Home

special tools - jrphotodesign.net

1. E meid E ON PARICE VALUS A T CLUTCH PRESSURE CONTROL SOLENOID VALVES G01818327 Fig 71 P Position Hydraulic Flow LOCK UP SYSTEM The lock up mechanism of the torque converter clutch operates in D position 2nd 3rd 4th and 5th in D position 2nd and 3rd and M sequential sportshift mode position 3rd 4th and 5th The pressurized fluid is drained from the back of the torque converter through a fluid passage causing the torque converter clutch piston to be held against the torque converter cover As this takes place the mainshaft rotates at the same speed as the engine crankshaft Together with the hydraulic control the PCM optimizes the timing and volume of the lock up mechanism When shift solenoid valve E is turned on by the PCM shift solenoid valve E pressure switches the lock up shift valve lock up on and off The A T clutch pressure control solenoid valve A and the lock up control valve control the amount of the lock up conditions Torque Converter Clutch Lock up ON Engaging Torque Converter Clutch Fluid in the chamber between the torque converter cover and the torque converter clutch piston is drained off and fluid entering from the chamber between the pump and stator exerts pressure through the torque converter clutch piston against the torque converter cover The torque converter clutch piston engages with the torque converter cover the torque converter clut
2. 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed MAINSHAFT TORQUE Z CONVERTER MAINSHAFT COUNTERSHAFT A IDLER GEAR 3RD GEAR FINAL DRIVE GEAR IDLER SHAFT COUNTERSHAFT IDLER GEAR SECONDARY SHAFT IDLER GEAR SECONDARY SHAFT SECONDARY SHAFT 3RD GEAR 3RD CLUTCH FINAL DRIVEN GEAR G01818284 Fig 30 3rd Gear Power Flow 4th Gear Hydraulic pressure is applied to the servo valve to engage the reverse selector with the countershaft 4th gear and reverse selector hub while the shift lever is in the D D and M positions forward range Hydraulic pressure is also applied to the 4th clutch then the 4th clutch engages the mainshaft 4th gear with the mainshaft The mainshaft 4th gear drives the countershaft 4th gear and the countershaft Power is transmitted to the final drive gear which in turn drives the final driven gear Wednesday March 12 2008 8 49 53 PM Page 34 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed MAAT actuen y imn 4TH GEAR MAINSHAFT f7 Sui st oo ae e eS H ia eran ia vata COUNTERSHAFT REVERSE SELECTOR HUB REVERSE SELECTOR COUNTERSHAFT 4TH GEAR pees FINAL DRIVEN GEAR G01818285 Fig 31 4th Gear Power Flow 5th Gear Hydraulic pressure is applied to the 5th clutch then the 5th clutch engages the mainshaft 5th gear with the mainshaft The mainshaft 5th gear drives the countershaft 5th gear an
3. 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed Terminal Description Measuring Condition Terminal Voltage Number a ee GRRE TS eee A T clutch pressure control solenoid With ignition switch ON Il Pulsing signal valve A control Shift solenoid valve C control Battery voltage in these positions 1st 3rd and 5th gears in D 69 and Reverse inhibit in R 0 V in these positions P and R oe _ 2nd and 4th gears in D DJ and M Shift solenoid valve E control Battery voltage in these positions P and R 0 V in these positions Reverse inhibit in R i D and GRN WHT Shift solenoid valve B control ery voltage in ess positions P R and N ist and 2nd gears in D 0J and N 0 V in these positions Reverse inhibit in R 3rd 4th and 5th gears in D 0 and M GRN RED Shift solenoid valve D control Battery voltage in these positions 2nd and 5th gears in D DJ and M 0 V in these positions Reverse inhibit in R R and N a 1st 3rd and 4th gears in D Dy and M Shift solenoid valve A control Banery voltage in these positions Ist 4th and 5th gears in D 03 and M 0 V in these positions Reverse inhibit in R P and N BLU YEL Ea A T clutch pressure control solenoid With ignition switch ON Ti ano signal valve C control G01818300 Fig 45 PCM Connector C 22P Inputs amp Outputs Terminal Wire Color Signal
4. P0776 77 3 P0777 77 4 Blinks ON _ Blinks ON Blinks ON A T clutch pressure control solenoid valve B stuck OFF A T clutch pressure control solenoid valve B stuck ON P0780 45 1 Blinks CN Shift control system see page 14 121 see page 14 122 _ see page 14 123 P0796 78 3 P0797 78 4 P0812 62 2 7 Blinks ON A T clutch pressure control solenoid valve C stuck OFF see page 14 124 OFF ON _ Blinks ON A T clutch pressure control solenoid valve C stuck see page 14 125 Transmission range switch ATP RVS switch _ P0815 24 5 4 Blinks Blinks ON see page 14 126 _ Transmission gear selection switch upshift switch short or stuck ON see page 14 128 P0816 24 6 Blinks ON Transmission gear selection switch downshift switch short or stuck ON _ see page 14 130 P0842 25 3 Blinks ON 2nd clutch transmission fluid pressure switch short or stuck ON see page 14 132 P0843 25 4 Blinks ON ae 2nd clutch transmission fluid pressure switch open or stuck OFF see page 14 134 P0847 26 3 P0848 26 4 Blinks Blinks son 3rd clutch transmission fluid pressure switch short or stuck ON 3rd clutch transmission fluid pressure switch open or stuck OFF see page 14 136 see page 14 138 P0957 24 3 Blinks
5. 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed lock up shift valve The lock up shift valve stays to the right to uncover the torque converter pressure ports leading to the left side of the torque converter and releasing pressure from the right side of the torque converter Torque converter pressure 92 changes to 94 at the lock up shift valve and enters into the left side of the torque converter to disengage the torque converter clutch This keeps the torque converter clutch piston keeps away from the torque converter cover and the torque converter lock up clutch is OFF NOTE When used left or right indicates direction on the hydraulic circuit TORQUE _ CONVERTER SHIFT SOLENOID VALVE E A T CLUTCH PRESSURE CONTROL SOLENOID VALVE A m t SHIFT VALVE A and D MANUAL VALVE REGULATOR VALVE ATF PUMP G01818330 Fig 74 No Lock up Fluid Flow Partial Lock up As the speed of the vehicle reaches the prescribed value shift solenoid valve E is turned ON by the PCM and shift solenoid valve E pressure SE is applied to the right side of the lock up shift valve The lock up shift Wednesday March 12 2008 8 49 54 PM Page 71 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed valve is moved to the left side to switch the torque converter pressure 91 port which goes to the right side of the torque converter and the port of torque converter pressure 94 is releas
6. 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed 2ND 2ND ACCUMULATOR CLUTCH 2ND CLUTCH 3RD CLUTCH TRANSMISSION FLUID MISSION FLUID diili URE E Mi TRANSI ATE i SWITCH i N li 1 ail TORQUE ih fl 3 tH i f omg pm I pO i ber F Bg oe r ple LH 5 ay PIS sid JJ Hfr CONVERTER J sit SOLENOID VALVES Konn f a SC SERVO CONTROL VALVE filed a oFF Ruan were B ON g SB sc Meldi c x kes o AIT CLUTCH PRESSURE CONTROL SOLENOID VALVES G01818317 Fig 61 D Position Shifting Between 1st Gear amp 2nd Gear Hydraulic Flow D Position Driving in 2nd gear The PCM turns shift solenoid valves C OFF D ON and keeps A and E OFF and B ON Shift solenoid valve C pressure SC in the right side of the shift valve C is released Shift valve C is moved to the right side to switch the ports This movement covers A T clutch pressure control solenoid valve pressure ports to stop at the shift valves C and A and uncover the line pressure port leading to the 2nd clutch Fluid flows to 2nd clutch by way of Line pressure 1 gt Manual valve Line pressure 4 gt Shift valve C Line pressure 5E gt Shift valve B Line pressure 5F gt Shift valve A 2nd clutch pressure 20 gt 2nd clutch The 2nd clutch pressure 20 is applied to the 2nd clutch and the 2nd clutch is engaged securely NOTE When used left or righ
7. E T A 8 z D D3 M Shifting from N position OFF ON ON f G01818291 Fig 37 Transmission Gear Shift Solenoid Valve Table GRADE LOGIC CONTROL ASCENDING CONTROL When the PCM determines that the vehicle is climbing a hill in D and D positions the system extends the engagement area of 2nd 3rd and 4th gears to prevent the transmission from frequently shifting between 2nd and 3rd gears between 3rd and 4th gears and between 4th and 5th gears so the vehicle can run smooth and have more power when needed Shift schedules stored in the PCM between 2nd and 3rd gears between 3rd and 4th gears and between 4th and 5th gears enable it to automatically select the most suitable gear according to the magnitude of a gradient ASCENDING MODE Upshift Schedule FLAT ROAD MODE GRADUAL ASCENDING MODE Se MEDIUM ASCENDING MODE scouacubcsusessencessinsives STEEP ASCENDING MODE Throttle opening HEAVY STEEP ASCENDING MODE 62 mph 100 km h Vehicle speed G01818292 Fig 38 Grade Logic Control Ascending Control Table GRADE LOGIC CONTROL DESCENDING CONTROL When the PCM determines that the vehicle is going down a hill in D and D positions the shift up speed from Wednesday March 12 2008 8 49 53 PM Page 41 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed Ath to 5th gear
8. 2 s s 6 7 Ul e sl peliegoed ee a ee 1e 9 17 12 13 14 16 leafed 2526 8 2084 MEAN A 31P C 22P Wire side of female terminals G01818446 Fig 190 Measuring The Resistance Between PCM Connector Terminals C4 amp A8 Or A9 11 Disconnect the shift solenoid harness connector at the transmission housing 12 Check for continuity between PCM connector terminals C4 and A8 or A9 Is there continuity YES Repair short to ground in the wire between PCM connector terminal C4 and the shift solenoid harness connector then go to step 13 NO Check shift solenoid valve B and check for a short in the shift solenoid harness in the transmission see SHIFT SOLENOID VALVE TEST Replace shift solenoid valve B and or shift solenoid harness then go to step 13 Wednesday March 12 2008 8 49 58 PM Page 233 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed PCM CONNECTORS SH B GRN WHT LG2 BRN YEL LG1 BRN YEL TRAE A BOE 2 Hfs a Hn ee Pelee Ze hohehahe Jelzi 128 30 8 ATEN VAVA A 31P C 22P Wire side of female terminals Fig 191 Checking For Continuity Between PCM Connector Terminals C4 amp A8 Or A9 13 Clear the DTC with the HDS 14 Start the engine in the P position 15 Check the OBD STATUS in DTCs MENU for a pass fail test of code P0976 Did the result indicate a pass YES The problem has been corrected NO Return to step 1 and recheck DTC P0977 OPEN IN SHIFT S
9. Retest drive the vehicle in the D position in all five gears at speeds over 12 mph 20 km h for more than 20 seconds then slow down to a stop Check the OBD STATUS in DTCs MENU for a pass fail test of code P1733 Did the result indicate a fail YES Go to step 8 NO Intermittent failure the system is OK at this time If the tester indicates NOT COMPLETE return to step 5 and recheck Clear the DTC with the HDS Select SHIFT SOL TEST in MISC TEST MENU then carry out A T SHIFT SOL D test in SHIFT SOL Wednesday March 12 2008 8 49 59 PM Page 260 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed TEST MENU with the HDS Is a clicking sound heard YES Go to step 10 NO Replace shift solenoid valve D see SHIFT SOLENOID VALVE REPLACEMENT then go to step 15 Select LINEAR SOL TEST in MISC TEST MENU then carry out LINEAR SOL CTEST in LINEAR SOL TEST MENU with the HDS Is the system OK YES Go to step 11 NO Follow instructions indicated on the HDS by the test result but the tester has not determined the cause of the failure go to step 14 If any part was replaced go to step 15 Test drive the vehicle in the D position in all five gears at speeds over 12 mph 20 km h for more than 20 seconds then slow down to a stop Retest drive the vehicle in the D position in all five gears at speeds over 12 mph 20 km h for more than 20 seconds then slow down to a stop Check the OB
10. Wednesday March 12 2008 8 50 01 PM Page 299 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed valves B and C connectors and connect the battery negative terminal to the No 2 terminal A clicking sound should be heard If no sound is heard remove the A T clutch pressure control solenoid valves B and C Check the fluid passage of the A T clutch pressure control solenoid valve for dust or dirt Connect the No 1 terminal of the A T clutch pressure control solenoid valves B and C connectors to the battery positive terminal and connect the No 2 terminal to the battery negative terminal Make sure the A T clutch pressure control solenoid valves B and C move Wednesday March 12 2008 8 50 01 PM Page 300 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed B G01818494 Fig 238 Checking A T Clutch Pressure Control Solenoid Valves B amp C Movement Wednesday March 12 2008 8 50 01 PM Page 301 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed 12 Disconnect one of the battery terminals and check valve movement NOTE You can see valve movement through the fluid passage in the mounting surface of the A T clutch pressure control solenoid valves B and C body 13 If either valve binds or moves sluggishly or if the solenoid valve does not operate replace the A T clutch pressure control solenoid valves B and C A T CLUTCH PRESSURE CONTROL SOLENOID VALVE B a
11. Wire side of female terminals G01818405 Fig 149 Measuring The Voltage Between PCM Connector Terminals A18 amp A8 Or A9 24 Measure the voltage between PCM connector terminals A20 and A8 or A9 Is there about 5 V YES Repair open in the wire between PCM connector terminal A20 and the countershaft speed sensor then go to step 30 NO Go to step 25 Wednesday March 12 2008 8 49 56 PM Page 156 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed PCM CONNECTOR A 31P LG2 BRN YEL LG1 BRN YEL 1 2 sfa sie 7 Ulejs ro hspahshe hehez O Aree 0 31 VCC2 YEL BLU Wire side of female terminals G01818406 Fig 150 Measuring The Voltage Between PCM Connector Terminals A20 amp A8 Or A9 Turn the ignition switch OFF Jump the SCS line with the HDS Disconnect PCM connector A 31P Check for continuity between PCM connector terminal A20 and body ground Is there continuity YES Repair short to ground in the wire between PCM connector terminal A20 and the countershaft speed sensor then go to step 30 NO Check for loose or poor connections at PCM connector terminal A20 If the connection is OK update the PCM if it does not have the latest software or substitute a known good PCM see PCM UPDATING amp SUBSTITUTION FOR TESTING then recheck If the symptom indication goes away with a known good PCM replace the original PCM Wednesday March 12 2008 8 49 56 PM Page 1
12. O rings clutch pressure O rings clutch pressure O rings No or low 4th Servo valve clutch pressure e 4th clutch in the IR position O rings G01818474 Fig 218 Pressure Symptoms amp Causes Table Install the sealing bolts with the new sealing washers and tighten the bolts to the specified torque Do not reuse old sealing washers Torque 18 N m 1 8 kgf m 13 Ibf ft 20 Install the air cleaner housing and intake air duct SHIFT SOLENOID VALVE TEST Wednesday March 12 2008 8 50 00 PM Page 277 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed 1 Connect the HDS to the DLC A A G01818475 Fig 219 Connecting The HDS To The DLC Select SHIFT SOL TEST in MISC TEST MENU on the HDS Carry out A T SHIFT SOL A B C D and E tests in SHIFT SOL TEST MENU with the HDS A clicking sound should be heard Shift solenoid valves test has finished if the test results are OK If no sound is heard remove the shift solenoid valves and test Remove the splash shield Remove the drain plug A and drain the automatic transmission fluid ATF Then reinstall the drain plug with a new sealing washer B Wednesday March 12 2008 8 50 00 PM Page 278 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed A 18 x 1 5mm 49 N m 5 0 kgf m 36 Ibf ft B G01818476 Fig 220 Removing The Drain Plug 7 Disconnect the battery negative termi
13. YES Go to step 7 NO The problem has been corrected If the tester indicates NOT COMPLETE return to step 6 and recheck Turn the ignition switch OFF Jump the SCS line with the HDS Disconnect PCM connector A 31P Disconnect the countershaft speed sensor connector Check for continuity between countershaft speed sensor connector terminal No 2 and body ground Is there continuity YES Repair short to ground in the wire between PCM connector terminal A18 and the countershaft speed sensor then go to step 18 NO Go to step 12 Wednesday March 12 2008 8 49 56 PM Page 160 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed COUNTERSHAFT SPEED SENSOR CONNECTOR NC BLK BLU Wire side of female terminals G01818409 Fig 153 Checking For Continuity Between Countershaft Speed Sensor Connector Terminal No 2 amp Body Ground 12 Connect PCM connector A 31P 13 Turn the ignition switch ON ID 14 Measure the voltage between countershaft speed sensor connector terminal No 2 and body ground Is there about 5 V YES Replace the countershaft speed sensor see COUNTERSHAFT SPEED SENSOR REPLACEMENT then go to step 18 NO Go to step 15 Wednesday March 12 2008 8 49 56 PM Page 161 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed COUNTERSHAFT SPEED SENSOR CONNECTOR NC BLK BLU Wire side of female terminals G01818410 Fig 154 Measuring
14. gangocuWDg Haleaggol oA Arspapsje 7pafisfoa 7 sholupehaliale Jeanene Aea A 31P C 22P Wire side of female terminals G01818459 Fig 203 Checking For Continuity Between PCM Connector Terminals C3 amp A8 Or A9 13 Clear the DTC with the HDS 14 Start the engine in the P position 15 Check the OBD STATUS in DTCs MENU for a pass fail test of code P0985 Did the result indicate a pass YES The problem has been corrected NO Return to step 1 and recheck DTC P0986 OPEN IN SHIFT SOLENOID VALVE E CIRCUIT NOTE Record all freeze data and review General Troubleshooting Information see GENERAL TROUBLESHOOTING INFORMATION before you troubleshoot This code is caused by an electrical circuit problem and cannot be caused by a mechanical problem in the transmission Clear the DTC with the HDS Start the engine and shift the transmission in 2nd gear in the M position Check that DTC P0986 recurs Wednesday March 12 2008 8 49 59 PM Page 252 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed Is DTC P0986 indicated YES Go to step 7 NO Go to step 4 Select SHIFT SOL TEST in MISC TEST MENU then carry out A T SHIFT SOL E test in SHIFT SOL TEST MENU with the HDS Start the engine and shift the transmission in 2nd gear in the M position Check the OBD STATUS in DTCs MENU for a pass fail test of code P0986 Did the result indicate a fail YES Go to step 7 NO Intermittent fail
15. BLU BLK LG1 BRN YEL LG2 BRN YEL E nol sfr4ii6 i6 16 19 20 24 23 24 25 26 28 30 53 A 31P D 17P Wire side of female terminals G01818343 Fig 87 Measuring The Voltage Between PCM Connector Terminals D6 amp A8 Or A9 Turn the ignition switch OFF 9 Jump the SCS line with the HDS Disconnect PCM connector D 17P Check for continuity between PCM connector terminal D6 and body ground Is there continuity YES Repair short in the wire between PCM connector terminal D6 and the transmission range switch then go to step 49 NO Go to step 12 Wednesday March 12 2008 8 49 54 PM Page 84 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed PCM CONNECTOR D 17P ATP P BLU BLK Wire side of female terminals G01818344 Fig 88 Checking For Continuity Between PCM Connector Terminal D6 amp Body Ground 12 Disconnect PCM connector A 31P 13 Check for continuity between PCM connector terminals A8 and body ground and between A9 and body ground Is there continuity YES Update the PCM if it does not have the latest software or substitute a known good PCM see PCM UPDATING amp SUBSTITUTION FOR TESTING then recheck If the Wednesday March 12 2008 8 49 54 PM Page 85 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed symptom indication goes away with a known good PCM replace the original PCM NO Repair open in the wire
16. BRN Wire side of female terminals G01818425 Fig 169 Measuring The Voltage Between Transmission Gear Selection Switch Connector Terminal No 3 amp Body Ground 9 Measure the voltage between PCM connector terminal D2 and body ground Is there about 5 V YES Repair open in the wire between PCM connector terminal D2 and the transmission gear selection switch connector then go to step 10 NO Check for loose or poor connections at PCM connector terminal D2 If the connection is OK update the PCM if it does not have the latest software or substitute a known good PCM see PCM UPDATING amp SUBSTITUTION FOR TESTING then recheck If the symptom indication goes away with a known good PCM replace the original PCM Wednesday March 12 2008 8 49 57 PM Page 203 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed PCM CONNECTOR D 17P S MODE BRN Wire side of female terminals G01818426 Fig 170 Measuring The Voltage Between PCM Connector Terminal D2 amp Body Ground Clear the DTC with the HDS Start the engine in the P position wait for more than 10 seconds then shift to the M position Push the shift lever toward shiftup position slowly and return to neutral position repeat this test 10 times or more Pull the shift lever toward shiftdown position slowly and return to neutral position repeat this test 10 times or more Wednesday March 12 2008 8 49 57 PM Page 2
17. Check the OBD STATUS in DTCs MENU for a pass fail test of code P0757 Did the result indicate a fail YES Go to step 8 NO Intermittent failure the system is OK at this time If the tester indicates NOT COMPLETE return to step 5 and recheck Clear the DTC with the HDS Select SHIFT SOL TEST in MISC TEST MENU then carry out A T SHIFT SOL B test in SHIFT SOL TEST MENU with the HDS Is a clicking sound heard YES Go to step 10 NO Replace shift solenoid valve B see SHIFT SOLENOID VALVE REPLACEMENT then go to step 13 Test drive the vehicle in the D position in all five gears at speeds over 12 mph 20 km h for more than 20 seconds then slow down to a stop Wednesday March 12 2008 8 49 56 PM Page 172 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed Retest drive the vehicle in the D position in all five gears at speeds over 12 mph 20 km h for more than 20 seconds then slow down to a stop Check the OBD STATUS in DTCs MENU for a pass fail test of code P0757 Did the result indicate a fail YES Repair shift valve B or replace the transmission then go to step 13 NO Intermittent failure the system is OK at this time If the tester indicates NOT COMPLETE return to step 10 and recheck Clear the DTC with the HDS Test drive the vehicle in the D position in all five gears at speeds over 12 mph 20 km h for more than 20 seconds then slow down to a stop Retest dr
18. If the connection is OK update the PCM if it does not have the latest software or substitute a known good PCM see PCM UPDATING amp SUBSTITUTION FOR TESTING then recheck If the symptom indication goes away with a known good PCM replace the original PCM NO Go to step 11 Wednesday March 12 2008 8 49 58 PM Page 235 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed PCM CONNECTORS SH B GRN WHT LG2 BRN YEL LG1 BRN YEL SER eee eleja et ey fee sholiipalisirans KEZTEA EVA A 31P C 22P Wire side of female terminals G01818448 Fig 192 Measuring The Resistance Between PCM Connector Terminals C4 amp A8 Or A9 11 Disconnect the shift solenoid harness connector at the transmission housing 12 Measure the resistance between shift solenoid harness connector terminal No 2 and body ground Is there 12 25 ohm YES Repair open in the wire between PCM connector terminal C4 and the shift solenoid harness connector then go to step 13 NO Check shift solenoid valve B and check for an open in the shift solenoid harness in the transmission see SHIFT SOLENOID VALVE TEST Replace shift solenoid valve B and or shift solenoid harness then go to step 13 Wednesday March 12 2008 8 49 58 PM Page 236 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed SHIFT SOLENOID HARNESS CONNECTOR SH B ORN Terminal side of male terminals G01818449 Fig 193 M
19. Je hioltifiz ia ialie prhielisieln C 22P Wire side of female terminals G01818454 Fig 198 Measuring The Resistance Between PCM Connector Terminals C5 amp A8 Or A9 11 Disconnect the shift solenoid harness connector at the transmission housing 12 Check for continuity between PCM connector terminals C5 and A8 or A9 Is there continuity YES Repair short to ground in the wire between PCM connector terminal C5 and the shift solenoid harness connector then go to step 13 NO Check shift solenoid valve D and check for a short in the shift solenoid harness in the transmission see SHIFT SOLENOID VALVE TEST Replace shift solenoid valve D and or shift solenoid harness then go step 13 Wednesday March 12 2008 8 49 59 PM Page 245 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed PCM CONNECTORS SH D GRN RED LG2 BRN YEL LG1 BRN YEL nejela ers 2 fsy qsyey roski sha J shofiapiahafiafia Jaane Peia A 31P C 22P Wire side of female terminals G01818455 Fig 199 Checking For Continuity Between PCM Connector Terminals C5 amp A8 Or A9 13 Clear the DTC with the HDS 14 Start the engine and shift the transmission in 2nd gear in the M position 15 Check the OBD STATUS in DTCs MENU for a pass fail test of code P0982 Did the result indicate a pass YES The problem has been corrected NO Return to step 1 and recheck DTC P0983 OPEN IN SHIFT SOLENOID VALVE D
20. TEST MENU then carry out A T SHIFT SOL A test in SHIFT SOL TEST MENU with the HDS Start the engine in the P position Check the OBD STATUS in DTCs MENU for a pass fail test of code P0974 Did the result indicate a fail YES Go to step 7 NO Intermittent failure the system is OK at this time Check for poor connections or loose terminals at the shift solenoid valve A and PCM If the tester indicates NOT COMPLETE return to step 4 and recheck 7 Turn the ignition switch OFF Jump the SCS line with the HDS Disconnect PCM connectors A 31P and C 22P Measure the resistance between PCM connector terminals C6 and A8 or A9 Is there 12 25 ohm YES Check for loose or poor connections at PCM connector terminal C6 If the connection is OK update the PCM if it does not have the latest software or substitute a known good PCM see PCM UPDATING amp SUBSTITUTION FOR TESTING then recheck If the symptom indication goes away with a known good PCM replace the original PCM NO Go to step 11 Wednesday March 12 2008 8 49 58 PM Page 229 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed PCM CONNECTORS SHA BLU BLK LG2 BRN YEL LG1 BRN YEL fz s 4 s e 7 i a sl 2 iL s 4 s 6 7 nol rs ralte 6 8 t9 20 21 8 holnfzjishaisl zanesena zheh A A 31P C 22P Wire side of female terminals G01818444 Fig 188 Measuring The Resistance Between PCM Connector Terminals C6
21. Test drive the vehicle for several minutes under the same conditions as those indicated by the freeze data 32 Check the OBD STATUS in DTCs MENU for a pass fail test of code P0716 Did the result pass YES The problem has been corrected NO Return to step 1 and recheck DTC P0717 PROBLEM IN MAINSHAFT SPEED SENSOR CIRCUIT NO SIGNAL INPUT NOTE e Record all freeze data and review General Troubleshooting Information see GENERAL TROUBLESHOOTING INFORMATION before you troubleshoot e This code is caused by an electrical circuit problem and cannot be caused by a mechanical problem in the transmission 1 Record all freeze data and clear the DTC with the HDS 2 Check for proper mainshaft speed sensor installation see MAINSHAFT SPEED SENSOR Wednesday March 12 2008 8 49 55 PM Page 122 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed REPLACEMENT Raise the front of the vehicle make sure it is securely supported and allow the front wheels to rotate freely Start the engine drive the vehicle in the D position and hold the vehicle at speeds over 30 mph 48 km h for more than 10 seconds Slow down and stop the wheels Check the OBD STATUS in DTCs MENU for a pass fail test of code P0717 Did the result fail YES Go to step 6 NO Intermittent failure the system is OK at this time If the tester indicates NOT COMPLETE return to step 4 and recheck Turn the ignition switch OFF Jum
22. and check for fluid leaks Drain the ATF see DRAINING amp REFILLING through a strainer Inspect the ATF and strainer for metal debris or burnt fluid Has the ATF deteriorated YES Replace ATF see DRAINING amp REFILLING and go to step 4 NO Go to step 8 Clear the DTC with the HDS Test drive the vehicle in the D position in all five gears at speeds over 12 mph 20 km h for more than 20 seconds then slow down to a stop Retest drive the vehicle in the D position in all five gears at speeds over 12 mph 20 km h for more than 20 seconds then slow down to a stop Check the OBD STATUS in DTCs MENU for a pass fail test of code P1730 Did the result indicate a fail YES Go to step 8 NO Intermittent failure the system is OK at this time If the tester indicates NOT COMPLETE return to step 5 and recheck Clear the DTC with the HDS 9 Select SHIFT SOL TEST in MISC TEST MENU then carry out A T SHIFT SOL A test in SHIFT SOL TEST MENU with the HDS Is a clicking sound heard YES Go to step 10 NO Replace shift solenoid valve A see SHIFT SOLENOID VALVE REPLACEMENT then go to step 15 Select SHIFT SOL TEST in MISC TEST MENU then carry out A T SHIFT SOL B test in SHIFT SOL TEST MENU with the HDS Is a clicking sound heard YES Go to step 11 NO Replace shift solenoid valve B see SHIFT SOLENOID VALVE REPLACEMENT then go to step 15 Select SHIFT SOL TEST in MISC TEST MENU
23. or oil and clean if necessary then connect the connector securely Wednesday March 12 2008 8 50 01 PM Page 304 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed 5 Install the intake air duct and air cleaner housing COUNTERSHAFT SPEED SENSOR REPLACEMENT 1 Disconnect the countershaft speed sensor connector and remove the countershaft speed sensor 6 x 1 0 mm 12 N m 1 2 kgf m 8 7 Ibf ft G01818497 Fig 241 Removing The Countershaft Speed Sensor Wednesday March 12 2008 8 50 01 PM Page 305 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed 2 Install the new O ring A on the new countershaft speed sensor B then install the countershaft speed sensor in the transmission housing 3 Check the connector for rust dirt or oil and clean if necessary then connect the connector securely 2ND CLUTCH TRANSMISSION FLUID PRESSURE SWITCH REPLACEMENT 1 Remove the intake air duct 2 Disconnect the connector from the 2nd clutch transmission fluid pressure switch A and remove the switch A 20 N m 2 0 kgf m 14 bf ft G01818498 Fig 242 Removing 2nd Clutch Transmission Fluid Pressure Switch 3 Make sure there is no water oil dust or foreign particles inside the connector 4 Install the new 2nd clutch transmission fluid pressure switch with a new sealing washer B and tighten Wednesday March 12 2008 8 50 01 PM Page 306 2004 Acura TSX 2004 AU
24. so the transmission is in 4th or 5th gear in M position then shift to 2nd gear The vehicle should immediately begin to slow down from engine braking Check for abnormal noise and clutch slippage in the R position Accelerate from a stop at full throttle and check for abnormal noise and clutch slippage Test in P Park Position Park the vehicle on a slope about 16 apply the brake and shift into the P position Release the brake the vehicle should not move NOTE Always use the brake to hold the vehicle when stopped on an incline in gear Depending on the grade of the incline the vehicle could roll backwards if the brake is released STALL SPEED TEST 1 Engage the parking brake and block all four wheels 2 Connect the HDS to the DLC A and go to the A T data list Wednesday March 12 2008 8 50 00 PM Page 267 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed A G01818465 Fig 209 Connecting The HDS To The DLC Make sure the A C switch is OFF After the engine has warmed up to normal operating temperature the radiator fan comes on shift to the D position Fully press the brake pedal and accelerator pedal for 6 to 8 seconds and note the maximum engine speed Do not move the shift lever while raising engine speed Allow 2 minutes for cooling then repeat the test in the R position NOTE Do not test stall speed for more than 10 seconds at a time Stall speed tests sho
25. CIRCUIT NOTE e Record all freeze data and review General Troubleshooting Information see GENERAL TROUBLESHOOTING INFORMATION before you troubleshoot e This code is caused by an electrical circuit problem and cannot be caused by a mechanical problem in the transmission 1 Clear the DTC with the HDS 2 Start the engine in the P position 3 Check that DTC P0983 recurs Wednesday March 12 2008 8 49 59 PM Page 246 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed Is DTC P0983 indicated YES Go to step 7 NO Go to step 4 Select SHIFT SOL TEST in MISC TEST MENU then carry out A T SHIFT SOL D test in SHIFT SOL TEST MENU with the HDS Start the engine in the P position Check the OBD STATUS in DTCs MENU for a pass fail test of code P0983 Did the result indicate a fail YES Go to step 7 NO Intermittent failure the system is OK at this time Check for poor connections or loose terminals at the shift solenoid valve D and PCM If the tester indicates NOT COMPLETE return to step 4 and recheck Turn the ignition switch OFF Jump the SCS line with the HDS 9 Disconnect PCM connectors A 31P and C 22P Measure the resistance between PCM connector terminals C5 and A8 or A9 Is there 12 25 ohm YES Check for loose or poor connections at PCM connector terminal C5 If the connection is OK update the PCM if it does not have the latest software or substitute a known good PCM see
26. DTC TROUBLESHOOTING DTC P0705 SHORT IN TRANSMISSION RANGE SWITCH CIRCUIT MULTIPLE SHIFT POSITION INPUT Wednesday March 12 2008 8 49 54 PM Page 82 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed e Record all freeze data and review General Troubleshooting Information see GENERAL TROUBLESHOOTING INFORMATION before you troubleshoot e This code is caused by an electrical circuit problem and cannot be caused by a mechanical problem in the transmission Clear the DTC with the HDS Start the engine Move the shift lever to each position and check the OBD STATUS in DTCs MENU for a pass fail test of code P0705 Did the result indicate a fail YES Go to step 4 NO Intermittent failure the system is OK at this time Check for an intermittent short in the wires between the transmission range switch and PCM If the tester indicates NOT COMPLETE return to step 1 and recheck Test the transmission range switch see TRANSMISSION RANGE SWITCH TEST Is the switch OK YES Go to step 5 NO Replace the transmission range switch then go to step 49 Turn the ignition switch ON ID Shift to all positions other than P Measure the voltage between PCM connector terminals D6 and A8 or A9 Is there about 5 V YES Go to step 14 NO Go to step 8 Wednesday March 12 2008 8 49 54 PM Page 83 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed PCM CONNECTORS ATP P
27. DTC with the HDS Select SHIFT SOL TEST in MISC TEST MENU then carry out A T SHIFT SOL E test in SHIFT SOL TEST MENU with the HDS Is a clicking sound heard YES Go to step 10 NO Replace shift solenoid valve E see SHIFT SOLENOID VALVE REPLACEMENT then go to step 13 Test drive the vehicle in the D position in all five gears at speeds over 12 mph 20 km h for more than 20 seconds then slow down to a stop Retest drive the vehicle in the D position in all five gears at speeds over 12 mph 20 km h for more than 20 seconds then slow down to a stop Check the OBD STATUS in DTCs MENU for a pass fail test of code P0771 Did the result indicate a fail YES Repair shift valve E or replace the transmission then go to step 13 NO Intermittent failure the system is OK at this time If the tester indicates NOT COMPLETE return to step 10 and recheck Clear the DTC with the HDS Test drive the vehicle in the D position in all five gears at speeds over 12 mph 20 km h for more than 20 seconds then slow down to a stop Retest drive the vehicle in the D position in all five gears at speeds over 12 mph 20 km h for more than 20 seconds then slow down to a stop Check the OBD STATUS in DTCs MENU for a pass fail test of code P0771 Did the result indicate a pass YES The problem has been corrected NO Return to step 1 and recheck DTC P0776 A T CLUTCH PRESSURE CONTROL SOLENOID VALVE B STUCK OFF NOTE R
28. Did the result indicate a pass YES The problem has been corrected NO Return to step 1 and recheck DTC P0721 PROBLEM IN COUNTERSHAFT SPEED SENSOR CIRCUIT Wednesday March 12 2008 8 49 55 PM Page 137 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed e Record all freeze data and review General Troubleshooting Information see GENERAL TROUBLESHOOTING INFORMATION before you troubleshoot e This code is caused by an electrical circuit problem and cannot be caused by a mechanical problem in the transmission Record all freeze data and clear the DTC with the HDS Raise the front of the vehicle make sure it is securely supported and allow the front wheels to rotate freely Start the engine drive the vehicle in the D position and hold the vehicle at speeds over 30 mph 48 km h for more than 10 seconds Slow down and stop the wheels Check the OBD STATUS in DTCs MENU for a pass fail test of code P0721 Did the result indicate a fail YES Go to step 5 NO Intermittent failure the system is OK at this time Check for poor connections or loose terminals at the countershaft speed sensor and PCM If the tester indicates NOT COMPLETE return to step 3 and recheck Turn the ignition switch OFF Jump the SCS line with the HDS Disconnect PCM connector A 31P and countershaft speed sensor connector Check for continuity between PCM connector terminals A8 and body ground and between A9 and b
29. FLUID PRESSURE SWITCH STUCK OFF NOTE e Record all freeze data and review General Troubleshooting Information see GENERAL TROUBLESHOOTING INFORMATION before you troubleshoot e This code is caused by an electrical circuit problem and cannot be caused by a mechanical problem in the transmission Clear the DTC with the HDS Start the engine and warm it up to normal operating temperature the radiator fan comes on Drive the vehicle in the 3rd gear in the M position and verify that the SHIFT MAP NUMBER indicates 3rd with the HDS in the A T data list Check the 3rd PRES SWITCH signal with the HDS in the A T data list Is the 3rd PRES SWITCH ON YES Go to step 4 NO Go to step 6 Drive the vehicle in 3rd gear in the M position for more than 5 seconds then upshift to 4th gear and drive in 4th gear for more than 5 seconds Slow down to a stop Check the OBD STATUS in DTCs MENU for a pass fail test of code P0848 Did the result indicate a fail YES Go to step 6 NO Intermittent failure the system is OK at this time Check for poor connections or loose terminals at the 3rd clutch transmission fluid pressure switch and PCM If the tester indicates NOT COMPLETE return to step 4 and recheck Turn the ignition switch OFF Disconnect the 3rd clutch transmission fluid pressure switch connector Turn the ignition switch ON ID Measure the voltage between the 3rd clutch transmission fluid pressure switch connector
30. If the resistance is out of standard disconnect the shift solenoid valve connector and measure its resistance at the solenoid valve terminal Replace the shift solenoid valve if the resistance is out of standard 21 Connect the battery negative terminal to body ground and connect the battery positive terminal to the shift solenoid valve terminal individually A clicking sound should be heard 22 If no sound is heard connect the battery positive terminal to the shift solenoid valve terminal and check for a clicking sound Replace the shift solenoid valve if no clicking sound is heard 23 Replace the shift solenoid harness if the test results are OK 24 Install a new O ring on the shift solenoid harness connector and install the connector in the transmission housing 25 Install the shift solenoid valve cover dowel pins and a new gasket 26 Install the new O ring on the ATF dipstick guide pipe and install the ATF dipstick guide pipe then install the harness clamp on the ATF dipstick guide pipe 27 Secure the ATF cooler line brackets on the transmission hanger with the bolts 28 Check the connector for rust dirt or oil then connect the connector securely 29 Install the transmission lower mount nuts 30 Install the transmission upper mount bracket bracket plate and ground cable then remove the transmission jack 31 Refill the transmission with ATF see DRAINING amp REFILLING 32 Install the battery base then in
31. Link Connector DLC If the D indicator and the MIL come on at the same time or if a driveability problem is suspected follow this procedure 1 Connect the HDS to the DLC See the HDS user s manual for specific instructions 2 Turn the ignition switch ON II select SCS mode then observe the D indicator in the gauge assembly Code 1 through 9 are indicated by individual short blinks Code 10 and above are indicated by a series of long and short blinks One long blink equals 10 short blinks Add the long and short blinks together to determine the code Wednesday March 12 2008 8 49 52 PM Page 6 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed Short blink once OFF G01818261 Fig 7 Example DTC 1 1 Long blink Short blinks five times OFF G01818262 Fig 8 Example DTC 15 5 Record all fuel and emissions DTCs and A T DTCs 4 If there is a fuel and emissions DTC first check the fuel and emissions system as indicated by the DTC except DTC 70 DTC 70 means there is one or more A T DTCs and no problems were detected in the fuel and emissions circuit of the PCM Clear the DTC and data Drive the vehicle for several minutes under the same conditions as those indicated by the freeze data and then recheck for DTC If the A T DTC returns go to the DTC Troubleshooting Index If the DTC does not return there was an intermittent problem within the circuit Make sure all pins and
32. NO Return to step 1 and recheck DTC P0722 PROBLEM IN COUNTERSHAFT SPEED SENSOR CIRCUIT NO SIGNAL INPUT NOTE e Record all freeze data and review General Troubleshooting Information see GENERAL TROUBLESHOOTING INFORMATION before you troubleshoot e This code is caused by an electrical circuit problem and cannot be caused by a mechanical problem in the transmission Wednesday March 12 2008 8 49 56 PM Page 148 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed 1 Clear the DTC with the HDS Raise the front of the vehicle make sure it is securely supported and allow the front wheels to rotate freely Start the engine drive the vehicle in the D position and hold the vehicle at speeds over 30 mph 48 km h for more than 10 seconds Check the OBD STATUS in DTCs MENU for a pass fail test of code P0722 Did the result indicate a fail YES Go to step 5 NO Intermittent failure the system is OK at this time Check for poor connections or loose terminals at the countershaft speed sensor and PCM If the tester indicates NOT COMPLETE return to step 3 and recheck Turn the ignition switch OFF Jump the SCS line with the HDS Disconnect PCM connector A 31P and countershaft speed sensor connector Check for continuity between PCM connector terminals A8 and body ground and between A9 and body ground Is there continuity YES Go to step 9 NO Repair open in the wires between PCM conn
33. ON 48 55 mph 78 88 km h Throttle position sensor voltage 2 25 V Ist 2nd 21 25 mph 34 40 km h 2nd gt 3rd 42 47 mph 67 75 km h 3rd gt 4th 65 71 mph 105 114 km h 4th 5th 110 116 mph 176 185 km h Lock up ON 106 117 mph 170 187 km h Fully opened throttle Throttle position sensor voltage 4 5 V Ist2nd 38 44 mph 62 70 km h 70 79 mph 113 126 km h 103 114 mph 165 182 km h 4th 5th Lock up ON 119 130 mph 191 208 km h G01818463 Fig 207 D Position Upshift Table Wednesday March 12 2008 8 49 59 PM Page 265 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed Throttle position sensor voltage 0 8 V Lock up OFF 47 53 mph 76 86 km h 5th 4th 31 34 mph 50 55 km h 4th 3rd 17 21 mph 28 33 km h 3rd 1st 5 8 mph 8 13 km h Throttle position sensor voltage 2 25 V Lock up OFF 78 86 mph 125 138 km h Fully opened throttle Throttle position sensor voltage 4 5 V Lock up OFF 116 127 mph 186 203 km h 5th 4th 120 130 mph 192 208 km h 4th 3rd 79 89 mph 127 143 km h 3rd 2nd 53 60 mph 85 96 km h 27 32 mph 04 52 kmh G01818464 Wednesday March 12 2008 8 50 00 PM Page 266 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed Fig 208 D Position Downshift Table Accelerate to about 35 mph 57 km h
34. SENSOR CIRCUIT NOTE e Record all freeze data and review General Troubleshooting Information see GENERAL TROUBLESHOOTING INFORMATION before you troubleshoot e This code is caused by an electrical circuit problem and cannot be caused by a mechanical problem in the transmission Check the ATF temperature with the HDS Does the ATF temperature exceed the ambient air temperature YES Record the ATF temperature Leave the engine off for more than 30 minutes and go to step 2 NO Record the ATF temperature Test the stall speed RPM see STALL SPEED TEST three times Go to step 2 after stall speed testing Check the ATF temperature with the HDS Did the ATF temperature change YES Leave the engine off for at least 30 more minutes and go to step 3 NO Replace ATF temperature sensor see ATF TEMPERATURE SENSOR TEST amp REPLACEMENT then go to step 5 Check the ECT SENSOR with the HDS Is the ECT SENSOR equal to the ambient air temperature YES Go to step 4 NO Leave the engine off until ECT sensor equals ambient air temperature then go to step 4 Check the ATF temperature with the HDS Is the ATF temperature almost equal to ECT SENSOR YES Intermittent failure the system is OK at this time Check for poor connections or loose terminals at the ATF temperature sensor and PCM NO Replace ATF temperature sensor see ATF TEMPERATURE SENSOR TEST amp REPLACEMENT then go to step 5 Clear the D
35. SOLENOID VALVE REPLACEMENT then go to step 14 Select SHIFT SOL TEST in MISC TEST MENU then carry out A T SHIFT SOL C test in SHIFT SOL TEST MENU with the HDS Is a clicking sound heard YES Go to step 11 NO Replace shift solenoid valve C see SHIFT SOLENOID VALVE REPLACEMENT then go to step 14 11 Test drive the vehicle in the D position in all five gears at speeds over 12 mph 20 km h for more than 20 seconds then slow down to a stop 12 Retest drive the vehicle in the D position in all five gears at speeds over 12 mph 20 km h for more than 20 seconds then slow down to a stop 13 Check the OBD STATUS in DTCs MENU for a pass fail test of code P1734 Wednesday March 12 2008 8 49 59 PM Page 262 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed Did the result indicate a fail YES Repair hydraulic system related with shift valves B and C or replace the transmission then go to step 14 NO Intermittent failure the system is OK at this time If the tester indicates NOT COMPLETE return to step 11 and recheck Clear the DTC with the HDS Test drive the vehicle in the D position in all five gears at speeds over 12 mph 20 km h for more than 20 seconds then slow down to a stop Retest drive the vehicle in the D position in all five gears at speeds over 12 mph 20 km h for more than 20 seconds then slow down to a stop Check the OBD STATUS in DTCs MENU for
36. The Voltage Between Countershaft Speed Sensor Connector Terminal No 2 amp Body Ground Turn the ignition switch OFF Disconnect PCM connector A 31P Check for continuity between PCM connector terminal A18 and countershaft speed sensor connector terminal No 2 Is there continuity YES Update the PCM if it does not have the latest software or substitute a known good PCM see PCM UPDATING amp SUBSTITUTION FOR TESTING then recheck If the Wednesday March 12 2008 8 49 56 PM Page 162 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed symptom indication goes away with a known good PCM replace the original PCM NO Repair open in the wire between PCM connector terminal A18 and the countershaft speed sensor then go to step 18 PCM CONNECTOR A 31P COUNTERSHAFT SPEED SENSOR CONNECTOR ee pol is i4 16 16 ie 19 20 21 Mec steal AE AEE NC BLK BLU BLK BLU Wire side of female terminals G01818411 Fig 155 Checking For Continuity Between PCM Connector Terminal A18 And Countershaft Speed Sensor Connector Terminal No 2 Clear the DTC with the HDS Test drive the vehicle for several minutes in the D position in all five gears Check the OBD STATUS in DTCs MENU for a pass fail test of code P0723 Did the result indicate a pass YES The problem has been corrected NO Return to step 1 and recheck DTC P0731 PROBLEM IN 1ST CLUTCH amp 1ST CLUTCH HYDRAULI
37. Wednesday March 12 2008 8 49 53 PM Page 29 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed COUNTERSHAFT 3RD GEAR TORQUE CONVERTER MAINSHAFT 5TH MAINSHAFT REVERSE MAINSHAI IDLER SEAR 4TH GEAR ST UTCH RING GEAR 4TH MAINSHAFT CLUTCH MAINSHAFT IDLER GEAR REVERSE GEAR r PARK GEAR FINAL DRIVE GEAR a COUNTERSHAFT 4 5TH GEAR IDLER SHAFT m Gay iji COUNTERSHAFT IDLER GEAR A IEJ 2ND GEAR REVERSE COUNTERSHAFT SELECTOR 1ST GEAR HUB i SECONDARY 2ND CLUTCH SHAFT IDLER A E GEAR SECONDARY A SHAFT COUNTERSHAFT V A N 2ND GEAR REVERSE GEAR 3RD REVERSE CLUTCH SELECTOR 1ST CLUTCH SECONDARY SHAFT 3RD GEAR SECONDARY ASSEMBLY COUNTERSHAFT 1ST GEAR FINAL DRIVEN GEAR G01818280 Fig 26 Transmission Cutaway View POWER FLOW P Position Hydraulic pressure is not applied to the clutches Power is not transmitted to the countershaft The countershaft is locked by the park pawl interlocking the park gear N Position Wednesday March 12 2008 8 49 53 PM Page 30 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed Engine power transmitted from the torque converter drives the mainshaft idler gear the idler shaft idler gear and the secondary idler gear but hydraulic pressure is not applied to the clutches Power is not transmitted to the countershaft In this position the position of the reverse s
38. Wednesday March 12 2008 8 49 58 PM Page 239 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed PCM CONNECTORS LG2 BRN YEL LG1 BRN YEL SH C GRN tlejsl4isjel7 i e 9 parpggg pol A ts 4ft6 18 fte t9 20 21 As hojhzjsja Asfali 28 s031 iahshslz A A 31P C 22P Wire side of female terminals G01818451 Fig 195 Checking For Continuity Between PCM Connector Terminals C2 amp A8 Or A9 13 Clear the DTC with the HDS 14 Start the engine and shift to the D position 15 Check the OBD STATUS in DTCs MENU for a pass fail test of code P0979 Did the result indicate a pass YES The problem has been corrected NO Return to step 1 and recheck DTC P0980 OPEN IN SHIFT SOLENOID VALVE C CIRCUIT NOTE e Record all freeze data and review General Troubleshooting Information see GENERAL TROUBLESHOOTING INFORMATION before you troubleshoot e This code is caused by an electrical circuit problem and cannot be caused by a mechanical problem in the transmission 1 Clear the DTC with the HDS 2 Start the engine in the P position Wednesday March 12 2008 8 49 59 PM Page 240 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed Check that DTC P0980 recurs Is DTC P0980 indicated YES Go to step 7 NO Go to step 4 Select SHIFT SOL TEST in MISC TEST MENU then carry out A T SHIFT SOL C test in SHIFT SOL TEST MENU with the HDS Start the engine in the P
39. Wire side of female terminals G01818441 Fig 185 Checking For Continuity Between A T Clutch Pressure Control Solenoid Valve C Connector Terminal No 2 amp Body Ground 10 Clear the DTC with the HDS 11 Test drive the vehicle for several minutes in the D position in all five gears 12 Check the OBD STATUS in DTCs MENU for a pass fail test of code P0971 Did the result indicate a pass YES The problem has been corrected NO Return to step 1 1 and recheck Wednesday March 12 2008 8 49 58 PM Page 225 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed DTC P0973 SHORT IN SHIFT SOLENOID VALVE A CIRCUIT NOTE e Record all freeze data and review General Troubleshooting Information see GENERAL TROUBLESHOOTING INFORMATION before you troubleshoot e This code is caused by an electrical circuit problem and cannot be caused by a mechanical problem in the transmission 1 Clear the DTC with the HDS Start the engine and shift to the D position Check that DTC P0973 recurs Is DTC P0973 indicated YES Go to step 7 NO Go to step 4 Select SHIFT SOL TEST in MISC TEST MENU then carry out A T SHIFT SOL A test in SHIFT SOL TEST MENU with the HDS Start the engine and shift to the D position Check the OBD STATUS in DTCs MENU for a pass fail test of code P0973 Did the result indicate a fail YES Go to step 7 NO Intermittent failure the system is OK at this time Check the BLU BLK w
40. YES Update the PCM if it does not have the latest software or substitute a known good PCM see PCM UPDATING amp SUBSTITUTION FOR TESTING then recheck If the symptom indication goes away with a known good PCM replace the original PCM NO Repair open or short in the wire between PCM connector terminal C1 and A T clutch Wednesday March 12 2008 8 49 57 PM Page 207 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed pressure control solenoid valve A then go to step 12 A T CLUTCH PRESSURE CONTROL SOLENOID VALVE A CONNECTOR LS A RED BLK Wire side of female terminals G01818429 Fig 173 Measuring The Voltage Between A T Clutch Pressure Control Solenoid Valve A Connector Terminals No 1 amp No 2 12 Clear the DTC with the HDS 13 Test drive the vehicle for several minutes in the D position in all five gears 14 Check the OBD STATUS in DTCs MENU for a pass fail test of code P0962 Did the result indicate a pass YES The problem has been corrected NO Return to step 1 and recheck DTC P0963 PROBLEM IN A T CLUTCH PRESSURE CONTROL SOLENOID VALVE A Wednesday March 12 2008 8 49 57 PM Page 208 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed NOTE e Record all freeze data and review General Troubleshooting Information see GENERAL TROUBLESHOOTING INFORMATIONGENERAL TROUBLESHOOTING INFORMATION before you troubleshoot e This code is caused by an electrical
41. a combination of a 3 element torque converter and triple shaft electronically controlled unit which provides 5 speeds forward and 1 reverse The entire unit is positioned in line with the engine TORQUE CONVERTER GEARS amp CLUTCHES The torque converter consists of a pump turbine and stator assembly in a single unit The converter housing pump is connected to the engine crankshaft and turn as the engine turns Around the outside of the torque converter is a ring gear which meshes with the starter pinion when the engine is being started The entire torque converter assembly serves as a flywheel while transmitting power to the transmission mainshaft the transmission has three parallel shafts the mainshaft the countershaft and the secondary shaft The mainshaft is Wednesday March 12 2008 8 49 53 PM Page 25 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed in line with the engine crankshaft and includes the 4th and 5th clutches and gears for 5th 4th reverse and idler The mainshaft reverse gear is integral with the mainshaft 4th gear The countershaft includes the gears for Ist 2nd 3rd 4th Sth reverse park and the final drive The final drive gear is integral with the countershaft The countershaft 4th gear and the countershaft reverse gear can be locked to the countershaft providing the 4th or reverse gear depending on which way the selector is moved The secondary shaft includes the Ist 2nd and 3rd clut
42. amp A8 Or A9 11 Disconnect the shift solenoid harness connector at the transmission housing 12 Measure the resistance between shift solenoid harness connector terminal No 5 and body ground Is there 12 25 ohm YES Repair open in the wire between PCM connector terminal C6 and the shift solenoid harness connector then go to step 13 NO Check shift solenoid valve A and check for an open in the shift solenoid harness in the transmission see SHIFT SOLENOID VALVE TEST Replace shift solenoid valve A and or shift solenoid harness then go to step 13 Wednesday March 12 2008 8 49 58 PM Page 230 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed SHIFT SOLENOID HARNESS CONNECTOR Terminal side of male terminals G01818445 Fig 189 Measuring The Resistance Between Shift Solenoid Harness Connector Terminal No 5 amp Body Ground 13 Clear the DTC with the HDS 14 Start the engine in the P position 15 Check the OBD STATUS in DTCs MENU for a pass fail test of code P0974 Did the result indicate a pass YES The problem has been corrected NO Return to step 1 and recheck DTC P0976 SHORT IN SHIFT SOLENOID VALVE B CIRCUIT NOTE e Record all freeze data and review General Troubleshooting Information see GENERAL TROUBLESHOOTING INFORMATION before you Wednesday March 12 2008 8 49 58 PM Page 231 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed troubleshoot
43. and plates are OK adjust the clearance with the clutch end plate Inspect the 1st clutch feed pipe If the 1st clutch feed pipe is scored replace the end cover Inspect the 3rd clutch feed pipe If the 3rd clutch feed pipe is scored replace it and O ring under the feed pipe guide Replace the secondary shaft if the bushing for the 1st or 3rd clutch feed pipe is loose or damaged Inspect the 5th clutch feed pipe If the Sth clutch feed pipe is scored replace it and O ring under the feed pipe guide Replace the mainshaft if the bushing for the 5th clutch feed pipe is loose or damaged Fig 18 Symptom Troubleshooting Index 5 Of 11 Wednesday March 12 2008 8 49 53 PM 2004 Acura TSX Symptom Late shift from the N position to the D and D3 positions Late shift from the N position to the R position G01818273 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed Shift solenoid valve E defective A T clutch pressure control solenoid valve A defective A T clutch pressure control solenoid valve B defective A T clutch pressure control solenoid valve C defective Shift cable broken or out of adjustment Joint in shift cable and transmission or body worn Mainshaft speed sensor defective Countershaft speed sensor defective ATF temperature sensor defective Foreign material in separator plate orifice Servo control valve defective 1st accumulator defective ist check ball stuck Lock up shift valve de
44. between PCM connector terminals A8 A9 and ground G101 or repair poor ground G101 then go to step 49 PCM CONNECTOR A 31P LG2 BRN YEL LG1 BRN YEL jzisla siel7 L ale pol 1 13 14 18 16 f18 19 20 21 A324228 28 20 31 Wire side of female terminals G01818345 Fig 89 Checking For Continuity Between PCM Connector Terminals A8 amp Body Ground amp Between A9 amp Body Ground 14 Shift to all positions other than R 15 Measure the voltage between PCM connector terminals D5 and A8 or A9 Is there about 5 V YES Go to step 20 NO Go to step 16 Wednesday March 12 2008 8 49 54 PM Page 86 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed PCM CONNECTORS ATP R WHT LG1 BRN YEL LG2 BRN YEL 1lelalajsie 7 IOl e 9 104 nshapshe fi8 9 20 21 Asaj 428 0f31 A 31P D 17P Wire side of female terminals G01818346 Fig 90 Measuring The Voltage Between PCM Connector Terminals D5 amp A8 Or A9 Turn the ignition switch OFF Jump the SCS line with the HDS Disconnect PCM connector D 17P Check for continuity between PCM connector terminal D5 and body ground Is there continuity YES Repair short in the wire between PCM connector terminal D5 and the transmission range switch then go to step 49 NO Update the PCM if it does not have the latest software or substitute a known good PCM see PCM UPDATING amp SUBSTITUTION FOR TESTING th
45. clutch and the 3rd clutch is engaged securely NOTE When used left or right indicates direction on the hydraulic circuit Wednesday March 12 2008 8 49 54 PM Page 61 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed 3o 34D 1st wom em ACCUMULATOR CLUTCH CLUTCH 1ST ACCUMULATOR TH Ehren ACCUMULATOR 245 2ND CLUTCH A TRANSMISSION FLUID TRANSMISSION FLUID aM E Aca TOR ar sip euMuLATOR c SIE _ oe T r ile ry in ia k eA i f mr scl ToRaUE Ky 6 A Ifi We gallog if 5 GR CONVERTER ra a yar Ms i u l TF Ls ll 7 IFT Vi io sA se ae MET a oFF A a SERVO CONTROL VALVE aca tua i iz SB me C ON 1 x UIH 0 oFF weiS0 Atel E orr x ny ox zol A T CLUTCH PRESSURE CONTROL SOLENOID VALVES G01818320 Fig 64 D Position Driving In 3rd Gear Hydraulic Flow D Position Shifting between 3rd gear amp 4th gear As the speed of the vehicle reaches the prescribed value the PCM turns shift solenoid valves C OFF and keeps A B D and E OFF Shift solenoid valve C pressure SC in the right side of the shift valve C is released Shift valve C is moved to the right side to uncover the ports of A T clutch pressure control solenoid valves B and C pressures leading to the 3rd and 4th clutches The PCM controls the A T clutch pressure control solenoid valves to regulate hydraulic pressure A T clutch pressure control solenoid valve B p
46. dowel pins and a new gasket 20 Install the new O ring on the ATF dipstick guide pipe and install the ATF dipstick guide pipe then install the harness clamp on the ATF dipstick guide pipe 21 Secure the ATF cooler line brackets on the transmission hanger with the bolts 22 Install the transmission lower mount nuts 23 Install the transmission upper mount bracket bracket plate and ground cable then remove the transmission jack 24 Refill the transmission with ATF see DRAINING amp REFILLING 25 Install the battery base then install the air cleaner housing and intake air duct 26 Install the battery tray battery and battery cover then secure the battery with its hold down bracket Connect the battery terminals 27 Install the splash shield A T CLUTCH PRESSURE CONTROL SOLENOID VALVE A TEST 1 Connect the HDS to the DLC A Wednesday March 12 2008 8 50 00 PM Page 292 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed G01818488 Fig 232 Connecting The HDS To The DLC Select LINEAR SOL TEST in MISC TEST MENU on the HDS Carry out LINEAR SOL A TEST in LINEAR SOL TEST MENU with the HDS Follow instructions indicated on the HDS by the test result If the HDS has not determined the cause of the failure remove A T clutch pressure control solenoid valve A and test Remove the intake air duct Disconnect the A T clutch pressure control solenoid valve A connector Wednesd
47. e This code is caused by an electrical circuit problem and cannot be caused by a mechanical problem in the transmission Clear the DTC with the HDS Start the engine in the P position Check that DTC P0976 recurs Is DTC P0976 indicated YES Go to step7 NO Go to step 4 Select SHIFT SOL TEST in MISC TEST MENU then carry out A T SHIFT SOL B test in SHIFT SOL TEST MENU with the HDS Start the engine in the P position Check the OBD STATUS in DTCs MENU for a pass fail test of code P0976 Did the result indicate a fail YES Go to step 7 NO Intermittent failure the system is OK at this time Check the GRN WHT wire for an intermittent short to ground between the shift solenoid valve B and PCM If the tester indicates NOT COMPLETE return to step 4 and recheck 7 Turn the ignition switch OFF Jump the SCS line with the HDS Disconnect PCM connectors A 31P and C 22P Measure the resistance between PCM connector terminals C4 and A8 or A9 Is there less than 12 ohm YES Go to step 11 NO Update the PCM if it does not have the latest software or substitute a known good PCM see PCM UPDATING amp SUBSTITUTION FOR TESTING then recheck If the symptom indication goes away with a known good PCM replace the original PCM Wednesday March 12 2008 8 49 58 PM Page 232 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed PCM CONNECTORS SH B GRN WHT LG2 BRN YEL LG1 BRN YEL
48. from 3rd to 4th gear and from 2nd to 3rd gear when the throttle is closed becomes faster than the set speed for flat road driving to widen the 4th gear 3rd gear and 2nd gear driving area This in combination with engine braking from the deceleration lock up achieves smooth driving when the vehicle is descending There are three descending modes with different 4th gear driving areas 3rd gear driving areas and 2nd gear driving areas according to the magnitude of a gradient stored in the PCM When the vehicle is in 5th gear or 4th gear and you are decelerating when you are applying the brakes on a steep hill the transmission will downshift to lower gear When you accelerate the transmission will then return to a higher gear DECENDING MODE Downshift Schedule FLAT ROAD MODE GRADUAL DESCENDING MODE MEDIUM DESCENDING MODE STEEP DESCENDING MODE Throttle opening 0 62 mph 100 km h Vehicle speed G01818293 Fig 39 Grade Logic Control Descending Control Table CLUTCH PRESSURE CONTROL The PCM actuates the A T clutch pressure control solenoid valves A B and C to control the clutch pressure When shifting between lower and higher gears the clutch pressure regulated by the A T clutch pressure control solenoid valves A B and C engages and disengages the clutch smoothly The PCM receives input signals from the various sensors and switches performs processing data and outputs a current to the A T clutch pressure
49. go to step 29 NO Go to step 15 Wednesday March 12 2008 8 49 55 PM Page 140 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed COUNTERSHAFT SPEED SENSOR CONNECTOR 2 3 NC BLK BLU Q Wire side of female terminals G01818391 Fig 135 Checking For Continuity Between Countershaft Speed Sensor Connector Terminal No 2 amp Body Ground 15 Check for continuity between countershaft speed sensor connector terminal No 3 and body ground Is there continuity YES Go to step 16 NO Repair open in the wire between the countershaft speed sensor and ground G101 or repair poor ground G 101 then go to step 29 Wednesday March 12 2008 8 49 55 PM Page 141 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed COUNTERSHAFT SPEED SENSOR CONNECTOR LG2 BRN YEL Wire side of female terminals G01818392 Fig 136 Checking For Continuity Between Countershaft Speed Sensor Connector Terminal No 3 amp Body Ground 16 Connect PCM connector A 31P 17 Turn the ignition switch ON ID 18 Measure the voltage between countershaft speed sensor connector terminals No 2 and No 3 Is there about 5 V YES Go to step 19 NO Go to step 28 Wednesday March 12 2008 8 49 55 PM Page 142 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed COUNTERSHAFT SPEED SENSOR CONNECTOR NC BLK BLU LG2 BRN YEL Wire side of female terminals G
50. hydraulic circuit Wednesday March 12 2008 8 49 54 PM Page 66 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed IRo aro 1ST Recumurator 2ND 2ND CLUTCH 3RD CLUTCH ACCUMULATOR CLUTCH See AC TH ACCU OR TRANSMISSION FLUID TRANSMISSION FLUID 3 j co PRESSURE PRESSURE SWITCH SWITCH A T CLUTCH PRESSURE CONTROL SOLENOID VALVES G01818325 Fig 69 R Position Shifting To R Position From P Or N Position Hydraulic Flow R Position Driving in reverse gear After starting off in reverse gear the PCM turns shift solenoid valves A ON and keeps B and E ON and C and D OFF Shift solenoid valve A port SA is applied to the right side of shift valve A to cover A T clutch pressure control solenoid valve A pressure and to uncover the port leading to the 4th clutch creating full line pressure The 4th clutch is engaged securely with line pressure Reverse Inhibitor Control While the vehicle is moving forward the PCM keeps shift solenoid valve E OFF The shift valve E covers the port of line pressure 3 leading to the servo valve reverse position The servo valve cannot be shifted to reverse position and hydraulic pressure is not applied to 4th clutch from the servo valve for reverse as a result power is not transmitted to the reverse direction NOTE When used left or right indicates direction on the hydraulic ci
51. i i i j ki i iho RESA a Ht IRA phar bed IEA 30 a gm 7 g ae a nO o OF VALVES z REE AREER 5 N i x x 5A XX 56 5E 10 pagt na Anan Id a oF ii l bo L gg SERVO CONTROL VALVE meld shea Pee Lo SHIT Li Il E Eiana _ i um ja n res o ic B OFF ho y im g Ii Id V a oe i i x SC Mele c on x mog D ON s0 sE Me E OFF A T CLUTCH PRESSURE CONTROL SOLENOID VALVES G01818324 Fig 68 D Position Driving In 5th Gear Hydraulic Flow R Position Shifting to R position from P or N position When shifting to the R position the PCM turns shift solenoid valves B and E ON and A C and D OFF Shift solenoid valve B pressure SB is applied to the right side of the shift valve B and the shift valve B is moved to the left side Shift solenoid valve E pressure SE is applied to the left side of shift valve E and shift valve E is moved to the right side Line pressure 1 changes to 3 at the manual valve and flows to the servo valve via the shift valve E The servo valve is moved to reverse range position Movement of the shift valves B and E and servo valve creates 4th clutch line pressure between the 4th clutch and the A T clutch pressure control solenoid valve A The 4th clutch pressure 40 is applied to the 4th clutch and the 4th clutch is engaged gently NOTE When used left or right indicates direction on the
52. if it does not have the latest software or substitute a known good PCM see PCM UPDATING amp SUBSTITUTION FOR TESTING then recheck If the symptom indication goes away with a known good PCM replace the original PCM Wednesday March 12 2008 8 49 57 PM Page 192 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed PCM CONNECTOR C 22P 12 34 5 6 7 9 holt fi2 ia ia is h7elsi2o V OP2SW BLU RED Wire side of female terminals G01818419 Fig 163 Measuring The Voltage Between PCM Connector Terminal C13 amp Body Ground Clear the DTC with the HDS Start the engine and warm it up to normal operating temperature the radiator fan comes on Drive the vehicle in 2nd gear in the M position for more than 5 seconds then upshift to 4th gear and drive in 4th gear for more than 5 seconds Slow down to a stop Check the OBD STATUS in DTCs MENU for a pass fail test of code P0843 Did the result indicate a pass YES The problem has been corrected NO Return to step 1 and recheck DTC P0847 SHORT IN 3RD CLUTCH TRANSMISSION FLUID PRESSURE SWITCH CIRCUIT OR 3RD CLUTCH TRANSMISSION FLUID PRESSURE SWITCH STUCK ON Wednesday March 12 2008 8 49 57 PM Page 193 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed e Record all freeze data and review General Troubleshooting Information see GENERAL TROUBLESHOOTING INFORMATION before you troubleshoot e This code is cau
53. km h for more than 20 seconds then slow down to a stop Check the OBD STATUS in DTCs MENU for a pass fail test of code P1731 Did the result indicate a pass YES The problem has been corrected NO Return to step 1 and recheck DTC P1732 PROBLEM IN SHIFT CONTROL SYSTEM e Shift Solenoid Valves B or C Stuck ON e Shift Valves B or C Stuck Wednesday March 12 2008 8 49 59 PM Page 258 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed NOTE Record all freeze data and review General Troubleshooting Information see GENERAL TROUBLESHOOTING INFORMATION before you troubleshoot Warm up the engine to normal operating temperature the radiator fan comes on Check to be sure that the transmission is filled to the proper level and check for fluid leaks Drain the ATF see DRAINING amp REFILLING through a strainer Inspect the ATF and strainer for metal debris or burnt fluid Has the ATF deteriorated YES Replace ATF see DRAINING amp REFILLING and go to step 4 NO Go to step 8 Clear the DTC with the HDS Test drive the vehicle in the D position in all five gears at speeds over 12 mph 20 km h for more than 20 seconds then slow down to a stop Retest drive the vehicle in the D position in all five gears at speeds over 12 mph 20 km h for more than 20 seconds then slow down to a stop Check the OBD STATUS in DTCs MENU for a pass fail test of code P1732 Did th
54. lock up When the shift solenoid valve E is turned ON the condition of the lock up starts The A T clutch pressure control solenoid valve A regulates and applies the hydraulic pressure to the lock up control valve to control the amount of the lock up The lock up mechanism operates in 2nd 3rd 4th and 5th gears in D position 2nd and 3rd gears in D position and 3rd 4th and 5th gears in M position Wednesday March 12 2008 8 49 53 PM Page 43 Engine Coolant Temperature Sensor Signal Transmission Gear Selection Shift Switch Signal Transmission Range Switch Signal Throttle Position Sensor Signal Countershaft Speed Sensor Signal Mainshaft Speed Sensor Signal ATF Temperature Sensor Signal Engine RPM Signal G01818295 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed Barometric Pressure Sensor Signal ar driving shift Ri position H Correction R of ATF u temperature sensor data Driving shift osition nformation Fig 41 Lock up Control Schematic PCM ELECTRICAL CONNECTIONS Wednesday March 12 2008 8 49 53 PM Page 44 P cM Engine coolant temperature control Shifting position contro Gradient control by magnitude Fail safe control Lock up Control Lock up ON OFF control Lock up condition control Master Target of Controlling Current Shift Solenoid ValveE Control Solenoid Cur
55. on the hydraulic circuit Wednesday March 12 2008 8 49 54 PM Page 57 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed f 2ND Seumuaton Oren a S a AEUMUATOR S r o cuon ACCUMULATOR Guron 2ND CLU Paana a e ft ea O aff AGEUMULATOR im H CONVER ie tad eo SB sc MEIH c on 4 XAX ote A T CLUTCH PRESSURE CONTROL SOLENOID VALVES ry EPA m I coour x X l RELIEF VALVE ESI G01818316 Fig 60 D Position Driving In 1st Gear Hydraulic Flow D Position Shifting between 1st gear amp 2nd gear As the speed of the vehicle reaches the prescribed value the PCM turns shift solenoid valve A OFF and keeps B and C ON and D and E OFF Shift solenoid valve A pressure SA in the right side of the shift valve A is released Shift valve A is moved to the right side to uncover the ports of A T clutch pressure control solenoid valve pressure leading to the 1st and 2nd clutches The PCM controls the A T clutch pressure control solenoid valve to regulate hydraulic pressure A T clutch pressure control solenoid valve A pressure 55 changes to 1st clutch pressure 10 at shift valve B and A T clutch pressure control solenoid valve B pressure 56 changes to 2nd clutch pressure 20 at shift valve A The 1st and 2nd clutches are engaged gently NOTE When used left or right indicates direction on the hydraulic circuit Wednesday March 12 2008 8 49 54 PM Page 58
56. position Check the OBD STATUS in DTCs MENU for a pass fail test of code P0980 Did the result indicate a fail YES Go to step 7 NO Intermittent failure the system is OK at this time Check for poor connections or loose terminals at the shift solenoid valve C and PCM If the tester indicates NOT COMPLETE return to step 4 and recheck 7 Turn the ignition switch OFF Jump the SCS line with the HDS Disconnect PCM connectors A 31P and C 22P Measure the resistance between PCM connector terminals C2 and A8 or A9 Is there 12 25 ohm YES Check for loose or poor connections at PCM connector terminal C2 If the connection is OK update the PCM if it does not have the latest software or substitute a known good PCM see PCM UPDATING amp SUBSTITUTION FOR TESTING then recheck If the symptom indication goes away with a known good PCM replace the original PCM NO Go to step 11 Wednesday March 12 2008 8 49 59 PM Page 241 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed PCM CONNECTORS LG2 BRN YEL LG1 BRN YEL SH C GRN 2 3 aislel7 Li 3 9 ae ea pol 13 t4 18 16 18 1920 21 9 hofupehajiahs J 2s lealy 25 26 L 25 20 51 ADOTE A 31P C 22P Wire side of female terminals G01818452 Fig 196 Measuring The Resistance Between PCM Connector Terminals C2 amp A8 Or A9 11 Disconnect the shift solenoid harness connector at the transmission housing 12 Measure the resi
57. software or substitute a known good PCM see PCM UPDATING amp SUBSTITUTION FOR TESTING then recheck If the symptom indication goes away with a known good PCM replace the original PCM Wednesday March 12 2008 8 49 55 PM Page 131 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed PCM CONNECTOR A 31P alelslsisjei7 Hle s pauDT RYOTE jile VCC1 YEL RED Wire side of female terminals G01818384 Fig 128 Checking For Continuity Between PCM Connector Terminal A21 amp Body Ground 29 Measure the voltage between PCM connector terminals C19 and A8 or A9 Is there about 5 V YES Repair open in the wire between PCM connector terminal C19 and the mainshaft speed sensor connector then go to step 30 NO Check for loose or poor connections at PCM connector terminal C19 If the connection is OK update the PCM if it does not have the latest software or substitute a known good PCM see PCM UPDATING amp SUBSTITUTION FOR TESTING then recheck If the Wednesday March 12 2008 8 49 55 PM Page 132 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed symptom indication goes away with a known good PCM replace the original PCM PCM CONNECTORS LG2 LG1 BRN YEL BRN YEL fe 1 2 LI 3 4 5 6 7 Ae pesas Arzhel NM WHT RED Wire side of female terminais G01818385 Fig 129 Measuring The Voltage Between PCM Connector Terminals C19 amp A8 Or A9 30 Clear th
58. terminal and body ground Is there about 5 V YES Replace the 3rd clutch transmission fluid pressure switch see 3RD CLUTCH TRANSMISSION FLUID PRESSURE SWITCH REPLACEMENT then go to step 11 NO Go to step 10 Wednesday March 12 2008 8 49 57 PM Page 196 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed 3RD CLUTCH TRANSMISSION FLUID PRESSURE SWITCH CONNECTOR Wire side of female terminals G01818421 Fig 165 Measuring The Voltage Between The 3rd Clutch Transmission Fluid Pressure Switch Connector Terminal amp Body Ground 10 Measure the voltage between PCM connector terminal C10 and body ground Is there about 5 V YES Repair open in the wire between PCM connector terminal C10 and the 3rd clutch transmission fluid pressure switch then go to step 11 NO Check for loose or poor connections at PCM connector terminal C10 If the connection is OK update the PCM if it does not have the latest software or substitute a known good PCM see PCM UPDATING amp SUBSTITUTION FOR TESTING then recheck If the symptom indication goes away with a known good PCM replace the original PCM Wednesday March 12 2008 8 49 57 PM Page 197 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed PCM CONNECTOR C 22P 1 2 U s 4 s 6 7 9 ho rifrefisfals kph OP3SW BLU WHT sm eel Wire side of female terminals G01818422 Fig 166 Measuring The Voltage Betwee
59. terminals at the transmission range switch and PCM NO Go to step 4 4 Turn the ignition switch OFF Check for continuity between PCM connector terminals A8 and body ground and between A9 and body ground Is there continuity YES Go to step 6 NO Repair open in the wires between PCM connector terminals A8 A9 and ground G101 and repair poor ground G101 then go to step 12 Wednesday March 12 2008 8 49 56 PM Page 181 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed PCM CONNECTOR A 31P LG2 BRN YEL LG1 BRN YEL 2 3jaisle 7 ife a LeS petals Vell alka Wire side of female terminals G01818412 Fig 156 Checking For Continuity Between PCM Connector Terminals A8 amp Body Ground amp Between A9 amp Body Ground 6 Turn the ignition switch ON ID 7 Shift to the R position 8 Measure the voltage between PCM connector terminals C12 and A8 or A9 Is there voltage YES Go to step 9 NO Check for loose or poor connections at PCM connector terminal C12 If the connection is OK update the PCM if it does not have the latest software or substitute a known good PCM see PCM UPDATING amp SUBSTITUTION FOR TESTING then recheck If the symptom indication goes away with a known good PCM replace the original PCM Wednesday March 12 2008 8 49 56 PM Page 182 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed PCM CONNECTORS ATP RVS L
60. terminals in the circuit are tight CLEAR A T DTCS amp PCM RESET PROCEDURES 1 Connect the HDS to the DLC 2 Turn the ignition switch ON ID 3 Clear the DTC s on the HDS screen HOW TO TROUBLESHOOT CIRCUITS AT THE PCM Wednesday March 12 2008 8 49 52 PM Page 7 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed Special Tools Required Backprobe set 0O7SAZ 001000A two required Pull back the carpet and remove the passenger s center lower cover see PASSENGER S DASHBOARD LOWER COVER REMOVAL INSTALLATION Inspect the circuit on the PCM according to the DTC troubleshooting with the special tools and a digital multimeter Connect the backprobe adapters A to the stacking patch cords B and connect the cords to a multimeter C A 07SAZ 001000A G01818263 Fig 9 Connecting The Backprobe Adapters To The Stacking Patch Cords amp Connecting The Wednesday March 12 2008 8 49 52 PM Page 8 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed Cords To A Multimeter Using the wire insulation as a guide for the contoured tip of the backprobe adapter gently slide the tip into the connector from the wire side until it touches the end of the wire terminal If you cannot get to the wire side of the connector or the wire side is sealed disconnect the connector and use the tester probe to probe the connectors from the terminal side Do not force the prob
61. the N position 0 V signal input In other than the N position About 5 V G01818301 Fig 46 PCM Connector C 22P Inputs amp Outputs Wednesday March 12 2008 8 49 53 PM Page 47 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed Terminal Wire Color Signal Description Measuring Conditions Terminal Voltage Number S MODE Transmission gear selection switch S In M position 0 V mode switch signal input at In other than M position About 5V WHT BLU S UP Transmission gear selection switch In M position t upshift switch signal input Shift lever pushed toward upshift position marked with 0V L ee Shift lever released in neutral position About 5 V WHT ATPR Transmission range switch R position In the R position 0 V input In other than the R position About 5 V BLU BLK ATPP Transmission range switch P position In the P position 0 V A aA input BRED p In other than the P position About 5 V ORN SDN Transmission gear selection switch In M position downshift switch signal input Shift lever pushed toward downshift position marked with 0V eee SEL Shift lever released in neutral position About 5V LT GRN METINH A T gear position indicator control With ignition switch ON iI Battery voltage signal output G01818303 Fig 47 PCM Connector D 17P Inputs amp Outputs Terminal
62. the shift lever operation Wednesday March 12 2008 8 50 02 PM Page 336
63. then go to step 8 Turn the ignition switch OFF Jump the SCS line with the HDS Disconnect PCM connector C 22P Check for continuity between the No 6 terminal of the shift solenoid harness connector and body ground Is there continuity YES Repair short to ground in the wire between PCM connector terminal C14 and the shift solenoid harness connector then go to step 8 NO Check for a short to ground in the shift solenoid harness wire in the transmission see ATF TEMPERATURE SENSOR TEST amp REPLACEMENT If the wire is OK update the PCM if it does not have the latest software or substitute a known good PCM see PCM UPDATING amp SUBSTITUTION FOR TESTING then recheck If the symptom indication goes away with a known good PCM replace the original PCM Wednesday March 12 2008 8 49 55 PM Page 106 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed SHIFT SOLENOID HARNESS CONNECTOR Wire side of female terminals G01818362 Fig 106 Checking For Continuity Between The No 6 Terminal Of The Shift Solenoid Harness Connector amp Body Ground 8 Clear the DTC with the HDS 9 Test drive the vehicle for several minutes in the D position in all five gears 10 Check the OBD STATUS in DTCs MENU for a pass fail test of code P0712 Did the result indicate a pass YES The problem has been corrected NO Return to step 1 and recheck DTC P0713 OPEN IN ATF TEMPERATURE SENSOR
64. transmission Clear the DTC with the HDS Start the engine and shift the transmission in 2nd gear in the M position Check that DTC P0982 recurs Is DTC P0982 indicated YES Go to step 7 NO Go to step 4 Select SHIFT SOL TEST in MISC TEST MENU then carry out A T SHIFT SOL D test in SHIFT SOL TEST MENU with the HDS Start the engine and shift the transmission in 2nd gear in the M position Check the OBD STATUS in DTCs MENU for a pass fail test of code P0982 Did the result indicate a fail YES Go to step 7 NO Intermittent failure the system is OK at this time Check the GRN RED wire for an intermittent short to ground between the shift solenoid valve D and PCM If the tester indicates NOT COMPLETE return to step 4 and recheck 7 Turn the ignition switch OFF Jump the SCS line with the HDS Disconnect PCM connectors A 31P and C 22P Measure the resistance between PCM connector terminals C5 and A8 or A9 Is there less than 12 ohm YES Go to step 11 NO Update the PCM if it does not have the latest software or substitute a known good PCM see PCM UPDATING amp SUBSTITUTION FOR TESTING then recheck If the symptom indication goes away with a known good PCM replace the original PCM Wednesday March 12 2008 8 49 59 PM Page 244 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed PCM CONNECTORS SH D GRN RED LG2 BRN YEL LG1 BRN YEL 1 2 LI s 4 5 6 7
65. worn or damaged replace the discs as a set Inspect the clutch waved plate height If the height is out of tolerance replace the waved plate If the discs and plates are OK adjust the clearance with the clutch end plate Inspect the 3rd clutch feed pipe If the 3rd clutch feed pipe is scored replace it and O ring under the feed pipe guide Replace the secondary shaft if the bushing for the 3rd clutch feed pipe is loose or damaged Fig 21 Symptom Troubleshooting Index 8 Of 11 Wednesday March 12 2008 8 49 53 PM Page 22 Symptom 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed Probable cause s Excessive shock or flares on 4 5 upshift or 5 4 downshift Noise from transmission in all shift lever positions Vehicle does not accelerate more than 31 mph 50 km h A T clutch pressure control solenoid valve B defective A T clutch pressure control solenoid valve C defective Foreign material in separator plate orifice 4th accumulator defective 5th accumulator defective 4th clutch defective 5th clutch defective ATF pump worn or binding Mainshaft bearing countershaft bearing or secondary shaft bearing defective Torque converter one way clutch defective Check the D indicator and check for loose connectors Inspect the solenoid valve filter gasket for wear and damage and inspect the solenoid valves for seizure Check the 4th and 5th clutch pressures Inspect the clut
66. 004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed PCM CONNECTORS LG2 LG1 BRN YEL BRN YEL alels alsje 7 Li 8 s Bee eta pol fra ta rs hie e ts 20 21 9 hojnhehsnahs lilna Ateher A NM WHT RED Wire side of female terminals G01818382 Fig 126 Measuring The Voltage Between PCM Connector Terminals C19 amp A8 Or A9 24 Measure the voltage between PCM connector terminals A21 and A8 or A9 Is there 4 75 V 5 25 V YES Repair open in the wire between PCM connector terminal A21 and the mainshaft speed sensor connector then go to step 30 NO Go to step 25 Wednesday March 12 2008 8 49 55 PM Page 130 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed PCM CONNECTOR A 31P LG2 BRN YEL LG1 BRN YEL i 2 s 4 5 6 7 Ujs s Y po fsiansiie hrslisjzolz G zanso VCC1 YEL RED Wire side of female terminals G01818383 Fig 127 Measuring The Voltage Between PCM Connector Terminals A21 amp A8 Or A9 Turn the ignition switch OFF Jump the SCS line with the HDS Disconnect PCM connector A 31P Check for continuity between PCM connector terminal A21 and body ground Is there continuity YES Repair short to ground in the wire between PCM connector terminal A21 and the mainshaft speed sensor connector then go to step 30 NO Check for loose or poor connections at PCM connector terminal A21 If the connection is OK update the PCM if it does not have the latest
67. 01818393 Fig 137 Measuring The Voltage Between Countershaft Speed Sensor Connector Terminals No 2 amp No 3 19 Connect countershaft speed sensor connector 20 Measure the voltage between PCM connector terminals A18 and A8 or A9 Is there 0 V or about 5 V YES Go to step 21 NO Replace the countershaft speed sensor see COUNTERSHAFT SPEED SENSOR REPLACEMENT then go to step 29 Wednesday March 12 2008 8 49 55 PM Page 143 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed PCM CONNECTOR A 31P LG2 BRN YEL LG1 BRN YEL Tee ELE YD ehste shla Zaen Eo NC BLK BLU Wire side of female terminals G01818394 Fig 138 Measuring The Voltage Between PCM Connector Terminals A18 amp A8 Or A9 21 Shift to the P position Start the engine and let it idle 22 Shift to the D position and measure the voltage between PCM connector terminals A18 and A8 or A9 Is there 1 5 V 3 5 V YES Update the PCM if it does not have the latest software or substitute a known good PCM see PCM UPDATING amp SUBSTITUTION FOR TESTING then recheck If the symptom indication goes away with a known good PCM replace the original PCM NO Replace the countershaft speed sensor see COUNTERSHAFT SPEED SENSOR REPLACEMENT then go to step 29 Wednesday March 12 2008 8 49 55 PM Page 144 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed PCM CONNECTOR A 31P 1G2
68. 02 PM Page 332 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed ae G01818636 Fig 268 Installing The Transmission Range Switch On The Control Shaft 9 Tighten the bolts on the transmission range switch while you continue to hold the N position Do not move the transmission range switch when tightening the bolts Remove the feeler gauge Wednesday March 12 2008 8 50 02 PM Page 333 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed 12 N m 1 2 kgf m 8 7 Ibf ft G01818637 Fig 269 Tightening The Bolts On The Transmission Range Switch 10 Connect the connector securely then install the transmission range switch cover A Wednesday March 12 2008 8 50 02 PM Page 334 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed G01818638 Fig 270 Installing The Transmission Range Switch Cover 11 Turn the ignition switch ON II Move the shift lever through all positions and check the transmission range switch synchronization with the A T gear position indicator 12 Check that the engine will start in P and N positions and will not start in any other shift lever position 13 Check that the back up lights come on when the shift lever is in R position Wednesday March 12 2008 8 50 02 PM Page 335 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed 14 Allow the front wheels to rotate freely then start the engine and check
69. 04 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed 14 Check the OBD STATUS in DTCs MENU for a pass fail test of code P0958 Did the result indicate a pass YES The problem has been corrected NO Return to step 1 and recheck DTC P0962 PROBLEM IN A T CLUTCH PRESSURE CONTROL SOLENOID VALVE A CIRCUIT NOTE e Record all freeze data and review General Troubleshooting Information see GENERAL TROUBLESHOOTING INFORMATION before you troubleshoot e This code is caused by an electrical circuit problem and cannot be caused by a mechanical problem in the transmission Clear the DTC with the HDS Check that DTC P0962 recurs Is DTC P0962 indicated YES Go to step 6 NO Go to step 3 Select P CTRL SOL CONTROL in MISC TEST MENU then select P CONTROL SOL A in P CTRL SOL CTRL MENU with the HDS 4 Drive with the A T clutch pressure control solenoid valve A at 1 0 A in SOL A CONTROL menu Check the OBD STATUS in DTCs MENU for a pass fail test of code P0962 Did the result indicate a fail YES Go to step 6 NO Intermittent failure the system is OK at this time Check for poor connections or loose terminals at the A T clutch pressure control solenoid valve A and PCM If the tester indicates NOT COMPLETE return to step 3 and recheck Turn the ignition switch OFF Disconnect the A T clutch pressure control solenoid valve A connector Measure A T clutch pressure control solenoid valve A resistan
70. 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed PCM CONNECTORS LG2 LG1 BRN YEL BRN YEL 112 3 afele 7 Oe s DE Bebo eee oe ZBDGRECE eslile 281 031 ibe NM WHT RED Wire side of female terminals G01818372 Fig 116 Measuring The Voltage Between PCM Connector Terminals C19 amp A8 Or A9 24 Measure the voltage between PCM connector terminals A21 and A8 or A9 Is there 4 75 V 5 25 V YES Repair open in the wire between PCM connector terminal A21 and the mainshaft speed sensor connector then go to step 30 NO Go to step 25 Wednesday March 12 2008 8 49 55 PM Page 119 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed PCM CONNECTOR A 31P LG2 BRN YEL LG1 BRN YEL 2 7 Ls 9 V elise eats V 23 24 25 26 8 8018 VCC1 YEL RED Wire side of female terminals G01818373 Fig 117 Measuring The Voltage Between PCM Connector Terminals A21 amp A8 Or A9 Turn the ignition switch OFF Jump the SCS line with the HDS Disconnect PCM connector A 31P Check for continuity between PCM connector terminal A21 and body ground Is there continuity YES Repair short to ground in the wire between PCM connector terminal A21 and the mainshaft speed sensor connector then go to step 30 NO Check for loose or poor connections at PCM connector terminal A21 If the connection is OK update the PCM if it does not have the latest software or substitute a known good P
71. 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed SPECIAL TOOLS Toot Number Description 07GAB PF50101 or 07GAB PF50100 Mainshaft Holder 07GAD SD40101 Attachment 78 x 90 mm 07GAE PG40200 or 07GAE PG4020A Clutch Spring Compressor Bolt Assembly O7HAC PK40102 Housing Puller O7HAJ PK40201 Preload Inspection Tool 07JAD PH80101 Oil Seal Driver Attachment O7KAF PS30200 Bearing Separator 07LAD PW50601 Attachment 40 x 50 mm O7LAE PX40100 Clutch Spring Compressor Attachment O07MAJ PY4011A A T Pressure Hose 2210 mm O7MAJ PY40120 A T Pressure Hose Adapter 07QAD P0A0100 Attachment 42 mm I D 07SAZ 001000A Backprobe Set 07ZAE PRPO100 Clutch Compressor Attachment 07406 0020400 or 07406 0020401 A T Oil Pressure Gauge Set w Panel 07736 A01000B or 07736 A01000A Adjustable Bearing Puller 25 40 mm 07746 0010100 Attachment 32 x 35 mm 07746 0010300 Attachment 42 x 47 mm 07746 0010400 Attachment 52 x 55 mm 07746 0010500 Attachment 62 x 68 mm 07746 0010600 Attachment 72 x 75 mm 07746 0010800 Attachment 22 x 24 mm 07746 0030100 Driver 40 mm I D 07749 0010000 Driver 07947 SD90101 Oil Seal Driver Attachment 07947 ZV00100 Oil Seal Driver Attachment If the top arm is too short replace it with O7SAC P0Z01001 07HAE PL50101 may be used to substitute one of these tools Must be used with commercially available 3 8 16 slide hammer G01818255 Oj T CGOL
72. 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed Is there continuity YES Repair short to ground in the wire between PCM connector terminal C19 and mainshaft speed sensor then go to step 30 NO Go to step 16 MAINSHAFT SPEED SENSOR CONNECTOR as 1 2 3 NM WHT RED Wire side of female terminals G01818368 Fig 112 Checking For Continuity Between Mainshaft Speed Sensor Connector Terminal No 2 amp Body Ground Wednesday March 12 2008 8 49 55 PM Page 115 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed 16 Check for continuity between mainshaft speed sensor connector terminal No 3 and body ground Is there continuity YES Go to step 17 NO Repair open in the wire between the mainshaft speed sensor connector and ground G101 then go to step 30 MAINSHAFT SPEED SENSOR CONNECTOR Z 3 LG1 BRN YEL Wire side of female terminals G01818369 Fig 113 Checking For Continuity Between Mainshaft Speed Sensor Connector Terminal No 3 amp Body Ground 17 Connect PCM connector C 22P 18 Turn the ignition switch ON II Wednesday March 12 2008 8 49 55 PM Page 116 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed 19 Measure the voltage between mainshaft speed sensor connector terminals No 2 and No 3 Is there about 5 V YES Go to step 20 NO Go to step 29 MAINSHAFT SPEED SENSOR CONNECTOR NM W
73. 4 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed PCM CONNECTOR C 22P Wire side of female terminals G01818351 Fig 95 Checking For Continuity Between PCM Connector Terminal C20 amp Body Ground 31 Shift to all positions other than D 32 Measure the voltage between PCM connector terminals C17 and A8 or A9 Is there about 5 V YES Go to step 37 NO Go to step 33 Wednesday March 12 2008 8 49 54 PM Page 92 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed PCM CONNECTORS LG2 LG1 BRN YEL BRN YEL 1 ielelals e 7 Ols s 2Ha 5 6 7 pol 1 13 14 t6 16 fie t9 20 21 9 po 11fi2 13 t4 16 Alzin elfs theks ATP D YEL GRN Wire side of female terminals G01818352 Fig 96 Measuring The Voltage Between PCM Connector Terminals C17 amp A8 Or A9 Turn the ignition switch OFF Jump the SCS line with the HDS Disconnect PCM connector C 22P Check for continuity between PCM connector terminal C17 and body ground Is there continuity YES Repair short in the wire between PCM connector terminal C17 and the transmission range switch then go to step 49 NO Update the PCM if it does not have the latest software or substitute a known good PCM see PCM UPDATING amp SUBSTITUTION FOR TESTING then recheck If the symptom indication goes away with a known good PCM replace the original PCM Wednesday March 12 2008 8 49 54 PM Page 93 2004 Acura
74. 49 56 PM Page 178 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed Test drive the vehicle in the D position in all five gears at speeds over 12 mph 20 km h for more than 20 seconds then slow down to a stop Retest drive the vehicle in the D position in all five gears at speeds over 12 mph 20 km h for more than 20 seconds then slow down to a stop Check the OBD STATUS in DTCs MENU for a pass fail test of code P0796 Did the result indicate a fail YES Go to step 8 NO Intermittent failure the system is OK at this time If the tester indicates NOT COMPLETE return to step 5 and recheck Clear the DTC with the HDS Select LINEAR SOL TEST in MISC TEST MENU then carry out LINEAR SOL C TEST in LINEAR SOL TEST MENU with the HDS Is the system OK YES Intermittent failure the system is OK at this time If the tester indicates NOT COMPLETE return to step 9 and recheck NO Follow instructions indicated on the HDS by the test result but the tester has not determined the cause of the failure go to step 10 If any part was replaced go to step 11 Inspect A T clutch pressure control solenoid valve C see A T CLUTCH PRESSURE CONTROL SOLENOID VALVE B amp C TEST Does the A T clutch pressure control solenoid valve C work properly YES Repair hydraulic system related with shift valve B and C or replace the transmission then go to step 11 NO Replace A T clutch pressure control solenoid val
75. 5 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed When used left or right indicates direction on the hydraulic circuit aRD ano 1ST am 47H 5 ao 2ND 1st ACCUMULATOR 5TH ACCUMULATOR 2D oy 3RD CLUTCH ACCUMULATOR CLUTCH CLUTCH CLUTCH CLUTCH 7 rece TT bas co T Beman e E ee E Ze SHIFT SOLENOID VALVES sc ed i a a ate Ice gtr gt r 4 XAX A T CLUTCH PRESSURE CONTROL SOLENOID VALVES G01818314 Fig 58 N Position Hydraulic Flow D Position 1st gear shifting from N position Shift solenoid valves remain the same as in the N position when shifting to the D position from N The manual valve is moved to the D position and switches the port of line pressure 4 leading to the A T clutch pressure control solenoid valve C Hydraulic pressure to the 1st clutch from the A T clutch pressure control solenoid valve A is available as shift solenoid valve A is OFF B and C stay ON A T clutch pressure control solenoid valve A pressure 55 changes to 1st clutch pressure 10 at the shift valve B and flows to the 1st clutch The Ist clutch is engaged gently when shifting to the D position from N NOTE When used left or right indicates direction on the hydraulic circuit Wednesday March 12 2008 8 49 54 PM Page 56 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed anD aro 157 an se ror 240 3RD CLUTCH ACCUMUL
76. 57 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed PCM CONNECTOR A 31P 1 2 3 4 s5 6 7 L 8 9 pol pishrahshie fi8 19 20 24 23 24 25126 AE AEE Wire side of female terminals G01818407 Fig 151 Checking For Continuity Between PCM Connector Terminal A20 amp Body Ground 29 Measure the voltage between PCM connector terminals A18 and A8 or A9 Is there about 5 V YES Repair open in the wire between PCM connector terminal A18 and the countershaft speed sensor then go to step 30 NO Check for loose or poor connections at PCM connector terminal A18 If the connection is OK update the PCM if it does not have the latest software or substitute a known good Wednesday March 12 2008 8 49 56 PM Page 158 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed PCM see PCM UPDATING amp SUBSTITUTION FOR TESTING then recheck If the symptom indication goes away with a known good PCM replace the original PCM PCM CONNECTOR A 31P LG2 BRN YEL LG1 BRN YEL NC BLK BLU Wire side of female terminals G01818408 Fig 152 Measuring The Voltage Between PCM Connector Terminals A18 amp A8 Or A9 30 Clear the DTC with the HDS 31 Test drive the vehicle for several minutes in the D position in all five gears 32 Check the OBD STATUS in DTCs MENU for a pass fail test of code P0722 Did the result indicate a pass YES The problem has been corrected NO Ret
77. 64 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed ano aro 1st aun aH STH an ACCUMULATOR CLUTCH CLUTCH 1ST ACCUMULATOR Ciircy CLUTCH enu ACCUMULATOR CLUTCH 2ND CLUTCH ah TRANSMISSION FLUID PRESSURE 7 ii li i Q Fo pG i a torau Me E SHIFT SOLENOID VAI on LVES H servo CONTROL VALVE no won x mc x m Tie x IT S a A T CLUTCH PRESSURE CONTROL SOLENOID VALVES G01818323 Fig 67 D Position Shifting Between 4th Gear amp 5th Gear Hydraulic Flow D Position Driving in 5th gear The PCM turns shift solenoid valves C ON and keeps A and D ON and B and E OFF Shift solenoid valve C pressure SC is applied to the right side of shift valve C Shift valve C is moved to the left side to switch the port of A T clutch pressure control solenoid valve B pressure to the 4th clutch The 5th clutch pressure 50 is held to high by the A T clutch pressure control solenoid valve C and the 5th clutch is engaged securely NOTE When used left or right indicates direction on the hydraulic circuit Wednesday March 12 2008 8 49 54 PM Page 65 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed SRD 3RD 1st UMULATOR CLUTCH CLUTCH 4TH 2ND 2ND at ACCUMULATOR ACCUMULATOR CLUTCH 2ND CLUTCH 3RD CLUTCH bao ITC 18T ure STH cy s PRESSURE O FLUID Ly iit 4 iit ar aa Jii i ae f if mrausuyesion FLUID G i j rll ii l
78. 7 P0721 9 5 Blinks ON __ Countershaft speed sensor range performance _ see page 14 99 P0722 9 3 Blinks ON_ Countershaft speed sensor no signal input see page 14 103 P0723 9 6 Blinks ON Countershaft speed sensor intermittent failure see page 14 107 P0731 64 1 Blinks OFF 1st gear incorrect ratio see page 14 109 _ P0732 64 2 Blinks OFF 2ndgearincorrectratio ___ see page 14 110 _ P0733 64 3 Blinks OFF 3rd gear incorrect ratio see page 14 111 P0734 64 4 Blinks OFF _ 4th gear incorrect ratio see page 14 112 P0735 64 5 Blinks OFF 5th gear incorrect ratio_ see page 14 113 P0741 40 3 Blinks OFF Torque converter clutch circuit performance or see page 14 114 stuck OFF et get eos P0747 76 4 Blinks A T clutch pressure control solenoid valve A stuck see page 14 115 P0752 70 4 _ i see page 14 116 _ P0756 71 3 i Shift solenoid valve B stuck OFF see page 14 117 P0757 71 4 i Shift solenoid valve B stuck ON see page 14 118 P0761 72 3 i Shift solenoid valve C stuck OFF see page 14 119 G01818265 Fig 11 DTC Troubleshooting Index 1 Of 3 Wednesday March 12 2008 8 49 52 PM I eaa 2004 Acura TSX P0771 74 3 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed D Indicator O Detection Item Shift solenoid valve E stuck OFF see page 14 120
79. 7 and body ground Is there continuity YES Repair short to ground in the wire between PCM connector terminal D3 and the transmission gear selection switch connector then go to step 12 NO Check for loose or poor connections at PCM connector terminal D3 If the connection is OK update the PCM if it does not have the latest software or substitute a known good PCM see PCM UPDATING amp SUBSTITUTION FOR TESTING then recheck If the symptom indication goes away with a known good PCM replace the original PCM Wednesday March 12 2008 8 49 57 PM Page 185 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed TRANSMISSION GEAR SELECTION SWITCH PARK PIN SWITCH CONNECTOR Wire side of female terminals G01818415 Fig 159 Checking For Continuity Between Transmission Gear Selection Switch Connector Terminal No 7 amp Body Ground Clear the DTC with the HDS Start the engine in the P position wait for more than 10 seconds then shift to the M position Push the shift lever toward shiftup position slowly and return to neutral position repeat this test 10 times or more Pull the shift lever toward shiftdown position slowly and return to neutral position repeat this test 10 times or more Check the OBD STATUS in DTCs MENU for a pass fail test of code P0815 Did the result indicate a pass YES The problem has been corrected NO Return to step 1 and recheck DTC P0816 SHOR
80. 80 NOTE P0780 means there is one or more A T DTCs about the shift control system Are there other DTCs YES Go to step 2 NO Update the PCM if it does not have the latest software or substitute a known good PCM see PCM UPDATING amp SUBSTITUTION FOR TESTING then recheck If the symptom indication goes away with a known good PCM replace the original PCM 2 Perform the troubleshooting flowchart for the indicated codes e P1730 see DTC P1730 PROBLEM IN SHIFT CONTROL SYSTEM P1731 see DTC P1731 PROBLEM IN SHIFT CONTROL SYSTEM P1732 see DTC P1732 PROBLEM IN SHIFT CONTROL SYSTEM P1733 see DTC P1733 PROBLEM IN SHIFT CONTROL SYSTEM P1734 see DTC P1734 PROBLEM IN SHIFT CONTROL SYSTEM DTC P0796 A T CLUTCH PRESSURE CONTROL SOLENOID VALVE C STUCK OFF NOTE Record all freeze data and review General Troubleshooting Information see GENERAL TROUBLESHOOTING INFORMATION before you troubleshoot Warm up the engine to normal operating temperature the radiator fan comes on Check to be sure that the transmission is filled to the proper level and check for fluid leaks Drain the ATF see DRAINING amp REFILLING through a strainer Inspect the ATF and strainer for metal debris or burnt fluid Has the ATF deteriorated YES Replace ATF see DRAINING amp REFILLING and go to step 4 NO Go to step 8 4 Clear the DTC with the HDS Wednesday March 12 2008 8
81. 980 22 4 _ see page 14 164 Shift solenoid valve C open see page 14 166 Shift solenoid valve D short P0982 60 3 Blinks ON P0983 60 4 Blinks ON Shift solenoid valve D open see page 14 168 _ see page 14 170 P0985 61 3 Blinks ON P0986 61 4 Blinks ON Shift solenoid valve E short Shift solenoid valve E open see page 14 172 see page 14 174 P1730 45 2 Blinks ON Shift control system see page 14 176 Shift solenoid valves A or D stuck OFF Shift solenoid valve B stuck ON _ Shift valves A B or D stuck Shift control system Shift solenoid valve E stuck ON Shift valve E stuck A T clutch pressure control solenoid valve A stuck OFF _ Shift control system Shift solenoid valves B or C stuck ON e Shift valves B or C stuck Shift control system Shift solenoid valve D stuck ON Shift valve D stuck A T clutch pressure control solenoid valve C stuck OFF Shift control system Shift solenoid valves B or C stuck OFF Shift valves B or C stuck P1731 45 3 see page 14 178 P1732 45 4 Blinks see page 14 180 Blinks see page 14 182 P1734 45 6 ON see page 14 184 Fig 13 DTC Troubleshooting Index 3 Of 3 SYMPTOM TROUBLESHOOTING INDEX These symptoms DO NOT trigger diagnostic trouble codes DTCs or cause the D indic
82. ATOR CLUTCH ACCUMULATOR ditiron G r STH ARCUMULATOR Clutcn 2ND CLUTCH TATA Srp ACCUMULATOR ACCUMULATOR T TRANSMISSION FLUID TRANSMISSION FLUID ii il z amaa 1 PRE RE i H CONVERTER rm at me S z PRESSURE T Teal Mf Hii i ki Trt in a L TORQUE con i OE DO j SHAN TIHE ih W amp tonp tions i K SOLENOID VALVES P orr u x META s on so aid lt x mS so TE Hims ee yi l n 5155 1 XAX i Hu B ae 1 i Fi A ji 57 gio e 4 XAX AJT CLUTCH PRESSURE CONTROL SOLENOID VALVES G01818315 Fig 59 D Position 1st Gear Shifting From N Position Hydraulic Flow D Position Driving in 1st gear The PCM turns shift solenoid valves A ON and keeps B and C ON and D and E OFF Shift solenoid valve A pressure SA is applied to the right side of shift valve A Shift valve A is moved to the left side to uncover the line pressure port leading to the 1st clutch and to cover A T clutch pressure control solenoid valve pressure port Fluid flows to the 1st clutch by way of Line pressure 1 gt Shift valve D Line pressure 1A gt Shift valve A Line pressure 1B Manual valve Line pressure 5A gt Shift valve C Line pressure 5B gt Shift valve B 1st clutch pressure 10 gt Ist clutch The Ist clutch pressure 10 is applied to the Ist clutch and the Ist clutch is engaged securely NOTE When used left or right indicates direction
83. BRN YEL LG1 BRN YEL elses Ts E Uee Q o s ai YV NC BLK BLU Wire side of female terminals G01818395 Fig 139 Measuring The Voltage Between PCM Connector Terminals A18 amp A8 Or A9 23 Measure the voltage between PCM connector terminals A20 and A8 or A9 Is there 4 75 V 5 25 V YES Repair open in the wire between PCM connector A20 and the countershaft speed sensor then go to step 29 NO Go to step 24 Wednesday March 12 2008 8 49 55 PM Page 145 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed PCM CONNECTOR A 31P LG2 BRN YEL LG1 BRN YEL 1 2 s3 4 s ej 7 Ole 9 Y pol Arsiiahstiel helisjeolz G espars ny 28 81 VCC2 YEL BLU Wire side of female terminals G01818396 Fig 140 Measuring The Voltage Between PCM Connector Terminals A20 amp A8 Or A9 Turn the ignition switch OFF Jump the SCS line with the HDS Disconnect PCM connector A 31P Check for continuity between PCM connector terminal A20 and body ground Is there continuity YES Repair short to ground in the wire between PCM connector terminal A20 and the countershaft speed sensor then go to step 29 NO Check for loose or poor connections at PCM connector terminal A20 If the connection is OK update the PCM if it does not have the latest software or substitute a known good PCM see PCM UPDATING amp SUBSTITUTION FOR TESTING then recheck If the symptom indication goes away with a kn
84. C CIRCUIT NOTE Record all freeze data and review General Troubleshooting Information see GENERAL TROUBLESHOOTING INFORMATION before you troubleshoot 1 Warm up the engine to normal operating temperature the radiator fan comes on Wednesday March 12 2008 8 49 56 PM Page 163 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed 2 Check to be sure that the transmission is filled to the proper level and check for fluid leaks Drain the ATF see DRAINING amp REFILLING through a strainer Inspect the ATF and strainer for metal debris or burnt fluid Has the ATF deteriorated YES Replace ATF see DRAINING amp REFILLING and test drive the vehicle under the same conditions as those indicated by the freeze data then recheck NO Go to step 4 Measure the line pressure see PRESSURE TEST Is the line pressure within service limits YES Go to step 5 NO Repair the ATF pump and regulator valve or replace the transmission Measure the Ist clutch pressure see PRESSURE TEST Is the 1st clutch pressure within service limits YES Go to step 6 NO Shift valves B and Care stuck Repair these valves and hydraulic circuit or replace the transmission Clear the DTC with the HDS 7 Test drive the vehicle for several minutes under the same conditions as those indicated by the freeze data or drive in the Ist gear in the D position at 10 mph 16 km h for 20 seconds Check the OBD STATUS
85. C TRANSMISSIONS Diagnosis MCTA 5 Speed PCM CONNECTOR C 22P 1 2 U s 4 5 6 7 spolu hehshahs Freher ATP D3 RED Wire side of female terminals G01818355 Fig 99 Checking For Continuity Between PCM Connector Terminal C9 amp Body Ground 43 Shift to all positions other than D and D 44 Measure the voltage between PCM connector terminals C18 and A8 or A9 Is there about 5 V Wednesday March 12 2008 8 49 54 PM Page 96 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed YES Update the PCM if it does not have the latest software or substitute a known good PCM see PCM UPDATING amp SUBSTITUTION FOR TESTING then recheck If the symptom indication goes away with a known good PCM replace the original PCM NO Go to step 45 PCM CONNECTORS LG2 LG1 BRN YEL BRN YEL galggagg Zis hojiatehshahs Zheh ATP FWD BLU YEL Wire side of female terminals G01818356 Fig 100 Measuring The Voltage Between PCM Connector Terminals C18 amp A8 Or A9 Turn the ignition switch OFF Jump the SCS line with the HDS Disconnect PCM connector C 22P Check for continuity between PCM connector terminal C18 and body ground Is there continuity YES Repair short in the wire between PCM connector terminal C18 and the transmission range switch then go to step 49 NO Update the PCM if it does not have the latest software or substitute a known good PCM see PCM UPDATING amp S
86. CIRCUIT NOTE e Record all freeze data and review General Troubleshooting Information see GENERAL TROUBLESHOOTING INFORMATION before you troubleshoot Wednesday March 12 2008 8 49 55 PM Page 107 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed e This code is caused by an electrical circuit problem and cannot be caused by a mechanical problem in the transmission Check ATF temperature sensor voltage with the HDS in the A T data list Does ATF temperature sensor voltage exceed 4 93 V YES Go to step 2 NO Intermittent failure the system is OK at this time Check for poor connections or loose terminals at the ATF temperature sensor and PCM Turn the ignition switch OFF Disconnect the shift solenoid harness connector Turn the ignition switch ON II Measure the voltage between shift solenoid harness connector terminal No 6 and body ground Is there about 5 V YES Go to step 6 NO Go to step 7 Wednesday March 12 2008 8 49 55 PM Page 108 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed SHIFT SOLENOID HARNESS CONNECTOR Wire side of female terminals G01818363 Fig 107 Measuring The Voltage Between Shift Solenoid Harness Connector Terminal No 6 amp Body Ground 6 Measure the voltage between shift solenoid harness connector terminals No 6 and No 7 Is there about 5 V YES Check the ATF temperature sensor and shift solenoid harness in the transmissio
87. CM see PCM UPDATING amp SUBSTITUTION FOR TESTING then recheck If the symptom indication goes away with a known good PCM replace the original PCM Wednesday March 12 2008 8 49 55 PM Page 120 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed PCM CONNECTOR A 31P cTe s 5 else nol fis r4fis t6 ralia z0 21 eranen VCC1 YEL RED Wire side of female terminals G01818374 Fig 118 Checking For Continuity Between PCM Connector Terminal A21 amp Body Ground 29 Measure the voltage between PCM connector terminals C19 and A8 or A9 Is there about 5 V YES Repair open in the wire between PCM connector terminal C19 and the mainshaft speed sensor connector then go to step 30 NO Check for loose or poor connections at PCM connector terminal C19 If the connection is OK update the PCM if it does not have the latest software or substitute a known good PCM see PCM UPDATING amp SUBSTITUTION FOR TESTING then recheck If the Wednesday March 12 2008 8 49 55 PM Page 121 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed symptom indication goes away with a known good PCM replace the original PCM PCM CONNECTORS LG2 LG1 BRN YEL BRN YEL ae FPL Teyeyr Za ohhh Viirkeh oo 7 7 NM WHT RED Wire side of female terminals G01818375 Fig 119 Measuring The Voltage Between PCM Connector Terminals C19 amp A8 Or A9 30 Clear the DTC with the HDS 31
88. COUNTERSHAFT 1ST GEAR FINAL DRIVE GEAR COUNTERSHAFT 1 FINAL DRIVEN GEAR Hydraulic pressure is applied to the 2nd clutch then the 2nd clutch engages the secondary shaft 2nd gear with the secondary shaft The mainshaft idler gear drives the secondary shaft via the idler shaft idler gear and the secondary shaft idler gear Wednesday March 12 2008 8 49 53 PM Page 32 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed The secondary shaft 2nd gear drives the countershaft 2nd gear and the countershaft Power is transmitted to the final drive gear which in turn drives the final driven gear MAINSHAFT CONVER r T i CONVERTER IDLER GEA MAINSHAFT COUNTERSHAFT ND GEAR FINAL DRIVE GEAR IDLER SHAFT jrak i eae ee Oai RES ae suas COUNTERSHAFT IDLER GEAR Sean era tae SECONDARY SHAFT Ee IDLER GEAR 2ND CLUTCH SECONDARY SHAFT SECONDARY SHAFT 2ND GEAR FINAL DRIVEN GEAR G01818283 Fig 29 2nd Gear Power Flow 3rd Gear Hydraulic pressure is applied to the 3rd clutch then the 3rd clutch engages the secondary shaft 3rd gear with the secondary shaft The mainshaft idler gear drives the secondary shaft via the idler shaft idler gear and secondary shaft idler gear The secondary shaft 3rd gear drives the countershaft 3rd gear and the countershaft Power is transmitted to the final drive gear which in turn drives the final driven gear Wednesday March 12 2008 8 49 53 PM Page 33
89. D STATUS in DTCs MENU for a pass fail test of code P1733 Did the result indicate a fail YES Repair hydraulic system related with shift valve D or replace the transmission then go to step 15 NO Intermittent failure the system is OK at this time If the tester indicates NOT COMPLETE return to step 11 and recheck Inspect A T clutch pressure control solenoid valve C see A T CLUTCH PRESSURE CONTROL SOLENOID VALVE B amp C TEST Does the A T clutch pressure control solenoid valve C work properly YES Repair hydraulic system related with shift valve D or replace the transmission then go to step 15 NO Replace A T clutch pressure control solenoid valve C see A T CLUTCH PRESSURE CONTROL SOLENOID VALVE B amp C REPLACEMENT then go to step 15 Clear the DTC with the HDS Test drive the vehicle in the D position in all five gears at speeds over 12 mph 20 km h for more than 20 seconds then slow down to a stop Retest drive the vehicle in the D position in all five gears at speeds over 12 mph 20 km h for more than 20 seconds then slow down to a stop Check the OBD STATUS in DTCs MENU for a pass fail test of code P1733 Did the result indicate a pass YES The problem has been corrected NO Return to step 1 and recheck DTC P1734 PROBLEM IN SHIFT CONTROL SYSTEM e Shift Solenoid Valves B or C Stuck OFF Wednesday March 12 2008 8 49 59 PM Page 261 2004 Acura TSX 2004 AUTOMATIC TRANSM
90. Data Link Connector DLC 3 Update the PCM according to the procedures described on the HIM label If the software in the PCM is the latest replace the PCM How to Substitute the PCM Connect the HDS to the DLC Turn the ignition switch OFF Jump the SCS line with the HDS Remove the PCM and install a known good PCM Rewrite the immobilizer code with the PCM replacement procedure in the HDS this will allow you to start the engine After completing your test reinstall the original PCM and rewrite the immobilizer code with the PCM replacement procedure in the HDS again Wednesday March 12 2008 8 49 52 PM Page 10 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed HOW TO REMOVE amp INSTALL THE PCM 1 Pull back the carpet and remove the driver s and passenger s center lower cover see PASSENGER S DASHBOARD LOWER COVER REMOVAL INSTALLATION Connect the HDS to the DLC Turn the ignition switch OFF Jump the SCS line with the HDS Disconnect PCM connectors Remove the two bolts and remove the PCM Install the PCM in the reverse order of the removal HOW TO END A TROUBLESHOOTING SESSION NOTE This procedure must be done after any troubleshooting Turn the ignition switch OFF Connect the HDS to the DLC Turn the ignition switch ON ID Clear the DTC s on the HDS screen Turn the ignition switch ON ID Start the engine in the P or N positi
91. Description Measuring Condition Terminal Voltage Number Transmission range switch Di position In the 63 position 0 V signal input In other than the D position About 5 V 3rd clutch transmission fluid pressure With ignition switch ON II About 5 V switch signal input With 3rd clutch pressure 0 V interlock control signal output With ignition switch ON II in the P position About 5 V With ignition switch ON II in other than P position 0 V Transmission range switch RVS R In IR position 0 V li In other than the R position About 5 V C13 BLU RED 2nd clutch transmission fluid pressure With ignition switch ON II About 5 V N switch signal input With 2nd clutch pressure 0 V C14 RED YEL ATF temperature sensor signal input With ignition switch ON ll 0 2 V 4 8 V Depending on ATF temperature tL With ignition switch OFF 0 V BRN WHT A T clutch pressure control solenoid With ignition switch ON Il Pulsing signal valve B control E YEL GRN ATPD Transmission range switch D position Inthe B position 0 V signal input 7 In other than the 0 position About 5 V BLU YEL ATPFWD Transmission range switch D and In the D and Da positions 0 V position signals input In other than the 0 and By positions About 5 V WHT RED Mainshaft speed sensor signal input With ignition switch ON II 0 V or about 5 V With engine at idling in position About 2 5 V Transmission range switch N position In
92. G1 BRN YEL RED WHT LG2 BRN YEL Tee UE peueH jeah pehee ahofaliahafalis Zaan Zoken A 31P C 22P Wire side of female terminals G01818413 Fig 157 Measuring The Voltage Between PCM Connector Terminals C12 amp A8 Or A9 Turn the ignition switch OFF Disconnect the transmission range switch connector Check for continuity between the No 1 and No 10 terminals at the transmission range switch The shift position must be R Is there continuity YES Check for loose or poor connections at the transmission range switch connector terminal No 1 If the connection is OK repair open in the wire between PCM connector terminal C12 and the transmission range switch then go to step 12 NO Replace the transmission range switch then go to step 12 Wednesday March 12 2008 8 49 56 PM Page 183 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed TRANSMISSION RANGE SWITCH CONNECTOR ATP RVS Termina side of male terminals G01818414 Fig 158 Checking For Continuity Between The No 1 amp No 10 Terminals At The Transmission Range Switch 12 Clear the DTC with the HDS 13 Start the engine and shift the shift lever slowly into the P R then N position 14 Check the OBD STATUS in DTCs MENU for a pass fail test of code P0812 Did the result indicate a pass YES The problem has been corrected NO Return to step 1 and recheck DTC P0815 SHORT IN TRANSMISSION GEAR SE
93. GOGGGGGSGGCGAOGCOGCAOOOO sss II III IIIB UINYNI PPD ao ood ow Fig 1 Special Tools 1 Of 2 Wednesday March 12 2008 8 53 35 PM Page 1 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed Fig 2 Special Tools 2 Of 2 GENERAL TROUBLESHOOTING INFORMATION HOW TO CHECK FOR DTCS WITH THE HONDA DIAGNOSTIC SYSTEM When the powertrain control module PCM senses an abnormality in the input or output systems the D indicator A in the gauge assembly B will usually blink Wednesday March 12 2008 8 49 51 PM Page 2 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed LESS f RS 5 6 z 4 USA stooorsmIn fs F G01818257 Fig 3 Identifying D Indicator When the data link connector DLC A located under the left end of the dash is connected to the Honda diagnostic system HDS it will indicate the diagnostic trouble code DTC when the ignition switch is turned ON ID Wednesday March 12 2008 8 49 52 PM Page 3 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed G01818258 Fig 4 Locating The Data Link Connector DLC If the D indicator or malfunction indicator lamp MIL has been reported on or if a driveability problem is suspected follow this procedure Connect the HDS to the DLC See the HDS user s manual for specific instructions Turn the ignition switch ON II select A T system and observe the DTC in the DTCs MENU on the
94. HT RED LG1 BRN YEL Wire side of female terminals G01818370 Fig 114 Measuring The Voltage Between Mainshaft Speed Sensor Connector Terminals No 2 amp No 3 20 Connect the mainshaft speed sensor connector 21 Measure the voltage between PCM connector terminals C19 and A8 or A9 Is the voltage 0 V or about 5 V YES Go to step 22 NO Replace the mainshaft speed sensor see MAINSHAFT SPEED SENSOR Wednesday March 12 2008 8 49 55 PM Page 117 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed REPLACEMENT then go to step 30 PCM CONNECTORS LG2 LG1 BRN YEL BRN YEL 1lelsl4js fe 7 ile 9 12 ILI s 4 s 6 7 DAMETCOMODAE E ea esanian MUQERTAA NM WHT RED Wire side of female terminals G01818371 Fig 115 Measuring The Voltage Between PCM Connector Terminals C19 amp A8 Or A9 22 Shift to the P position Start the engine and let it idle 23 With the engine idling measure the voltage between PCM connector terminals C19 and A8 or A9 Is there 1 5 V 3 5 V YES Update the PCM if it does not have the latest software or substitute a known good PCM see PCM UPDATING amp SUBSTITUTION FOR TESTING then recheck If the symptom indication goes away with a known good PCM replace the original PCM NO Replace the mainshaft speed sensor see MAINSHAFT SPEED SENSOR REPLACEMENT then go to step 30 Wednesday March 12 2008 8 49 55 PM Page 118 2004 Acura TSX
95. ID VALVE B _ A T CLUTCH PRESSURE CONTROL 96 TORQUE CONVERTER SOLENOID VALVE C A T CLUTCH PRESSURE CONTROL 97 TORQUE CONVERTER SOLENOID VALVE C A T CLUTCH PRESSURE CONTROL 99 SUCTION SOLENOID VALVEC i A T CLUTCH PRESSURE CONTROL X DRAIN SOLENOID VALVE C A T CLUTCH PRESSURE CONTROL HIGH POSITION DRAIN SOLENOID VALVE C _ SHIFT SOLENOID VALVE A AIR DRAIN G01818313 Fig 57 Distribution Of Hydraulic Pressure At The Ports N Position The PCM controls the shift solenoid valves The conditions of the shift solenoid valves and positions of the shift valves are as follows e Shift solenoid valve A OFF Shift valve A stays on right side Shift solenoid valve B ON Shift valve B moves to left side Shift solenoid valve C ON Shift valve C moves to left side Shift solenoid valve D OFF Shift valve D stays on left side Shift solenoid valve E OFF Shift valve E stays on left side Line pressure 1 flows to the shift solenoid valves and the A T clutch pressure control solenoid valve A and changes to A T clutch pressure control solenoid valve A pressure 55 at the A T clutch pressure control solenoid valve A A T clutch pressure control solenoid valve A pressure 55 becomes line pressure 1B at the shift valve A and stops at the manual valve Under this condition hydraulic pressure is not applied to the clutches Wednesday March 12 2008 8 49 54 PM Page 5
96. IONS Diagnosis MCTA 5 Speed To TORQUE CONVERTER ToLUBRICATION lt q From ATF PUMP G01818309 Fig 53 Regulator Valve Operation Increases in hydraulic pressure according to torque are performed by the regulator valve using stator torque reaction The stator shaft is splined with the stator in the torque converter and its arm end contacts the regulator spring cap When the vehicle is accelerating or climbing Torque Converter Range stator torque reaction acts on the stator shaft and the stator arm pushes the regulator spring cap in the direction of the arrow in proportion to the reaction The stator reaction spring compresses and the regulator valve moves to increase the line pressure which is regulated by the regulator valve The line pressure reaches its maximum when the stator torque reaction reaches its maximum Wednesday March 12 2008 8 49 53 PM Page 52 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed REGULATOR SPRING CAP STATOR SHAFT TATOR SHAFT ARM END G01818310 Fig 54 Locating Regulator Valve Servo Body The servo body contains the servo valve the shift valve D accumulators for 2nd 4th and 5th and shift solenoid valves for A B C D and E SHIFT SOLENOID SHIFT SOLENOID VALVE A a VALVE D SHIFT SOLENOID Aq on SHIFT SOLENOID VALVE B y VALVE E _ SHIFT SOLENOID VALVE C SERVO BODY SH SERVO VALVE SHIFT VALVE D G01818311 Fig 55 Ide
97. ISSIONS Diagnosis MCTA 5 Speed e Shift Valves B or C Stuck NOTE Record all freeze data and review General Troubleshooting Information see GENERAL TROUBLESHOOTING INFORMATION before you troubleshoot 1 Warm up the engine to normal operating temperature the radiator fan comes on Check to be sure that the transmission is filled to the proper level and check for fluid leaks Drain the ATF see DRAINING amp REFILLING through a strainer Inspect the ATF and strainer for metal debris or burnt fluid Has the ATF deteriorated YES Replace ATF see DRAINING amp REFILLING and go to step 4 NO Go to step 8 Clear the DTC with the HDS Test drive the vehicle in the D position in all five gears at speeds over 12 mph 20 km h for more than 20 seconds then slow down to a stop Retest drive the vehicle in the D position in all five gears at speeds over 12 mph 20 km h for more than 20 seconds then slow down to a stop Check the OBD STATUS in DTCs MENU for a pass fail test of code P1734 Did the result indicate a fail YES Go to step 8 NO Intermittent failure the system is OK at this time if the tester indicates NOT COMPLETE return to step 5 and recheck Clear the DTC with the HDS 9 Select SHIFT SOL TEST in MISC TEST MENU then carry out A T SHIFT SOL B test in SHIFT SOL TEST MENU with the HDS Is a clicking sound heard YES Go to step 10 NO Replace shift solenoid valve B see SHIFT
98. LECTION SWITCH UPSHIFT SWITCH CIRCUIT OR TRANSMISSION GEAR SELECTION SWITCH UPSHIFT SWITCH STUCK ON NOTE e Record all freeze data and review General Troubleshooting Information see GENERAL TROUBLESHOOTING INFORMATION before you troubleshoot e This code is caused by an electrical circuit problem and cannot be caused by a mechanical problem in the transmission Wednesday March 12 2008 8 49 56 PM Page 184 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed 1 Turn the ignition switch ON ID Shift to the P position Verify the transmission gear selection switch upshift switch inputs with the HDS in the A T data list Is UPSHIFT SW ON YES Go to step 4 NO Intermittent failure the system is OK at this time Check the WHT BLU wire for an intermittent short to ground between the transmission gear selection switch and PCM Turn the ignition switch OFF Disconnect the transmission gear selection switch connector Turn the ignition switch ON ID Verify the transmission gear selection switch upshift switch inputs with the HDS in the A T data list Is UPSHIFT SW ON YES Go to step 8 NO Replace the transmission gear selection switch see TRANSMISSION GEAR SELECTION SWITCH REPLACEMENT then go to step 12 Turn the ignition switch OFF Jump the SCS line with the HDS Disconnect PCM connector D 17P Check for continuity between transmission gear selection switch connector terminal No
99. LEVER P POSITION SHIFT LOCK STOP SHIFT LOCK SOLENOID G01818336 Fig 80 Shift Lock Reverse Lock Mechanism When the brake pedal is released or the accelerator is pressed the shift lock solenoid stays OFF and the shift lock stop locks the shift lever in the P position Wednesday March 12 2008 8 49 54 PM Page 77 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed SHIFT LOCK STOP G01818337 Fig 81 Shift Lock Stop Locking The Shift Lever When the shift lever is shifted to the R position from N the shift lock solenoid is turned ON and the shift lock solenoid plunger is retracted to release the reverse lock stop This allows the shift lever to be moved to the R position Wednesday March 12 2008 8 49 54 PM Page 78 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed N POSITION REVERSE LOCK STOP R POSITION SHIFT LOCK SOLENOID G01818338 Fig 82 Shift Lock Solenoid Plunger Retracted To Release The Reverse Lock Stop If the conditions acceleration at 6 mph 10 km h or less and deceleration at 5 mph 8 km h or less in the D position for turning ON the solenoid are not met the shift lock solenoid stays OFF and the reverse lock stop locks the shift lever in the N position Wednesday March 12 2008 8 49 54 PM Page 79 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed N POSITION REVERSE LOCK STOP G01818339 Fig 83 Reve
100. M connector A 31P and mainshaft speed sensor connector Check for continuity between PCM connector terminals A8 and body ground and between A9 and body ground Is there continuity YES Go to step 10 NO Repair open in the wires between PCM connector terminals A8 A9 and ground G 101 or repair poor ground G101 then go to step 30 Wednesday March 12 2008 8 49 55 PM Page 112 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed PCM CONNECTOR A 31P LG2 BRN YEL G1 BRN YEL Wire side of female terminals G01818366 Fig 110 Checking For Continuity Between PCM Connector Terminals A8 amp Body Ground amp Between A9 amp Body Ground Connect PCM connector A 31P Turn the ignition switch ON ID Measure the voltage between mainshaft speed sensor connector terminal No 1 and body ground Is there about 5 V YES Go to step 13 NO Go to step 24 Wednesday March 12 2008 8 49 55 PM Page 113 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed MAINSHAFT SPEED SENSOR CONNECTOR Wire side of female terminals G01818367 Fig 111 Measuring The Voltage Between Mainshaft Speed Sensor Connector Terminal No 1 amp Body Ground 13 Turn the ignition switch OFF 14 Disconnect PCM connector C 22P 15 Check for continuity between mainshaft speed sensor connector terminal No 2 and body ground Wednesday March 12 2008 8 49 55 PM Page 114
101. MISSION FLUID PRESSURE SWITCH SHIFT SOLENOID VALVE C SHIFT SOLENOID VALVE B A T CLUTCH PRESSURE CONTROL SOLENOID VALVE C A T CLUTCH PRESSURE CONTROL SOLENOID VALVE B SHIFT SOLENOID aif VALVE E SHIFT SOLENOID SHIFT SOLENOID VALVE D ATF TEMPERATURE SENSOR G01818289 Fig 35 Locating Electronic Controls SHIFT CONTROL The PCM instantly determines which gear should be selected by various signals sent from sensors and switches and it actuates the shift solenoid valves A B C D and E to control shifting Also a grade logic control system has been adopted to control shifting in D and D positions The PCM compares actual driving conditions with memorized driving conditions based on the input from the throttle position sensor the engine coolant temperature sensor the barometric pressure sensor the brake pedal position Wednesday March 12 2008 8 49 53 PM Page 39 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed switch signal and the shift lever position signal to control shifting while the vehicle is ascending or descending a slope Gauge Control Module Engine RPM Signal Engine RPM control Transmission Gear i Selection Switch Signal San Shift position Ei slax e control Transmission Range R Switch Signal Fail B tiA A T Gear Position Indicator a is Driving indicator ix ift Position i of ATF Throttle Position Temperature Sensor Signal Shift Solenoid IH Valve A Ma
102. NOT COMPLETE return to step 14 and recheck Clear the DTC with the HDS Test drive the vehicle in the D position in all five gears at speeds over 12 mph 20 km h for more than 20 seconds then slow down to a stop Retest drive the vehicle in the D position in all five gears at speeds over 12 mph 20 km h for more than 20 seconds then slow down to a stop Check the OBD STATUS in DTCs MENU for a pass fail test of code P1732 Did the result indicate a pass YES The problem has been corrected NO Return to step 1 and recheck DTC P1733 PROBLEM IN SHIFT CONTROL SYSTEM e Shift Solenoid Valve D Stuck ON e Shift Valve D Stuck e A T Clutch Pressure Control Solenoid Valve C Stuck OFF NOTE Record all freeze data and review General Troubleshooting Information see GENERAL TROUBLESHOOTING INFORMATION before you troubleshoot Warm up the engine to normal operating temperature the radiator fan comes on Check to be sure that the transmission is filled to the proper level and check for fluid leaks Drain the ATF see DRAINING amp REFILLING through a strainer Inspect the ATF and strainer for metal debris or burnt fluid Has the ATF deteriorated YES Replace ATF see DRAINING amp REFILLING and go to step 4 NO Go to step 8 4 Clear the DTC with the HDS Test drive the vehicle in the D position in all five gears at speeds over 12 mph 20 km h for more than 20 seconds then slow down to a stop
103. NS Diagnosis MCTA 5 Speed Allow the front wheels to rotate freely Warm up the engine the radiator fan comes on then stop it and connect the HDS to the DLC Connect the oil pressure gauges to the line pressure inspection hole A and 4th clutch pressure inspection hole B Do not allow dust or other foreign particles to enter the holes while connecting the gauges A T OIL PRESSURE GAUGE SET W PANEL 07406 0020400 or 07406 0020401 G01818467 Fig 211 Identifying Oil Pressure Gauge Wednesday March 12 2008 8 50 00 PM Page 270 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed A T PRESSURE A T PRESSURE HOSE 2210 mm HOSE ADAPTER O7MAJ PY4011A 07 MAJ PY40120 4 Required 4 Required G01818468 Fig 212 Identifying Oil Pressure Gauge Hose amp Adapter Wednesday March 12 2008 8 50 00 PM Page 271 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed CY G01818469 Fig 213 Connecting The Oil Pressure Gauges To The Line Pressure Inspection Hole amp 4th Clutch Pressure Inspection Hole Remove the intake air duct and air cleaner housing and connect the oil pressure gauges to the 2nd clutch pressure inspection hole C Then temporarily install the air cleaner housing and intake air duct Wednesday March 12 2008 8 50 00 PM Page 272 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed G01818470 Fig 214 Connecting The Oil Pre
104. OLENOID VALVE B CIRCUIT NOTE e Record all freeze data and review General Troubleshooting Information see GENERAL TROUBLESHOOTING INFORMATION before you troubleshoot e This code is caused by an electrical circuit problem and cannot be caused by a mechanical problem in the transmission 1 Clear the DTC with the HDS 2 Test drive the vehicle for several minutes in Ist 2nd and 3rd gears in the D position Wednesday March 12 2008 8 49 58 PM Page 234 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed Check that DTC P0977 recurs Is DTC P0977 indicated YES Go to step 7 NO Go to step 4 Select SHIFT SOL TEST in MISC TEST MENU then carry out A T SHIFT SOL B test in SHIFT SOL TEST MENU with the HDS Test drive the vehicle for several minutes in Ist 2nd and 3rd gears in the D position Check the OBD STATUS in DTCs MENU for a pass fail test of code P0977 Did the result indicate a fail YES Go to step 7 NO Intermittent failure the system is OK at this time Check for poor connections or loose terminals at the shift solenoid valve B and PCM If the tester indicates NOT COMPLETE return to step 4 and recheck Turn the ignition switch OFF Jump the SCS line with the HDS 9 Disconnect PCM connectors A 31P and C 22P Measure the resistance between PCM connector terminals C4 and A8 or A9 Is there 12 25 ohm YES Check for loose or poor connections at PCM connector terminal C4
105. ON Transmission gear selection switch short or stuck ON see page 14 140 P0958 24 4 Blinks ON Transmission gear selection switch open or stuck OFF see page 14 142 P0962 16 3 4 Blinks ON A T clutch pressure control solenoid valve A open short see page 14 144 P0963 16 4 Blinks ON __ A T clutch pressure control solenoid valve A P0966 23 3 Blinks ON P0967 23 4 P0970 29 3 A T clutch pressure control solenoid valve B open short see page 14 146 see page 14 148 Blinks ON Blinks ON A T clutch pressure control solenoid valve B A T clutch pressure control solenoid valve C open short see page 14 150 see page 14 152 P0971 29 4 Blinks ON A T clutch pressure control solenoid valve C see page 14 154 P0973 7 3 G01818266 Blinks ON Shift solenoid valve A short Fig 12 DTC Troubleshooting Index 2 Of 3 see page 14 156 Wednesday March 12 2008 8 49 52 PM 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed Detection Item P0974 7 4 P0976 8 3 P0977 8 4 7 Page Shift solenoid valve A open Shift solenoid valve B short Shift solenoid valve B open see page 14 158 _ see page 14 160 page 14 162 P0979 22 3 Shift solenoid valve C short P0
106. PCM UPDATING amp SUBSTITUTION FOR TESTING then recheck If the symptom indication goes away with a known good PCM replace the original PCM NO Go to step 11 Wednesday March 12 2008 8 49 59 PM Page 247 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed PCM CONNECTORS SH D GRN RED LG2 BRN YEL LG1 BRN YEL spe la elf A ehojuhznshas ADEE A 31P C 22P Wire side of female terminals G01818456 Fig 200 Measuring The Resistance Between PCM Connector Terminals C5 amp A8 Or A9 11 Disconnect the shift solenoid harness connector at the transmission housing 12 Measure the resistance between shift solenoid harness connector terminal No 8 and body ground Is there 12 25 ohm YES Repair open in the wire between PCM connector terminal C5 and the shift solenoid harness connector then go to step 13 NO Check shift solenoid valve D and check for an open in the shift solenoid harness in the transmission see SHIFT SOLENOID VALVE TEST Replace shift solenoid valve D and or shift solenoid harness then go to step 13 Wednesday March 12 2008 8 49 59 PM Page 248 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed SHIFT SOLENOID HARNESS CONNECTOR Terminal side of male terminals G01818457 Fig 201 Measuring The Resistance Between Shift Solenoid Harness Connector Terminal No 8 amp Body Ground 13 Clear the DTC with the HDS 14 Start the eng
107. RANGE SWITCH CONNECTOR PG BLK Wire side of female terminals G01818358 Fig 102 Checking For Continuity Between Transmission Range Switch Connector Terminal No 10 amp Body Ground 20 Turn the ignition switch ON II 21 Measure the voltage between transmission range switch connector terminals No 5 and No 10 Is there voltage YES Go to step 22 NO Repair open in the wire between the transmission range switch and PCM connector terminal C18 then go to step 24 Wednesday March 12 2008 8 49 55 PM Page 101 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed TRANSMISSION RANGE SWITCH CONNECTOR ATP FWD YEL RED PG BLK Wire side of female terminals G01818359 Fig 103 Measuring The Voltage Between Transmission Range Switch Connector Terminals No 5 amp No 10 22 Measure the voltage between transmission range switch connector terminals No 8 and No 10 Is there voltage YES Go to step 23 NO Repair open in the wire between the transmission range switch and PCM connector terminal C17 then go to step 24 Wednesday March 12 2008 8 49 55 PM Page 102 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed TRANSMISSION RANGE SWITCH CONNECTOR ATP D PNK PG BLK Wire side of female terminals G01818360 Fig 104 Measuring The Voltage Between Transmission Range Switch Connector Terminals No 8 amp No 10 23 Measure the voltage bet
108. REFILLING and go to step 4 NO Go to step 8 Clear the DTC with the HDS Test drive the vehicle in the D position in all five gears at speeds over 12 mph 20 km h for more than 20 seconds then slow down to a stop Retest drive the vehicle in the D position in all five gears at speeds over 12 mph 20 km h for more than 20 seconds then slow down to a stop Check the OBD STATUS in DTCs MENU for a pass fail test of code P0752 Did the result indicate a fail YES Go to step 8 NO Intermittent failure the system is OK at this time If the tester indicates NOT COMPLETE return to step 5 and recheck Clear the DTC with the HDS Select SHIFT SOL TEST in MISC TEST MENU then carry out A T SHIFT SOL A test in SHIFT SOL TEST MENU with the HDS Is a clicking sound heard YES Go to step 10 NO Replace shift solenoid valve A see SHIFT SOLENOID VALVE REPLACEMENT then go to step 13 Test drive the vehicle in the D position in all five gears at speeds over 12 mph 20 km h for more than 20 seconds then slow down to a stop Retest drive the vehicle in the D position in all five gears at speeds over 12 mph 20 km h for more than 20 seconds then slow down to a stop Check the OBD STATUS in DTCs MENU for a pass fail test of code P0752 Did the result indicate a fail YES Repair shift valve A or replace the transmission then go to step 13 NO Intermittent failure the system is OK at this time I
109. SOR CONNECTOR NM WHT RED LG1 BRN YEL Wire side of female terminals G01818380 Fig 124 Measuring The Voltage Between Mainshaft Speed Sensor Connector Terminals No 2 amp No 3 20 Connect the mainshaft speed sensor connector 21 Measure the voltage between PCM connector terminals C19 and A8 or A9 Is there 0 V or about 5 V YES Go to step 22 NO Replace the mainshaft speed sensor see MAINSHAFT SPEED SENSOR Wednesday March 12 2008 8 49 55 PM Page 128 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed REPLACEMENT then go to step 30 PCM CONNECTORS LG2 LG1 BRN YEL BRN YEL aaa P 13 12 13 14 esjzalt 26 26 7 25 20 3 yahshisi NM WHT RED Wire side of female terminals G01818381 Fig 125 Measuring The Voltage Between PCM Connector Terminals C19 amp A8 Or A9 22 Shift to the P position Start the engine and let it idle 23 With the engine idling measure the voltage between PCM connector terminals C19 and A8 or A9 Is there 1 5 V 3 5 V YES Update the PCM if it does not have the latest software or substitute a known good PCM see PCM UPDATING amp SUBSTITUTION FOR TESTING then recheck If the symptom indication goes away with a known good PCM replace the original PCM NO Replace the mainshaft speed sensor see MAINSHAFT SPEED SENSOR REPLACEMENT then go to step 30 Wednesday March 12 2008 8 49 55 PM Page 129 2004 Acura TSX 2
110. SSURE CONTROL SOLENOID VALVE B CONNECTOR Terminal side of male terminals G01818432 Fig 176 Measuring A T Clutch Pressure Control Solenoid Valve B Resistance At The Solenoid Connector 9 Check for continuity between A T clutch pressure control solenoid valve B connector terminal No 2 and body ground Is there continuity YES Go to step 10 NO Repair open in the wire between the A T clutch pressure control solenoid valve B and ground G101 or repair poor ground G101 then go to step 12 Wednesday March 12 2008 8 49 57 PM Page 213 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed A T CLUTCH PRESSURE CONTROL SOLENOID VALVE B CONNECTOR BLK Wire side of female terminals G01818433 Fig 177 Checking For Continuity Between A T Clutch Pressure Control Solenoid Valve B Connector Terminal No 2 amp Body Ground 10 Turn the ignition switch ON II 11 Measure the voltage between A T clutch pressure control solenoid valve B connector terminals No 1 and No 2 Is there about 11 V as the ignition switch is turned to the ON ID position YES Update the PCM if it does not have the latest software or substitute a known good PCM see PCM UPDATING amp SUBSTITUTION FOR TESTING then recheck If the symptom indication goes away with a known good PCM replace the original PCM NO Repair open or short in the wire between PCM connector terminal C15 and A T clutch Wed
111. T IN TRANSMISSION GEAR SELECTION SWITCH DOWNSHIFT SWITCH CIRCUIT OR TRANSMISSION GEAR SELECTION SWITCH DOWNSHIFT SWITCH STUCK ON Wednesday March 12 2008 8 49 57 PM Page 186 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed e Record all freeze data and review General Troubleshooting Information see GENERAL TROUBLESHOOTING INFORMATIONGENERAL TROUBLESHOOTING INFORMATION before you troubleshoot e This code is caused by an electrical circuit problem and cannot be caused by a mechanical problem in the transmission Turn the ignition switch ON ID Shift to the P position Verify the transmission gear selection switch downshift switch inputs with the HDS in the A T data list Is DOWNSHIFT SW ON YES Go to step 4 NO Intermittent failure the system is OK at this time Check the ORN wire for an intermittent short to ground between the transmission gear selection switch and PCM Turn the ignition switch OFF Disconnect the transmission gear selection switch connector Turn the ignition switch ON ID Verify the transmission gear selection switch downshift switch inputs with the HDS in the A T data list Is DOWNSHIFT SW ON YES Go to step 8 NO Replace the transmission gear selection switch see Transmission Gear Selection Switch Replacement then go to step 12 Turn the ignition switch OFF Jump the SCS line with the HDS Disconnect PCM connector D 17P Check for cont
112. TC with the HDS Test drive the vehicle for several minutes in the D position in all five gears Check the OBD STATUS in DTCs MENU for a pass fail test of code P0711 Did the result indicate a pass YES The problem has been corrected NO Return to step 1 and recheck Wednesday March 12 2008 8 49 55 PM Page 105 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed DTC P0712 SHORT IN ATF TEMPERATURE SENSOR CIRCUIT NOTE e Record all freeze data and review General Troubleshooting Information see GENERAL TROUBLESHOOTING INFORMATION before you troubleshoot e This code is caused by an electrical circuit problem and cannot be caused by a mechanical problem in the transmission Check ATF temperature sensor voltage with the HDS in the A T data list Is ATF temperature sensor voltage 0 07 V or less YES Go to step 2 NO Intermittent failure the system is OK at this time Check for intermittent short in the wires between the ATF temperature sensor and PCM Disconnect the shift solenoid harness connector at the shift solenoid valve cover Check ATF temperature sensor voltage with the HDS Is ATF temperature sensor voltage 0 07 V or less YES Go to step 4 NO Check for a short to ground in the shift solenoid harness wire in the transmission see ATF TEMPERATURE SENSOR TEST amp REPLACEMENT If the wire is OK replace ATF temperature sensor see ATF TEMPERATURE SENSOR TEST amp REPLACEMENT
113. TOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed NO Go to step 16 COUNTERSHAFT SPEED SENSOR CONNECTOR JE NC BLK BLU Wire side of female terminals G01818401 Fig 145 Checking For Continuity Between Countershaft Speed Sensor Connector Terminal No 2 amp Body Ground 16 Check for continuity between countershaft speed sensor connector terminal No 3 and body ground Is there continuity YES Go to step 17 NO Repair open in the wire between the countershaft speed sensor connector and ground G101 then go to step 30 Wednesday March 12 2008 8 49 56 PM Page 152 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed COUNTERSHAFT SPEED SENSOR CONNECTOR 2 3 LG2 BRN YEL Wire side of female terminals G01818402 Fig 146 Checking For Continuity Between Countershaft Speed Sensor Connector Terminal No 3 amp Body Ground 17 Reconnect PCM connector A 31P 18 Turn the ignition switch ON ID 19 Measure the voltage between countershaft speed sensor connector terminals No 2 and No 3 Is there about 5 V YES Go to step 20 NO Go to step 29 Wednesday March 12 2008 8 49 56 PM Page 153 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed COUNTERSHAFT SPEED SENSOR CONNECTOR NC BLK BLU LG BRN YEL Wire side of female terminals G01818403 Fig 147 Measuring The Voltage Between Countershaft Speed Sensor Connector Terminals No 2 a
114. TOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed the switch to the specified torque 5 Connect the connector securely 6 Install the intake air duct 3RD CLUTCH TRANSMISSION FLUID PRESSURE SWITCH REPLACEMENT Disconnect the battery negative terminal then disconnect the battery positive terminal Remove the battery hold down bracket then remove the battery cover battery and battery tray Remove the intake air duct and air cleaner housing Loosen the two bolts securing the battery base from under the vehicle and remove the two bolts securing the battery base in the engine compartment then remove the battery base Disconnect the connector from the 3rd clutch transmission fluid pressure switch A then remove the switch Wednesday March 12 2008 8 50 01 PM Page 307 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed G01818499 Fig 243 Removing 3rd Clutch Transmission Fluid Pressure Switch Make sure there is no water oil dust or foreign particles inside the connector Install the 3rd clutch new transmission fluid pressure switch with a new sealing washer B and tighten the switch to the specified torque Connect the connector securely 9 Install the battery base then install the air cleaner housing and intake air duct Install the battery tray battery and battery cover then secure the battery with its hold down bracket Wednesday March 12 2008 8 50 01 PM Page 308 2004 Ac
115. TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed PCM CONNECTOR C 22P 1 2 Lis 4 5 6 7 oo ep A hsh rA ATP D YEL GRN ss Wire side of female terminals G01818353 Fig 97 Checking For Continuity Between PCM Connector Terminal C17 amp Body Ground 37 Shift to all positions other than D 38 Measure the voltage between PCM connector terminals C9 and A8 or A9 Is there about 5 V Wednesday March 12 2008 8 49 54 PM Page 94 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed YES Go to step 43 NO Go to step 39 PCM CONNECTORS LG2 LG1 BRN YEL BRN YEL 1 2 iL 3 4 5 6 7 ZODGEEG arheo ATP D3 RED Wire side of female terminals G01818354 Fig 98 Measuring The Voltage Between PCM Connector Terminals C9 amp A8 Or A9 Turn the ignition switch OFF Jump the SCS line with the HDS Disconnect PCM connector C 22P Check for continuity between PCM connector terminal C9 and body ground Is there continuity YES Repair short in the wire between PCM connector terminal C9 and the transmission range switch then go to step 49 NO Update the PCM if it does not have the latest software or substitute a known good PCM see PCM UPDATING amp SUBSTITUTION FOR TESTING then recheck If the symptom indication goes away with a known good PCM replace the original PCM Wednesday March 12 2008 8 49 54 PM Page 95 2004 Acura TSX 2004 AUTOMATI
116. UBSTITUTION FOR TESTING then recheck If the symptom indication goes away with a known good PCM replace the original PCM Wednesday March 12 2008 8 49 54 PM Page 97 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed PCM CONNECTOR C 22P UE eos 9 pon 12 13 14 15 Aiehslel 77 ATP FWD BLU YEL Wire side of female terminals G01818357 Fig 101 Checking For Continuity Between PCM Connector Terminal C18 amp Body Ground 49 Clear the DTC with the HDS 50 Move the shift lever to each position and check the OBD STATUS in DTCs MENU for a pass fail test of code P0705 Did the result indicate a pass YES The problem has been corrected NO Return to step 1 and recheck Wednesday March 12 2008 8 49 54 PM Page 98 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed DTC P0706 OPEN IN TRANSMISSION RANGE SWITCH CIRCUIT NOTE e Record all freeze data and review General Troubleshooting Information see GENERAL TROUBLESHOOTING INFORMATION before you troubleshoot e This code is caused by an electrical circuit problem and cannot be caused by a mechanical problem in the transmission 1 Clear the DTC with the HDS Raise the front of the vehicle make sure it is securely supported and allow the front wheels to rotate freely Start the engine drive the vehicle in the D position until the vehicle speed reaches 35 mph 56 km h then slow down and sto
117. Wire Color Signal Description Measuring Conditions Terminal Voltage Number E2 YEL BLK SLS Shift lock solenoid control With ignition switch ON Il in the P position brake pedal ground side _ pressed and accelerator released 0 V _ BLK YEL Power supply circuit for solenoid With ignition switch ON II Battery voltage vaes _ i With ignition switch OFF 0V o E11 WHT I F CAN communication with network With ignition switch ON Il Pulsing signal E22 WHT BLK Brake pedal position switch signal Brake pedal pressed Battery voltage input Brake pedal released 0 V 23 BLU LINE Communication line PCM to DLC __ With ignition switch ON il Battery voltage E24 RED ___ F CAN communication with network __ With ignition switch ON Il Pulsing signal E29 BRN Detects service check signal With the SCS shorted with the HDS About 0 V With the SCS open About 5 V G01818304 Fig 48 PCM Connector E 31P Inputs amp Outputs HYDRAULIC CONTROLS Valve Bodies The valve body includes the main valve body the regulator valve body and the servo body The ATF pump is driven by splines on the left end of the torque converter which is attached to the engine Fluid flows through the regulator valve to maintain specified pressure through the main valve body to the manual valve directing pressure to the shift valves and to each of the clutches via the solenoid valves The shift solenoid valves A B C D and E
118. a pass fail test of code P1734 Did the result indicate a pass YES The problem has been corrected NO Return to step 1 and recheck ROAD TEST 1 Warm up the engine to normal operating temperature the radiator fan comes on Apply the parking brake and block both rear wheels Start the engine then shift to the D position while pressing the brake pedal Press the accelerator pedal and release it suddenly The engine should not stall Repeat step 2 in the D position Connect the HDS to the DLC A and go to the A T data list Wednesday March 12 2008 8 49 59 PM Page 263 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed A G01818462 Fig 206 Connecting The HDS To The DLC Test drive the vehicle on a flat road in the D position Check for abnormal noise and clutch slippage While driving check that the shift points occur at the proper speeds by monitoring the throttle position sensor voltage with the HDS and comparing your shift point speeds and voltage to those in the table The throttle position sensor voltage represents the throttle opening Wednesday March 12 2008 8 49 59 PM Page 264 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed Throttle position sensor voltage 0 8 V 1st 2nd 9 12 mph 15 19 km h 2nd gt 3rd 18 21 mph 28 33 km h 3rd 4th 27 32 mph 44 51 km h 4th gt 5th 39 44 mph 63 70 km h Lock up
119. acket base Install the switch connector on the bracket base then connect the connector Install the shift lever assembly see SHIFT LEVER A T GEAR POSITION INDICATOR COMPONENT LOCATION INDEX Wednesday March 12 2008 8 50 01 PM Page 319 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed A T GEAR POSITION INDICATOR ond O c H zZ Q O z lt x pm x W O a MODULE PCM TRANSMISSION RANGE SWITCH G01818621 Fig 253 Locating A T Gear Position Indicator Components CIRCUIT DIAGRAM Wednesday March 12 2008 8 50 01 PM 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed UNDER DASH UNDER HOOD FUSE RELAY BOX IGNITION SWITCH FUSE RELAY BOX Y No 22 1100A No 23 SOA Moona POWERTRAIN CONTROL MODULE PCM GAUGE CONTROL MODULE CAN CONTROLLER TRANSMISSION RANGE SWITCH G01818622 Fig 254 A T Gear Position Indicator Wiring Diagrams A T GEAR POSITION INDICATOR CIRCUIT TROUBLESHOOTING Symptom A T gear position indicator does not indicate the shift lever position the D indicator does not blink and no transmission range switch DTCs are indicated 1 Turn the ignition switch ON ID Wednesday March 12 2008 8 50 01 PM Page 321 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed 2 Measure the voltage between gauge control module connector terminal B11 and body grou
120. agnosis MCTA 5 Speed GENERAL TROUBLESHOOTING INFORMATION before you troubleshoot Warm up the engine to normal operating temperature the radiator fan comes on Check to be sure that the transmission is filled to the proper level and check for fluid leaks Drain the ATF see DRAINING amp REFILLING through a strainer Inspect the ATF and strainer for metal debris or burnt fluid Has the ATF deteriorated YES Replace ATF see DRAINING amp REFILLING and test drive the vehicle under the same conditions as those indicated by the freeze data then recheck NO Go to step 4 Measure the line pressure see PRESSURE TEST Is the line pressure within service limits YES Go to step 5 NO Repair the ATF pump and regulator valve or replace the transmission Measure the Sth clutch pressure see PRESSURE TEST Is the 5th clutch pressure within service limits YES Go to step 6 NO Shift valves A B and or Dare stuck Repair these valves and hydraulic circuit or replace the transmission Clear the DTC with the HDS Test drive the vehicle for several minutes under the same conditions as those indicated by the freeze data or drive in the 5th gear in the D position at speeds over 10 mph 16 km h for 20 seconds Check the OBD STATUS in DTCs MENU for a pass fail test of code P0735 Did the result indicate a fail YES Repair the 5th clutch or replace the transmission NO Intermittent failure the syste
121. alve defective Lock up control valve defective Check the D indicator and check for loose connectors Inspect the transmission range switch for operation Check for a loose shift cable at the shift lever and the transmission control shaft Check for a loose shift cable at the shift lever and the transmission control shaft Check the park pawl spring installation and the park lever spring installation If installation is incorrect install the spring correctly Make sure that the park lever stop is not installed upside down Check the distance between the park pawl shaft and park lever roller pin If the distance is out of tolerance adjust the distance with the park lever stop Check the D indicator and check for loose connectors Inspect the solenoid valve filter gasket for wear and damage and inspect the solenoid valves for seizure Replace the torque converter Check the D indicator and check for loose connectors Inspect the solenoid valve filter gasket for wear and damage and inspect the solenoid valves for seizure Replace the torque converter Fig 23 Symptom Troubleshooting Index 10 Of 11 Wednesday March 12 2008 8 49 53 PM Page 24 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed Lock up clutch does not engage A T gear position indicator does not indicate Shift solenoid valve E defective A T clutch pressure control solenoid valve A defective Mainshaft speed sensor d
122. alve A work properly YES Repair hydraulic system related with shift valve B and E or replace the transmission then go to step 11 NO Replace A T clutch pressure control solenoid valve A see A T CLUTCH PRESSURE CONTROL SOLENOID VALVE A REPLACEMENT then go to step 11 Clear the DTC with the HDS Test drive the vehicle in the D position in all five gears at speeds over 12 mph 20 km h for more than 20 seconds Slow down to a stop Retest drive the vehicle in the D position in all five gears at speeds over 12 mph 20 km h for more than 20 seconds then slow down to a stop Check the OBD STATUS in DTCs MENU for a pass fail test of code P0747 Did the result indicate a pass YES The problem has been corrected NO Return to step 1 and recheck DTC P0752 SHIFT SOLENOID VALVE A STUCK ON NOTE Record all freeze data and review General Troubleshooting Information see GENERAL TROUBLESHOOTING INFORMATION before you troubleshoot Wednesday March 12 2008 8 49 56 PM Page 169 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed 1 Warm up the engine to normal operating temperature the radiator fan comes on Check to be sure that the transmission is filled to the proper level and check for fluid leaks Drain the ATF see DRAINING amp REFILLING through a strainer Inspect the ATF and strainer for metal debris or burnt fluid Has the ATF deteriorated YES Replace ATF see DRAINING amp
123. ar and countershaft 4th gear Check the ATF level and check the ATF cooler lines for leakage and loose connections If necessary flush the ATF cooler lines Check for a loose shift cable at the shift lever and the transmission control shaft Improper alignment of ATF pump and torque converter housing may cause ATF pump seizure The symptoms are mostly an rpm related ticking noise or a high pitched squeak Check the ATF strainer for debris If the ATF strainer is clogged with particles of steel or aluminum inspect the ATF pump If the ATF pump is OK find the damaged components that caused debris and no cause for contamination is found replace the torque converter Fig 16 Symptom Troubleshooting Index 3 Of 11 Wednesday March 12 2008 8 49 53 PM 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed Probable cause s Poor acceleration 2nd clutch defective Check the 2nd clutch pressure flares on starting off in the D D3 R and M positions Stall speed high when starting off in the M position in 2nd gear Poor acceleration flares on starting off in the D D3 R and M positions Stall speed high in the R position Shift cable broken or out of adjustment 2 4th clutch defective Inspect the clutch piston clutch piston check valve and O rings Check the spring retainer and retainer seal for wear and damage Inspect the clutch end plate to top disc clearance If th
124. are bolted on the servo body The A T clutch pressure control solenoid valves A B and C are mounted on the outside of the transmission housing Wednesday March 12 2008 8 49 53 PM Page 48 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed SHIFT SOLENOID SHIFT SOLENOID VALVE D A T CLUTCH PRESSURE VALVE A SHIFT SOLENOID CONTROL SOLENOID VALVE E VALVE B SHIFT SOLENOID VALVE B l SEVE A TENOID A T CLUTCH PRESSURE TONTO SOLENOID A T CLUTCH PRESSURE CONTROL SOLENOID SERVO BODY NY f ha D VALVE A REGULATOR VALVE BODY MAIN VALVE BODY G01818305 Fig 49 Identifying Valve Body Components Main Valve Body The main valve body contains the manual valve the shift valves A B C and E the relief valve the lock up control valve the cooler check valve the servo control valve and the ATF pump gears The primary function of the main valve body is to switch fluid pressure on and off and to control hydraulic pressure going to the hydraulic control system Wednesday March 12 2008 8 49 53 PM Page 49 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed MAIN VALVE BODY SHIFT VALVE A SHIFT VALVE B MANUAL VALVE A RELIEF VALVE COOLER CHECK VALVE SHIFT VALVE E SERVO CONTROL VALVE LOCK UP CONTROL VALVE G01818306 Fig 50 Identifying Main Valve Body Components Regulator Valve Body The regulator valve body contains the regulator valve the torque converter check valve
125. ator to blink If the malfunction indicator lamp MIL was reported ON or the D indicator has been blinking check for DTCs If the vehicle has one of the symptoms in the following chart check the probable cause s for it in the sequence listed until you find the problem Wednesday March 12 2008 8 49 52 PM Page 14 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed When you turn the ignition switch ON Il the D indicator comes on and stays on in all shift lever positions or never comes on at all D3 or M indicator does not come on while the shift lever is in that position Shift lever cannot be moved from P position while you re pushing on the brake pedal Shift lever cannot pass through R position from N position Ignition switch cannot be moved from ACC I position to LOCK 0 position Key is pushed in shift lever in P position G01818268 Communication line between multiplex integrated control unit and gauge control module defective Communication line between multiplex integrated control unit and gauge control module defective A problem in the shift lock system interlock system A problem in the reverse lock system of interlock system A problem in the key interlock system interlock system Check the multiplex integrated control system communication line between the multiplex integrated control unit and gauge control module see page 22 105 Check the mult
126. away with a known good PCM replace the original PCM NO Repair open in the wire between the A T clutch pressure control solenoid valve B and ground G101 or repair poor ground G101 then go to step 12 Wednesday March 12 2008 8 49 57 PM Page 217 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed A T CLUTCH PRESSURE CONTROL SOLENOID VALVE B CONNECTOR Wire side of female terminals G01818436 Fig 180 Checking For Continuity Between A T Clutch Pressure Control Solenoid Valve B Connector Terminal No 2 amp Body Ground 10 Clear the DTC with the HDS 11 Test drive the vehicle for several minutes in the D position in all five gears 12 Check the OBD STATUS in DTCs MENU for a pass fail test of code P0967 Did the result indicate a pass YES The problem has been corrected NO Return to step 1 and recheck DTC P0970 PROBLEM IN A T CLUTCH PRESSURE CONTROL SOLENOID VALVE C CIRCUIT Wednesday March 12 2008 8 49 57 PM Page 218 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed NOTE e Record all freeze data and review General Troubleshooting Information see GENERAL TROUBLESHOOTING INFORMATION before you troubleshoot e This code is caused by an electrical circuit problem and cannot be caused by a mechanical problem in the transmission Clear the DTC with the HDS Check that DTC P0970 recurs Is DTC P0970 indicated YES Go to step 6 NO Go to step 3 S
127. ay March 12 2008 8 50 01 PM Page 293 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed G01818489 Fig 233 Disconnecting The A T Clutch Pressure Control Solenoid Valve A Connector Measure A T clutch pressure control solenoid valve A resistance at the solenoid valve A connector Standard 3 10 ohm If the resistance is out of standard replace the A T clutch pressure control solenoid valve A Connect the battery positive terminal to the No terminal of the A T clutch pressure control solenoid valve A connector and connect the battery negative terminal to the No 2 terminal A clicking sound should be heard If nosound is heard remove the A T clutch pressure control solenoid valve A Check the fluid passage of the A T clutch pressure control solenoid valve for dust or dirt Connect the No 1 terminal of the A T clutch pressure control solenoid valve A connector to the battery positive terminal and connect the No 2 terminal to the battery negative terminal Make sure the A T clutch pressure control solenoid valve moves Wednesday March 12 2008 8 50 01 PM Page 294 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed G01818490 Fig 234 Checking A T Clutch Pressure Control Solenoid Valve Movement 13 Disconnect one of the battery terminals and check for valve movement Wednesday March 12 2008 8 50 01 PM Page 295 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diag
128. ce at the solenoid connector Is there 3 10 ohm YES Go to step 9 NO Replace the A T clutch pressure control solenoid valve A see A T CLUTCH PRESSURE CONTROL SOLENOID VALVE A REPLACEMENT then go to step 12 Wednesday March 12 2008 8 49 57 PM Page 205 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed A T CLUTCH PRESSURE CONTROL SOLENOID VALVE A CONNECTOR Terminal side of male terminals G01818427 Fig 171 Measuring A T Clutch Pressure Control Solenoid Valve A Resistance At The Solenoid Connector 9 Check for continuity between A T clutch pressure control solenoid valve A connector terminal No 2 and body ground Is there continuity YES Go to step 10 NO Repair open in the wire between the A T clutch pressure control solenoid valve A and ground G101 or repair poor ground G101 then go to step 12 Wednesday March 12 2008 8 49 57 PM Page 206 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed A T CLUTCH PRESSURE CONTROL SOLENOID VALVE A CONNECTOR Wire side of female terminais G01818428 Fig 172 Checking For Continuity Between A T Clutch Pressure Control Solenoid Valve A Connector Terminal No 2 amp Body Ground 10 Turn the ignition switch ON II 11 Measure the voltage between A T clutch pressure control solenoid valve A connector terminals No 1 and No 2 Is there about 11 V as the ignition switch is turned to the ON ID position
129. ch lock up is ON and the mainshaft rotates at the same speed as the Wednesday March 12 2008 8 49 54 PM Page 69 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed engine l Power flow TORQUE CONVERTER CLUTCH PISTON The power flows by way of DAMPER SPRING Engki TURBINE Drive plate cA CONVERTER To ATF cooler co i ce converter cover INLET OUTLET Ta converter clutch piston Damper spring Turbine MAINSHAFT G01818328 Fig 72 Torque Converter Clutch Lock up ON Engaging Torque Converter Clutch Fluid Flow Torque Converter Clutch Lock up OFF Disengaging Torque Converter Clutch Fluid entering from the chamber between the torque converter cover and the torque converter clutch piston passes through the torque converter and goes out through the chambers between the turbine and the stator and between the pump and the stator As a result the torque converter clutch piston moves away from the torque converter and the torque converter lock up clutch is released torque converter clutch lock up is OFF Engine Drive plate Torgus converter cover To ATF cooler Pump INLET Turbine ae Mainshaft MAINSHAFT G01818329 Fig 73 Torque Converter Clutch Lock up OFF Disengaging Torque Converter Clutch Fluid Flow No Lock up Shift solenoid valve E is turned OFF by the PCM and shift solenoid valve E pressure SE is not applied to the Wednesday March 12 2008 8 49 54 PM Page 70
130. ch piston clutch piston check valve and O rings Check the spring retainer and retainer seal for wear and damage Inspect the clutch end plate to top disc clearance If the clearance is out of tolerance inspect the clutch discs and plates for wear and damage If the discs are worn or damaged replace the discs as a set Inspect the clutch waved plate height If the height is out of tolerance replace the waved plate If the discs and plates are OK adjust the clearance with the clutch end plate Inspect the 5th clutch feed pipe If the 5th clutch feed pipe is scored replace it and O ring under the feed pipe guide Replace the mainshaft if the bushing for the 5th clutch feed pipe is loose or damaged Improper alignment of ATF pump and torque converter housing may cause ATF pump seizure The symptoms are mostly an rpm related ticking noise or a high pitched squeak Be careful not to damage the torque converter housing when replacing the main ball bearing You may also damage the ATF pump when you torque down the main valve body This will result in ATF pump seizure if not detected Use the proper tools Install the main seal flush with the torque converter housing If you push it into the torque converter housing until it bottoms out it will block the fluid return passage and result in damage Inspect if the ATF strainer is clogged with particles of steel or aluminum If clogged replace it and flush the torque converter cooler and li
131. check Turn the ignition switch OFF 7 Disconnect the A T clutch pressure control solenoid valve C connector Measure A T clutch pressure control solenoid valve C resistance at the solenoid connector Is there 3 10 ohm YES Go to step 9 NO Replace the A T clutch pressure control solenoid valve C see A T CLUTCH PRESSURE CONTROL SOLENOID VALVE B amp C REPLACEMENT then go to step 10 Wednesday March 12 2008 8 49 58 PM Page 223 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed A T CLUTCH PRESSURE CONTROL SOLENOID VALVE C CONNECTOR Terminal side of male terminals G01818440 Fig 184 Measuring A T Clutch Pressure Control Solenoid Valve C Resistance At The Solenoid Connector 9 Check for continuity between A T clutch pressure control solenoid valve C connector terminal No 2 and body ground Is there continuity YES Update the PCM if it does not have the latest software or substitute a known good PCM see PCM UPDATING amp SUBSTITUTION FOR TESTING then recheck If the symptom indication goes away with a known good PCM replace the original PCM NO Repair open in the wire between the A T clutch pressure control solenoid valve C and ground G101 or repair poor ground G101 then go to step 10 Wednesday March 12 2008 8 49 58 PM Page 224 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed A T CLUTCH PRESSURE CONTROL SOLENOID VALVE C CONNECTOR
132. ches and gears for 1st 2nd 3rd and idler The idler shaft is located between the mainshaft and secondary shaft and the idler gear transmits power between the mainshaft and the secondary shaft The gears on the mainshaft and the secondary shaft are in constant mesh with those on the countershaft When certain combinations of gears in the transmission are engaged by the clutches power is transmitted through the mainshaft then to the secondary shaft to the countershaft provide drive ELECTRONIC CONTROL The electronic control system consists of the powertrain control module PCM sensors and solenoid valves Shifting and lock up are electronically controlled for comfortable driving under all conditions The PCM is located below the dashboard under the front lower panel behind the center console HYDRAULIC CONTROL The valve bodies include the main valve body the regulator valve body and the servo body They are bolted to the torque converter housing The main valve body contains the manual valve the shift valves A B C and E the relief valve the lock up control valve the cooler check valve the servo control valve and the ATF pump gears The regulator valve body contains the regulator valve the torque converter check valve lock up shift valve and the Ist and 3rd accumulators The servo body contains the servo valve the shift valve D accumulators for 2nd 4th and 5th and shift solenoid valves for A B C D and E Fluid from the reg
133. circuit problem and cannot be caused by a mechanical problem in the transmission Clear the DTC with the HDS Check that DTC P0963 recurs Is DTC P0963 indicated YES Go to step 6 NO Go to step 3 Select P CTRL SOL CONTROL in MISC TEST MENU then select P CONTROL SOL A in P CTRL SOL CTRL MENU with the HDS Drive with the A T clutch pressure control solenoid valve A at 0 2 A in SOL A CONTROL menu Check the OBD STATUS in DTCs MENU for a pass fail test of code P0963 Did the result indicate a fail YES Go to step 6 NO Intermittent failure the system is OK at this time Check for poor connections or loose terminals at the A T clutch pressure control solenoid valve A and PCM If the tester indicates NOT COMPLETE return to step 3 and recheck Turn the ignition switch OFF 7 Disconnect the A T clutch pressure control solenoid valve A connector Measure A T clutch pressure control solenoid valve A resistance at the solenoid connector Is there 3 10 ohm YES Go to step 9 NO Replace the A T clutch pressure control solenoid valve A see A T CLUTCH PRESSURE CONTROL SOLENOID VALVE A REPLACEMENT then go to step 12 Wednesday March 12 2008 8 49 57 PM Page 209 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed A T CLUTCH PRESSURE CONTROL SOLENOID VALVE A CONNECTOR Terminal side of male terminals G01818430 Fig 174 Measuring A T Clutch Pressure Control Solenoid Valve A Resi
134. ck or A T clutch pressure control flares on all upshifts and downshifts Excessive shock or flares on 1 2 upshift or 2 1 downshift G01818274 solenoid valve B defective A T clutch pressure control solenoid valve C defective Mainshaft speed sensor defective Countershaft speed sensor defective ATF temperature sensor defective Foreign material in separator plate orifice Shift solenoid valve E defective A T clutch pressure control solenoid valve A defective A T clutch pressure control solenoid valve B defective A T clutch pressure control solenoid valve C defective 2nd clutch transmission fluid pressure switch defective Foreign material in separator plate orifice 1st accumulator defective 2nd accumulator defective 1st check ball stuck 2nd check ball stuck Lock up shift valve defective 1st clutch defective 2nd clutch defective Inspect the solenoid valve filter gasket and O rings for wear and damage and inspect the solenoid valves for seizure Check the mainshaft speed sensor and countershaft speed sensor installation Check the D indicator and check for loose connectors Inspect the solenoid valve filter gasket and O rings for wear and damage and inspect the solenoid valves for seizure Check the 1st and 2nd clutch pressures Inspect the clutch piston clutch piston check valve and O rings Check the spring retainer and retainer seal for wear and damage Inspect the clutch end plate to top disc clea
135. clutch defective Check the D indicator and check for loose connectors Inspect the solenoid valve filter gasket for wear and damage and inspect the solenoid valves for seizure Check the 2nd and 3rd clutch pressures Inspect the clutch piston clutch piston check valve and O rings Check the spring retainer and retainer seal for wear and damage Inspect the clutch end plate to top disc clearance If the clearance is out of tolerance inspect the clutch discs and plates for wear and damage If the discs are worn or damaged replace the discs as a set Inspect the clutch waved plate height If the height is out of tolerance replace the waved plate If the discs and plates are OK adjust the clearance with the clutch end plate Inspect the 3rd clutch feed pipe If the 3rd clutch feed pipe is scored replace it and O ring under the feed pipe guide Replace the secondary shaft if the bushing for the 3rd clutch feed pipe is loose or damaged Check the D indicator and check for loose connectors Inspect the solenoid valve filter gasket and O rings for wear and damage and inspect the solenoid valves for seizure Check the 3rd and 4th clutch pressures Inspect the clutch piston clutch piston check valve and O rings Check the spring retainer and retainer seal for wear and damage Inspect the clutch end plate to top disc clearance If the clearance is out of tolerance inspect the clutch discs and plates for wear and damage If the discs are
136. control solenoid valves A B and C Wednesday March 12 2008 8 49 53 PM Page 42 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed PCM Ignition timing Mainshaft Speed requirement Sensor Signal Countershaft Speed Sensor Signe Actual Decision of shi driving shift ifting Trottle Position position mode Sensor Signal A T Clutch Master Target of Current Pressure Control Controlling Current feedback Solenoid Valves A B and C Manifold Absolute Correction of Pressure Sensor Signal Data Engine RPM Signal a Correction of engine torque signal data Barometric 2nd Clutch Transmission Fluid Pressure Switch Signal Correction of hydraulic al pressure application 3rd Clutch Transmission Fluid timing Pressure Switch Signal Correction of engine 7S ea coolant temperature Engine Coolant sensor data Temperature Sensor Signal Correction of ATF temperature sensor ATF Temperature signal data Sensor Signal Correction of sequential sportshift mode position driving condition data Transmission Gear Selection Switch Signal G01818294 Fig 40 Clutch Pressure Control Schematic LOCK UP CONTROL The shift solenoid valve E controls the hydraulic pressure to switch the lock up shift valve and lock up ON and OFF The PCM actuates the shift solenoid valve E and the A T clutch pressure control solenoid valve A to control the torque converter clutch
137. cored replace the end cover Check the D indicator and check for loose connectors inspect the solenoid valve filter gasket and O rings for wear and damage and inspect the solenoid valves for seizure Check the mainshaft speed sensor and countershaft speed sensor installation Check for a loose shift cable at the shift lever and the transmission control shaft Inspect the clutch piston clutch piston check valve and O rings Check the spring retainer and retainer seal for wear and damage Inspect the clutch end plate to top disc clearance If the clearance is out of tolerance inspect the clutch discs and plates for wear and damage If the discs are worn or damaged replace the discs as a set Inspect the clutch waved plate height If the height is out of tolerance replace the waved plate If the discs and plates are OK adjust the clearance with the clutch end plate Check for a missing shift fork bolt on the shift fork shaft Check the 4th clutch pressure Inspect the servo valve and O ring Fig 19 Symptom Troubleshooting Index 6 Of 11 Wednesday March 12 2008 8 49 53 PM 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed No shift Mainshaft speed sensor Check the D indicator and check for loose connectors defective Check the mainshaft and countershaft speed sensor Countershaft speed sensor installation defective Check the D indicator and check for loose connectors Excessive sho
138. ct the clutch end plate to top disc clearance If the clearance is out of tolerance inspect the clutch discs and plates for wear and damage If the discs are worn or damaged replace the discs as a set Inspect the clutch waved plate height If the height is out of tolerance replace the waved plate If the discs and plates are OK adjust the clearance with the clutch end plate Check the D indicator and check for loose connectors Inspect the shift solenoid valve E for seizure and O rings for wear and damage Check for a missing shift fork bolt on the shift fork shaft Check the 4th clutch pressure Inspect the clutch piston clutch piston check valve and O rings Check the spring retainer and retainer seal for wear and damage Inspect the clutch end plate to top disc clearance If the clearance is out of tolerance inspect the clutch discs and plates for wear and damage If the discs are worn or damaged replace the discs as a set Inspect the clutch waved plate height If the height is out of tolerance replace the waved plate If the discs and plates are OK adjust the clearance with the clutch end plate Inspect the reverse selector gear teeth chamfers and inspect engagement teeth chamfers of the countershaft 4th gear and reverse gear Replace the reverse gears and the reverse selector if they are worn or damaged If the transmission makes a clicking grinding or whirring noise also replace the mainshaft 4th gear reverse idler ge
139. d Has the ATF deteriorated Wednesday March 12 2008 8 49 56 PM Page 168 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed YES Replace ATF see DRAINING amp REFILLING and go to step 4 NO Go to step 8 Clear the DTC with the HDS Test drive the vehicle in the D position in all five gears at speeds over 12 mph 20 km h for more than 20 seconds then slow down to a stop Retest drive the vehicle in the D position in all five gears at speeds over 12 mph 20 km h for more than 20 seconds then slow down to a stop Check the OBD STATUS in DTCs MENU for a pass fail test of code P0747 Did the result indicate a fail YES Go to step 8 NO Intermittent failure the system is OK at this time If the tester indicates NOT COMPLETE return to step 5 and recheck Clear the DTC with the HDS Select LINEAR SOL TEST in MISC TEST MENU then carry out LINEAR SOL A TEST in LINEAR SOL TEST MENU with the HDS Is the system OK YES Intermittent failure the system is OK at this time If the tester indicates NOT COMPLETE return to step 9 and recheck NO Follow instructions indicated on the HDS by the test result but the tester has not determined the cause of the failure go to step 10 If any part was replaced go to step 11 Inspect A T clutch pressure control solenoid valve A see A T CLUTCH PRESSURE CONTROL SOLENOID VALVE A TEST Does the A T clutch pressure control solenoid v
140. d recheck Clear the DTC with the HDS Select SHIFT SOL TEST in MISC TEST MENU then carry out A T SHIFT SOL E test in SHIFT SOL TEST MENU with the HDS Is a clicking sound heard YES Go to step 10 NO Replace shift solenoid valve E see SHIFT SOLENOID VALVE REPLACEMENT then go to step 12 Select LINEAR SOL TEST in MISC TEST MENU then carry out LINEAR SOL A TEST in LINEAR SOL TEST MENU with the HDS Is the system OK YES Intermittent failure the system is OK at this time If the tester indicates NOT COMPLETE return to step 10 and recheck NO Follow instructions indicated on the HDS by the test result but the tester has not determined the cause of the failure go to step 11 If any part was replaced go to step 12 Inspect A T clutch pressure control solenoid valve A see A T CLUTCH PRESSURE CONTROL SOLENOID VALVE A TEST Does the A T clutch pressure control solenoid valve A work properly YES Repair hydraulic system related with shift valve E or replace the transmission then go to step 12 NO Replace A T clutch pressure control solenoid valve A see A T CLUTCH PRESSURE CONTROL SOLENOID VALVE A REPLACEMENT then go to step 12 Clear the DTC with the HDS Test drive the vehicle in the D position in all five gears at speeds over 12 mph 20 km h for more than 20 seconds then slow down to a stop Retest drive the vehicle in the D position in all five gears at speeds over 12 mph 20
141. d the countershaft Power is transmitted to the final drive gear which in turn drives the final driven gear Wednesday March 12 2008 8 49 53 PM Page 35 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed TORQUE 5TH CLUTCH CONVERTER MAINSHAFT MAINSHAFT STH GEAR FINAL DRIVE GEAR COUNTERSHAFT COUNTERSHAFT 5TH GEAR FINAL DRIVEN GEAR G01818286 Fig 32 5th Gear Power Flow R Position Hydraulic pressure is applied to the servo valve to engage the reverse selector with the countershaft reverse gear and reverse selector hub while the shift lever is in the R position Hydraulic pressure is also applied to the 4th clutch then the 4th clutch engages the mainshaft reverse gear with the mainshaft The mainshaft reverse gear drives the countershaft reverse gear via the reverse idler gear The rotation direction of the countershaft reverse gear is changed by the reverse idler gear Wednesday March 12 2008 8 49 53 PM Page 36 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed The countershaft reverse gear drives the countershaft via the reverse selector which drives the reverse selector hub Power is transmitted to the final drive gear which in turn drives the final driven gear REVERSE MAINSHAFT TORQUE REVERSE GEAR ATH CLUTCH FA CONVERTER MAINSHAFT FINAL DRIVE GEAR COUNTERSHAFT COUNTERSHAFT REVERSE GEAR REVERSE SELECTOR REVERSE SELECTOR HUB
142. detent plunger is depressed by the detent bracket inner wall and detent plunger spring puts the shift lever back into the neutral position The detent plunger also works in the P position Wednesday March 12 2008 8 49 54 PM Page 75 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed UPSHIFT POSITION E DOWNSHIFT POSITION DETENT PLUNGER 7 ENS aN DETENT PLUNGER SPRING SHIFT LEVER G01818335 Fig 79 Shifting To Upshift amp Downshift Positions SHIFT LOCK REVERSE LOCK MECHANISM The shift lock system reduces the risk of unintentional engine starting Starting the engine is possible only in the P and N positions The shift lock mechanism consists of the shift lock solenoid shift lock stop reverse lock stop shift lock release and related parts The reverse lock mechanism shares the shift lock mechanism The shift lock solenoid is electronically controlled by the shift lock reverse lock control system signals If the shift lock solenoid does not operate the shift lock reverse lock mechanism can be released by pressing the shift lock release In the P position while pressing the brake pedal and releasing the accelerator the shift lock solenoid is turned ON and the shift lock solenoid plunger is retracted releasing the shift lock stop This allows the shift lever to be moved Wednesday March 12 2008 8 49 54 PM Page 76 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed SHIFT
143. ds then slowdown to a stop Retest drive the vehicle in the D position in all five gears at speeds over 12 mph 20 km h for more than 20 seconds then slow down to a stop Check the OBD STATUS in DTCs MENU for a pass fail test of code P0756 Did the result indicate a fail YES Go to step 8 NO Intermittent failure the system is OK at this time If the tester indicates NOT COMPLETE return to step 5 and recheck Clear the DTC with the HDS Select SHIFT SOL TEST in MISC TEST MENU then carry out A T SHIFT SOL B test in SHIFT SOL TEST MENU with the HDS Is a clicking sound heard YES Go to step 10 NO Replace shift solenoid valve B see SHIFT SOLENOID VALVE REPLACEMENT then go to step 13 Test drive the vehicle in the D position in all five gears at speeds over 12 mph 20 km h for more than 20 seconds then slow down to a stop Retest drive the vehicle in the D position in all five gears at speeds over 12 mph 20 km h for more than 20 seconds then slow down to a stop Check the OBD STATUS in DTCs MENU for a pass fail test of code P0756 Did the result indicate a fail YES Repair shift valve B or replace the transmission then go to step 13 NO Intermittent failure the system is OK at this time If the tester indicates NOT COMPLETE return to step 10 and recheck Wednesday March 12 2008 8 49 56 PM Page 171 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed C
144. e FINAL DRIVEN GEAR G01818287 Fig 33 R Position Power Flow ELECTRONIC CONTROL SYSTEM Functional Diagram The electronic control system consists of the powertrain control module PCM sensors and solenoid valves Shifting and lock up are electronically controlled for comfortable driving under all conditions The PCM receives input signals from the sensors switches and other control units perform processing data and outputs signals for the engine control system and A T control system The A T control system includes shift control grade logic control clutch pressure control and lock up control is stored in the PCM Wednesday March 12 2008 8 49 53 PM Page 37 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed The PCM switches the shift solenoid valves and the A T clutch pressure control solenoid valves to control shifting transmission gears and lock up torque converter clutch Engine RPM Signal Throttle Position Sensor Signal Gauge Control Module m PGM FI Control A T Gear Position Indicator Engine Coolant i System Sequential Sportshift Mode Temperature Sensor Signal Shift Position Indicator Barometric Pressure Sensor Signal Manifold Absolute Pressure Sensor Signal ATF Temperature Sensor Signal Shift Solenoid Valve A a Shift Control Service Check Signal Shift Solenoid Valve B ens Grade Logic Control Ascending control Shift Solenoid Valve C Desce
145. e A connector for rust dirt or oil and clean if necessary then connect the connector securely 12 Install the intake air duct A T CLUTCH PRESSURE CONTROL SOLENOID VALVE B amp C TEST 1 Connect the HDS to the DLC A A G01818492 Fig 236 Connecting The HDS To The DLC Select LINEAR SOL TEST in MISC TEST MENU on the HDS Carry out LINEAR SOL B TEST SOL C TEST in LINEAR SOL TEST MENU with the HDS Follow instructions indicated on the HDS by the test result If the HDS has not determined the cause of the failure remove A T clutch pressure control solenoid valve B C and test Wednesday March 12 2008 8 50 01 PM Page 298 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed 5 Disconnect the A T clutch pressure control solenoid valves B and C connectors i G01818493 Fig 237 Disconnecting The A T Clutch Pressure Control Solenoid Valves B amp C Connectors Measure A T clutch pressure control solenoid valve B resistance between the solenoid valve B terminals No 1 and No 2 and measure A T clutch pressure control solenoid valve C resistance between the solenoid valve C terminals No 1 and No 2 Standard 3 10 ohm If the resistance of either A T clutch pressure control solenoid valve is out of standard replace the A T clutch pressure control solenoid valves B and C 8 Connect the battery positive terminal to the No terminal of the A T clutch pressure control solenoid
146. e ATF pump and regulator valve or replace the transmission Measure the 3rd clutch pressure see PRESSURE TEST Is the 3rd clutch pressure within service limits YES Go to step 6 NO Shift valves A and D are stuck Repair these valves and hydraulic circuit or replace the transmission Clear the DTC with the HDS Test drive the vehicle for several minutes under the same conditions as those indicated by the freeze data Wednesday March 12 2008 8 49 56 PM Page 165 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed or drive in the 3rd gear in the M position at speeds over 10 mph 16 km h for 20 seconds 8 Check the OBD STATUS in DTCs MENU for a pass fail test of code P0733 Did the result indicate a fail YES Repair the 3rd clutch or replace the transmission NO Intermittent failure the system is OK at this time If the tester indicates NOT COMPLETE return to step 1 and recheck DTC P0734 PROBLEM IN 4TH CLUTCH amp 4TH CLUTCH HYDRAULIC CIRCUIT NOTE Record all freeze data and review General Troubleshooting Information see GENERAL TROUBLESHOOTING INFORMATION before you troubleshoot Warm up the engine to normal operating temperature the radiator fan comes on Check to be sure that the transmission is filled to the proper level and check for fluid leaks Drain the ATF see DRAINING amp REFILLING through a strainer Inspect the ATF and strainer for metal debris or bu
147. e DTC with the HDS 31 Test drive the vehicle for several minutes under the same conditions as those indicated by the freeze data 32 Check the OBD STATUS in DTCs MENU for a pass fail test of code P0717 Did the result indicate a pass YES The problem has been corrected NO Return to step 1 and recheck DTC P0718 MAINSHAFT SPEED SENSOR INTERMITTENT FAILURE NOTE e Record all freeze data and review General Troubleshooting Information see GENERAL TROUBLESHOOTING INFORMATION before you troubleshoot e This code is caused by an electrical circuit problem and cannot be caused by a mechanical problem in the transmission 1 Clear the DTC with the HDS 2 Test drive the vehicle for several minutes in the D position in all five gears Wednesday March 12 2008 8 49 55 PM Page 133 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed Check the OBD STATUS in DTCs MENU for a pass fail test of code P0718 Did the result indicate a fall YES Go to step 4 NO Intermittent failure the system is OK at this time Check for poor connections or loose terminals at the mainshaft speed sensor and PCM If the tester indicates NOT COMPLETE return to step 2 and recheck Turn the ignition switch OFF Disconnect the mainshaft speed sensor connector and inspect the connector and connector terminals to be sure they are making good contact Are the connector terminals OK YES Go to step 6 NO Repair the connector
148. e clearance is out of tolerance inspect the clutch discs and plates for wear and damage If the discs are worn or damaged replace the discs as a set Inspect the clutch waved plate height If the height is out of tolerance replace the waved plate If the discs and plates are OK adjust the clearance with the clutch end plate Check for a loose shift cable at the shift lever and the transmission control shaft Check the 4th clutch pressure in the D and R positions Inspect the clutch piston clutch piston check valve and O rings Check the spring retainer and retainer seal for wear and damage Inspect the clutch end plate to top disc clearance If the clearance is out of tolerance inspect the clutch discs and plates for wear and damage If the discs are worn or damaged replace the discs as a set Inspect the clutch waved plate height If the height is out of tolerance replace the waved plate If the discs and plates are OK adjust the clearance with the clutch end plate Poor acceleration flares on starting off in the D D3 R and M positions Stall speed low in the D and D3 positions and in the M position in 1st and 2nd gears Poor acceleration flares on starting off in the D D3 R and M positions Stall speed low in the R position Shift solenoid valve E defective Torque converter one way clutch defective Engine output low Torque converter clutch piston defective Lock up shift valve defective Torq
149. e for each switch position Connector Terminal G01818630 Fig 262 Transmission Range Switch Continuity Test Table Wednesday March 12 2008 8 50 02 PM Page 327 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed If the transmission range switch continuity check is OK replace the faulty transmission range switch harness If there is no continuity between any terminals remove the transmission range switch and check the end of the selector control shaft A Standard Control Shaft Width B 6 1 6 2 mm 0 240 0 244 in Control Shaft End Gap C 1 8 2 0 mm 0 07 0 08 in G01818631 Fig 263 Checking The End Of The Selector Control Shaft 7 The measurement of the control shaft end is within the standard replace the transmission range switch If the measurement is out of the standard repair the control shaft end and recheck the transmission range switch continuity TRANSMISSION RANGE SWITCH REPLACEMENT Wednesday March 12 2008 8 50 02 PM Page 328 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed 1 Raise the vehicle and make sure it is securely supported 2 Shift to the N position 3 Remove the transmission range switch cover G01818632 Fig 264 Removing The Transmission Range Switch Cover 4 Disconnect the transmission range switch connector Wednesday March 12 2008 8 50 02 PM Page 329 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnos
150. e into the connector PCM UPDATING amp SUBSTITUTION FOR TESTING Special Tools Required Honda Interface Module HIM EQS05A35570 Use this procedure when you have to substitute a known good PCM in a troubleshooting procedure Update the PCM only if the PCM does not already have the latest software loaded Do not turn the ignition switch OFF while updating the PCM If you turn the ignition switch OFF the PCM can be damaged How to Update the PCM NOTE To ensure the latest program is installed update a PCM whenever the PCM is substituted or replaced You cannot update a PCM with the program it already has It will only accept a new program Before you update the PCM make sure the vehicle s battery is fully charged To prevent PCM damage do not operate any electrical system audio system brakes air conditioning power windows moonroof and door locks during the update If you need to diagnose the Honda interface module HIM because the HIM s red 3 light came on or was flashing during the update leave the ignition switch in the ON Il position when you disconnect the HIM from the DLC This will prevent PCM damage 1 Turn the ignition switch ON ID Do not start the engine 2 Connect the Honda interface module HIM to the DLC A located under the left end of the dash Wednesday March 12 2008 8 49 52 PM Page 9 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed G01818264 Fig 10 Locating The
151. e mainshaft speed sensor see MAINSHAFT SPEED SENSOR REPLACEMENT then go to step 19 NO Go to step 16 MAINSHAFT SPEED SENSOR CONNECTOR NM WHT RED Wire side of female terminals G01818387 Fig 131 Measuring The Voltage Between Mainshaft Speed Sensor Connector Terminal No 2 amp Body Ground 16 Turn the ignition switch OFF Wednesday March 12 2008 8 49 55 PM Page 136 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed 17 Disconnect PCM connector C 22P 18 Check for continuity between PCM connector terminal C19 and mainshaft speed sensor connector terminal No 2 Is there continuity YES Update the PCM if it does not have the latest software or substitute a known good PCM see PCM UPDATING amp SUBSTITUTION FOR TESTING then recheck If the symptom indication goes away with a known good PCM replace the original PCM NO Repair open in the wire between PCM connector terminal C19 and the mainshaft speed sensor then go to step 19 PCM CONNECTOR C 22P MAINSHAFT SPEED SENSOR CONNECTOR NM WHT RED WHT RED Wire side of female terminals G01818388 Fig 132 Checking For Continuity Between PCM Connector Terminal C19 amp Mainshaft Speed Sensor Connector Terminal No 2 19 Clear the DTC with the HDS 20 Test drive the vehicle for several minutes in the D position in all five gears 21 Check the OBD STATUS in DTCs MENU for a pass fail test of code P0718
152. e result indicate a fail YES Go to step 8 NO Intermittent failure the system is OK at this time If the tester indicates NOT COMPLETE return to step 5 and recheck Clear the DTC with the HDS Select SHIFT SOL TEST in MISC TEST MENU then carry out A T SHIFT SOL B test in SHIFT SOL TEST MENU with the HDS Is a clicking sound heard YES Go to step 10 NO Replace shift solenoid valve B see SHIFT SOLENOID VALVE REPLACEMENT then go to step 14 Select SHIFT SOL TEST in MISC TEST MENU then carry out A T SHIFT SOL C test in SHIFT SOL TEST MENU with the HDS Is a clicking sound heard YES Go to step 11 NO Replace shift solenoid valve C see SHIFT SOLENOID VALVE REPLACEMENT then go to step 14 Test drive the vehicle in the D position in all five gears at speeds over 12 mph 20 km h for more than 20 seconds then slow down to a stop Retest drive the vehicle in the D position in all five gears at speeds over 12 mph 20 km h for more than 20 seconds then slow down to a stop Check the OBD STATUS in DTCs MENU for a pass fail test of code P1732 Did the result indicate a fail YES Repair hydraulic system related with shift valves B and C or replace the transmission Wednesday March 12 2008 8 49 59 PM Page 259 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed then go to step 14 NO Intermittent failure the system is OK at this time If the tester indicates
153. easuring The Resistance Between Shift Solenoid Harness Connector Terminal No 2 amp Body Ground 13 Clear the DTC with the HDS 14 Test drive the vehicle for several minutes in 1st 2nd and 3rd gears in the D position 15 Check the OBD STATUS in DTCs MENU for a pass fail test of code P0977 Did the result indicate a pass YES The problem has been corrected NO Return to step 1 and recheck DTC P0979 SHORT IN SHIFT SOLENOID VALVE C CIRCUIT NOTE e Record all freeze data and review General Troubleshooting Information see GENERAL TROUBLESHOOTING INFORMATION before you Wednesday March 12 2008 8 49 58 PM Page 237 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed troubleshoot e This code is caused by an electrical circuit problem and cannot be caused by a mechanical problem in the transmission Clear the DTC with the HDS Start the engine and shift to the D position Check that DTC P0979 recurs Is DTC P0979 indicated YES Go to step 7 NO Go to step 4 Select SHIFT SOL TEST in MISC TEST MENU then carry out A T SHIFT SOL C test in SHIFT SOL TEST MENU with the HDS Start the engine and shift to the D position Check the OBD STATUS in DTCs MENU for a pass fail test of code P0979 Did the result indicate a fail YES Go to step 7 NO Intermittent failure the system is OK at this time Check the GRN wire for an intermittent short to ground between the shift solenoid va
154. ecord all freeze data and review General Troubleshooting Information see GENERAL TROUBLESHOOTING INFORMATION before you troubleshoot Warm up the engine to normal operating temperature the radiator fan comes on 2 Check to be sure that the transmission is filled to the proper level and check for fluid leaks Drain the ATF see DRAINING amp REFILLING through a strainer Inspect the ATF and strainer for metal debris or burnt fluid Wednesday March 12 2008 8 49 56 PM Page 175 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed Has the ATF deteriorated YES Replace ATF see DRAINING amp REFILLING and go to step 4 NO Go to step 8 Clear the DTC with the HDS Test drive the vehicle in the D position in all five gears at speeds over 12 mph 20 km h for more than 20 seconds then slow down to a stop Retest drive the vehicle in the D position in all five gears at speeds over 12 mph 20 km h for more than 20 seconds then slow down to a stop Check the OBD STATUS in DTCs MENU for a pass fail test of code P0776 Did the result indicate a fail YES Go to step 8 NO Intermittent failure the system is OK at this time If the tester indicates NOT COMPLETE return to step 5 and recheck Clear the DTC with the HDS Select LINEAR SOL TEST in MISC TEST MENU then carry out LINEAR SOL B TEST in LINEAR SOL TEST MENU with the HDS Is the system OK YES Intermittent failure
155. ector terminal No 2 and body ground Wednesday March 12 2008 8 49 55 PM Page 125 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed Is there continuity YES Repair short to ground in the wire between PCM connector terminal C19 and mainshaft speed sensor then go to step 30 NO Go to step 16 MAINSHAFT SPEED SENSOR CONNECTOR Wire side of female terminals G01818378 Fig 122 Checking For Continuity Between Mainshaft Speed Sensor Connector Terminal No 2 amp Body Ground Wednesday March 12 2008 8 49 55 PM Page 126 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed 16 Check for continuity between mainshaft speed sensor connector terminal No 3 and body ground Is there continuity YES Go to step 17 NO Repair open in the wire between the mainshaft speed sensor connector and ground G101 then go to step 30 MAINSHAFT SPEED SENSOR CONNECTOR Wire side of female terminals G01818379 Fig 123 Checking For Continuity Between Mainshaft Speed Sensor Connector Terminal No 3 amp Body Ground 17 Connect PCM connector C 22P 18 Turn the ignition switch ON II Wednesday March 12 2008 8 49 55 PM Page 127 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed 19 Measure the voltage between mainshaft speed sensor connector terminals No 2 and No 3 Is there about 5 V YES Go to step 20 NO Go to step 29 MAINSHAFT SPEED SEN
156. ector terminals A8 A9 and ground G101 or repair poor ground G 101 then go to step 30 Wednesday March 12 2008 8 49 56 PM Page 149 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed PCM CONNECTOR A 31P LG2 BRN YEL LG1 BRN YEL Saunas sla tenella Wire side of female terminals G01818399 Fig 143 Checking For Continuity Between PCM Connector Terminals A8 amp Body Ground amp Between A9 amp Body Ground 9 Connect PCM connector A 31P 10 Turn the ignition switch ON ID 11 Measure the voltage between countershaft speed sensor connector terminal No 1 and body ground Is there about 5 V YES Go to step 12 NO Go to step 24 Wednesday March 12 2008 8 49 56 PM Page 150 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed COUNTERSHAFT SPEED SENSOR CONNECTOR VCC2 YEL BLU Wire side of female terminals G01818400 Fig 144 Measuring The Voltage Between Countershaft Speed Sensor Connector Terminal No 1 amp Body Ground Turn the ignition switch OFF Jump the SCS line with the HDS Disconnect PCM connector A 31P Check for continuity between countershaft speed sensor connector terminal No 2 and body ground Is there continuity YES Repair short to ground in the wire between PCM connector terminal A18 and countershaft speed sensor then go to step 30 Wednesday March 12 2008 8 49 56 PM Page 151 2004 Acura TSX 2004 AU
157. ed from the left side of the torque converter Torque converter pressure 91 flows to the right side of the torque converter to engage the torque converter clutch The PCM also controls the A T clutch pressure control solenoid valve A to regulate A T clutch pressure control solenoid valve A pressure 55 is applied to the lock up shift valve and lock up control valve The position of the lock up control valve depends on A T clutch pressure control solenoid valve A pressure 55 and torque converter pressure released from the torque converter The lock up control valve controls the amount of torque converter clutch lock up until fluid between the clutch piston and torque converter cover is fully released the torque converter clutch is in partial lock up condition NOTE When used left or right indicates direction on the hydraulic circuit TORQUE CONVERTER SE IEE ON SHIFT SOLENOID VALVE E 1 55 X AX A T CLUTCH PRESSURE i CONTROL SOLENOID VALVE A sO SHIFT VALVE A and D t MANUAL VALVE TORQUE CONVERTER CHECK VALVE 30 ATF PUMP G01818331 Fig 75 Partial Lock up Fluid Flow Wednesday March 12 2008 8 49 54 PM 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed Full Lock up When the vehicle speed increases the PCM sends a signal to A T clutch pressure control solenoid valve A to increase A T clutch pressure control solenoid valve A pressure 55 and the lock up control valve is mo
158. een PCM connector terminal C10 and body ground Is there continuity YES Repair short to ground in the wire between PCM connector terminal C10 and the 3rd clutch transmission fluid pressure switch go to step 13 NO Update the PCM if it does not have the latest software or substitute a known good PCM see PCM UPDATING amp SUBSTITUTION FOR TESTING then recheck If the symptom indication goes away with a known good PCM replace the original PCM Wednesday March 12 2008 8 49 57 PM Page 194 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed PCM CONNECTOR 22P OP3SSW BLU WHT Wire side of female terminals G01818420 Fig 164 Checking For Continuity Between PCM Connector Terminal C10 amp Body Ground Clear the DTC with the HDS Start the engine and warm it up to normal operating temperature the radiator fan comes on Drive the vehicle in 3rd gear in the M position for more than 5 seconds then upshift to 4th gear and drive in 4th gear for more than 5 seconds Slow down to a stop 15 Check the OBD STATUS in DTCs MENU for a pass fail test of code P0847 Wednesday March 12 2008 8 49 57 PM Page 195 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed Did the result indicate a pass YES The problem has been corrected NO Return to step 1 and recheck DTC P0848 OPEN IN 3RD CLUTCH TRANSMISSION FLUID PRESSURE SWITCH CIRCUIT OR 3RD CLUTCH TRANSMISSION
159. een PCM connector terminals C3 and A8 or A9 Is there less than 12 ohm YES Go to step 11 NO Update the PCM if it does not have the latest software or substitute a known good PCM see PCM UPDATING amp SUBSTITUTION FOR TESTING then recheck If the symptom indication goes away with a known good PCM replace the original PCM Wednesday March 12 2008 8 49 59 PM Page 250 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed PCM CONNECTORS LG2 BRN YEL LG1 BRN YEL 2 sfalefe 7il e s fate 418 8 7 BAe e eae 9 holnpenshajs zin 28 3031 ahehe tA A 31P C 22P Wire side of female terminals G01818458 Fig 202 Measuring The Resistance Between PCM Connector Terminals C3 amp A8 Or A9 11 Disconnect the shift solenoid harness connector at the transmission housing 12 Check for continuity between PCM connector terminals C3 and A8 or A9 Is there continuity YES Repair short to ground in the wire between PCM connector terminal C3 and the shift solenoid harness connector then go to step 13 NO Check shift solenoid valve E and check for a short in the shift solenoid harness in the transmission see SHIFT SOLENOID VALVE TEST Replace shift solenoid valve E and or shift solenoid harness then go to step 13 Wednesday March 12 2008 8 49 59 PM Page 251 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed PCM CONNECTORS LG2 BRN YEL LG1 BRN YEL SH E YEL
160. efective Countershaft speed sensor defective Torque converter clutch piston defective Torque converter check valve defective Lock up shift valve defective Lock up control valve defective Transmission range switch defective or out of adjustment Shift cable broken or out of Check the D indicator and check for loose connectors Inspect the solenoid valve filter gasket for wear and damage and inspect the solenoid valves for seizure Replace the torque converter Check the mainshaft speed sensor and countershaft speed sensor installation Check the D indicator and check for loose connectors Inspect the transmission range switch operation Check for a loose shift cable at the shift lever and the transmission control shaft shift lever positions adjustment Joint in shift cable and transmission or body worn Check the D indicator and check for loose connectors Inspect the transmission range switch operation e Check the countershaft speed sensor installation Countershaft speed sensor defective Speedometer and odometer do not operate Check the engine rocker arms as described in the engine section of this service manual Transmission VTEC rocker arms defective shifts up during low rev engine speed condition engine cannot rev up to high speed G01818278 Fig 24 Symptom Troubleshooting Index 11 Of 11 SYSTEM DESCRIPTION GENERAL OPERATION The automatic transmission is
161. el e oa 19 fofnifrzfishrahie Y nfiz frahis ie izfie rojzo 2 zzii I ES EWVAVAVA Vitel rs 22 23 eq rf25 26 271 129 20 A 31P D 17P E 31P G01818297 Fig 43 Identifying PCM Connector Terminals Terminal Wire Color Signal Description Measuring Conditions Terminal Voltage Number A2 YEL BLK IGP2 Power supply circuit from main relay With ignition switch ON ll Battery voltage ete E With ignition switch OFF 0 V A3 YEL BLK IGP1 Power supply circuit from main relay With ignition switch ON Il Battery voltage i With ignition switch OFF 0 V PG2_ C B Less than 1 0 V at all times _ PG1 3 EJ 7 Less than 1 0 V atall times A8 BRN YEL LG2 Ground Less than 1 0 V at all times Ag BRN YEL_ LG1 Ground Less than 1 0 V at all times A18 BLK BLU NC Countershaft speed sensor signal With ignition switch ON II 0 V or about 5 V input i While driving About 2 5 V iva A20 YEL BLU vcc2 Power supply circuit for sensors _ With ignition switch ON II About 5 V PRC PEs _____ With ignition switch OFF 0 V A21 YEL RED VCC1 Power supply circuit for sensors With ignition switch ON II About 5 V ant M E With ignition switch OFF 0 V GRN YEL SG2 Sensor ground ____ Less than 1 0 V at all times _GRNAWHT SG1 Sensor around Less than 1 0 V at all time G01818298 Fig 44 PCM Connector A 31P Inputs amp Outputs Wednesday March 12 2008 8 49 53 PM Page 46
162. elect P CTRL SOL CONTROL in MISC TEST MENU then select P CONTROL SOL C in P CTRL SOL CTRL MENU with the HDS Drive with the A T clutch pressure control solenoid valve C at 1 0 A in SOL C CONTROL menu Check the OBD STATUS in DTCs MENU for a pass fail test of code P0970 Did the result indicate a fail YES Go to step 6 NO Intermittent failure the system is OK at this time Check for poor connections or loose terminals at the A T clutch pressure control solenoid valve C and PCM If the tester indicates NOT COMPLETE return to step 3 and recheck Turn the ignition switch OFF 7 Disconnect the A T clutch pressure control solenoid valve C connector Measure A T clutch pressure control solenoid valve C resistance at the solenoid connector Is there 3 10 ohm YES Go to step 9 NO Replace the A T clutch pressure control solenoid valve C see A T CLUTCH PRESSURE CONTROL SOLENOID VALVE B amp C REPLACEMENT then go to step 12 Wednesday March 12 2008 8 49 57 PM Page 219 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed A T CLUTCH PRESSURE CONTROL SOLENOID VALVE C CONNECTOR Terminal side of male terminals G01818437 Fig 181 Measuring A T Clutch Pressure Control Solenoid Valve C Resistance At The Solenoid Connector 9 Check for continuity between A T clutch pressure control solenoid valve C connector terminal No 2 and body ground Is there continuity YES Go to step 10 NO R
163. elector differs according to whether the shift lever shifted from D or R position e When shifted from D position the reverse selector engages with the countershaft 4th gear and the reverse selector hub and the 4th gear engages with the countershaft e When shifted from R position the reverse selector engages with the countershaft reverse gear and the reverse selector hub and the reverse gear engages with the countershaft TORQUE MAINSHAFT A CONVERTER IDLER GEAR MAINSHAFT RERA FINAL DRIVE GEAR IDLER SHAFT Ere COUNTERSHAFT IDLER GEAR SECONDARY SHAFT IDLER GEAR SECONDARY SHAFT G01818281 Fig 27 N Position Power Flow 1st Gear Hydraulic pressure is applied to the 1st clutch then the 1st clutch engages the secondary shaft 1st gear with the secondary shaft The mainshaft idler gear drives the secondary shaft via the idler shaft idler gear and the secondary shaft idler Wednesday March 12 2008 8 49 53 PM Page 31 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed gear The secondary shaft 1st gear drives the countershaft Ist gear and the countershaft Power is transmitted to the final drive gear which in turn drives the final driven gear MAINSHAFT MAINSHAFT IDLER GEAR IDLER SHAFT IDLER GEAR SECONDARY SHAFT IDLER GEAR SECONDARY SHAFT 1ST CLUTCH SECONDARY SHAFT 1ST GEAR G01818282 Fig 28 1st Gear Power Flow 2nd Gear TORQUE J CONVERTER
164. en corrected NO Return to step 1 and recheck DTC P0842 SHORT IN 2ND CLUTCH TRANSMISSION FLUID PRESSURE SWITCH CIRCUIT OR 2ND CLUTCH TRANSMISSION FLUID PRESSURE SWITCH STUCK ON Wednesday March 12 2008 8 49 57 PM Page 188 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed e Record all freeze data and review General Troubleshooting Information see GENERAL TROUBLESHOOTING INFORMATION before you troubleshoot e This code is caused by an electrical circuit problem and cannot be caused by a mechanical problem in the transmission Clear the DTC with the HDS Check the 2nd PRES SWITCH signal with the HDS in the A T data list when not in 2nd gear Is the 2nd PRES SWITCH OFF YES Go to step 3 NO Go to step 5 Start the engine and warm it up to normal operating temperature the radiator fan comes on Drive the vehicle in 2nd gear in the D position for more than 5 seconds then upshift to 4th gear and drive in 4th gear for more than 5 seconds Slow down to a stop Check the OBD STATUS in DTCs MENU for a pass fail test of code P0842 Did the result indicate a fail YES Go to step 5 NO Intermittent failure the system is OK at this time Check the BLU RED wire for an intermittent short to ground between the 2nd clutch transmission fluid pressure switch and PCM If the tester indicates NOT COMPLETE return to step 3 and recheck Turn the ignition switch OFF Disconnect the 2nd clutch transmiss
165. en recheck If the symptom indication goes away with a known good PCM replace the original PCM Wednesday March 12 2008 8 49 54 PM Page 87 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed PCM CONNECTOR D 17P ATP R WHT Wire side of female terminals G01818347 Fig 91 Checking For Continuity Between PCM Connector Terminal D5 amp Body Ground 20 Measure the voltage between PCM connector terminals C12 and A8 or A9 Is there about 5 V YES Go to step 25 NO Go to step 21 Wednesday March 12 2008 8 49 54 PM Page 88 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed PCM CONNECTORS Loreren ares LG2 BRN YEL uoma ARE Jaenen Breen A 31P C 22P Wire side of female terminals G01818348 Fig 92 Measuring The Voltage Between PCM Connector Terminals C12 amp A8 Or A9 Turn the ignition switch OFF Jump the SCS line with the HDS Disconnect PCM connector C 22P Check for continuity between PCM connector terminal C12 and body ground Is there continuity YES Repair short in the wire between PCM connector terminal C12 and the transmission range switch then go to step 49 NO Update the PCM if it does not have the latest software or substitute a known good PCM see PCM UPDATING amp SUBSTITUTION FOR TESTING then recheck If the symptom indication goes away with a known good PCM replace the original PCM Wednesday Marc
166. epair open in the wire between the A T clutch pressure control solenoid valve C and ground G101 or repair poor ground G101 then go to step 12 Wednesday March 12 2008 8 49 57 PM Page 220 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed A T CLUTCH PRESSURE CONTROL SOLENOID VALVE C CONNECTOR Wire side of female terminals G01818438 Fig 182 Checking For Continuity Between A T Clutch Pressure Control Solenoid Valve C Connector Terminal No 2 amp Body Ground 10 Turn the ignition switch ON II 11 Measure the voltage between A T clutch pressure control solenoid valve C connector terminals No 1 and No 2 Is there about 11 V as the ignition switch is turned to the ON ID position YES Update the PCM if it does not have the latest software or substitute a known good PCM see PCM UPDATING amp SUBSTITUTION FOR TESTING then recheck If the symptom indication goes away with a known good PCM replace the original PCM NO Repair open or short in the wire between PCM connector terminal C7 and A T clutch Wednesday March 12 2008 8 49 57 PM Page 221 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed pressure control solenoid valve C then go to step 12 A T CLUTCH PRESSURE CONTROL SOLENOID VALVE C CONNECTOR LS C BLU YEL Wire side of female terminals G01818439 Fig 183 Measuring The Voltage Between A T Clutch Pressure Control Solenoid Valve C Connector Ter
167. esday March 12 2008 8 50 01 PM Page 310 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed 4 5 kgf m 33 ibf ft G01818502 Fig 246 Removing The Transmission Lower Mount Nuts Lift the transmission up to create clearance between the transmission and front subframe with the jack Remove the ATF dipstick and remove the bolts securing the ATF cooler inlet line brackets A and ATF dipstick guide pipe B from the transmission hanger C Wednesday March 12 2008 8 50 01 PM Page 311 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed 6x 1 0mm 12 Nm 1 2 kgf m 8 7 bf ft 6 x 1 0 mm 12 N m 1 2 kgf m 8 7 Ibf ft 1 2 kgf m 8 7 Ibf ft G01818503 Fig 247 Removing Components 11 Remove the harness clamp D then remove the ATF dipstick guide pipe 12 Disconnect the shift solenoid harness connector Wednesday March 12 2008 8 50 01 PM Page 312 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed 6x 1 0mm 12 N m 1 2 kgf m 8 7 bf ft G01818504 Fig 248 Removing The Shift Solenoid Valve Cover Dowel Pins amp Gasket 13 Remove the shift solenoid valve cover A dowel pins B and gasket C 14 Remove the shift solenoid harness connector Wednesday March 12 2008 8 50 01 PM Page 313 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed Terminal side of male terminals G01818505 Fig 249 Removing T
168. est of code P0761 Did the result indicate a pass YES The problem has been corrected NO Return to step 1 and recheck DTC P0771 SHIFT SOLENOID VALVE E STUCK OFF NOTE Record all freeze data and review General Troubleshooting Information see GENERAL TROUBLESHOOTING INFORMATION before you troubleshoot Warm up the engine to normal operating temperature the radiator fan comes on Check to be sure that the transmission is filled to the proper level and check for fluid leaks Drain the ATF see DRAINING amp REFILLING through a strainer Inspect the ATF arid strainer for metal debris or burnt fluid Has the ATF deteriorated YES Replace ATF see DRAINING amp REFILLING and go to step 4 NO Go to step 8 4 Clear the DTC with the HDS 6 Test drive the vehicle in the D position in all five gears at speeds over 12 mph 20 km h for more than 20 seconds then slow down to a stop Retest drive the vehicle in the D position in all five gears at speeds over 12 mph 20 km h for more than Wednesday March 12 2008 8 49 56 PM Page 174 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed 20 seconds then slow down to a stop Check the OBD STATUS in DTCs MENU for a pass fail test of code P0771 Did the result indicate a fail YES Go to step 8 NO Intermittent failure the system is OK at this time If the tester indicates NOT COMPLETE return to step 5 and recheck Clear the
169. eview General Troubleshooting Information see GENERAL TROUBLESHOOTING INFORMATION before you troubleshoot Warm up the engine to normal operating temperature the radiator fan comes on Check to be sure that the transmission is filled to the proper level and check for fluid leaks Drain the ATF through a strainer see DRAINING amp REFILLING Inspect the ATF and strainer for metal debris or burnt fluid Has the ATF deteriorated YES Replace ATF see DRAINING amp REFILLING and go to step 4 NO Go to step 8 Clear the DTC with the HDS Test drive the vehicle in the D position in all five gears at speeds over 12 mph 20 km h for more than 20 seconds then slow down to a stop Retest drive the vehicle in the D position in all five gears at speeds over 12 mph 20 km h for more than 20 seconds then slow down to a stop Check the OBD STATUS in DTCs MENU for a pass fail test of code P0777 Did the result indicate a fail YES Go to step 8 NO Intermittent failure the system is OK at this time If the tester indicates NOT COMPLETE return to step 5 and recheck Clear the DTC with the HDS Select LINEAR SOL TEST in MISC TEST MENU then carry out LINEAR SOL B TEST in LINEAR SOL TEST MENU with the HDS Is the system OK YES Intermittent failure the system is OK at this time If the tester indicates NOT COMPLETE return to step 9 and recheck NO Follow instructions indicated on the HDS by the te
170. f the tester indicates NOT COMPLETE return to step 10 and recheck Clear the DTC with the HDS Test drive the vehicle in the D position in all five gears at speeds over 12 mph 20 km h for more than 20 seconds then slow down to a stop Retest drive the vehicle in the D position in all five gears at speeds over 12 mph 20 km h for more than 20 seconds then slow down and to a stop Check the OBD STATUS in DTCs MENU for a pass fail test of code P0752 Did the result indicate a pass Wednesday March 12 2008 8 49 56 PM Page 170 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed YES The problem has been corrected NO Return to step 1 and recheck DTC P0756 SHIFT SOLENOID VALVE B STUCK OFF NOTE Record all freeze data and review General Troubleshooting Information see GENERAL TROUBLESHOOTING INFORMATION before you troubleshoot Warm up the engine to normal operating temperature the radiator fan comes on Check to be sure that the transmission is filled to the proper level and check for fluid leaks Drain the ATF see DRAINING amp REFILLING through a strainer Inspect the ATF and strainer for metal debris or burnt fluid Has the ATF deteriorated YES Replace ATF see DRAINING amp REFILLING and go to step 4 NO Go to step 8 4 Clear the DTC with the HDS Test drive the vehicle in the D position in all five gears at speeds over 12 mph 20 km h for more than 20 secon
171. fective 1st clutch defective Shift solenoid valve E defective A T clutch pressure control solenoid valve A defective Shift cable broken or out of adjustment Joint in shift cable and transmission or body worn Mainshaft speed sensor defective Countershaft speed sensor defective ATF temperature sensor defective Shift fork shaft stuck Foreign material in separator plate orifice Shift valve E defective 4th reverse accumulator defective Lock up shift valve defective 4th clutch defective Check the D indicator and check for loose connectors Inspect the solenoid valve filter gasket and O rings for wear and damage and inspect the solenoid valves for seizure Check the mainshaft speed sensor and countershaft speed sensor installation Check for a loose shift cable at the shift lever and the transmission control shaft Check the 1st clutch pressure Inspect the clutch piston clutch piston check valve and O rings Check the spring retainer and retainer seal for wear and damage Inspect the clutch end plate to top disc clearance If the clearance is out of tolerance inspect the clutch discs and plates for wear and damage If the discs are worn or damaged replace the discs as a set Inspect the clutch waved plate height If the height is out of tolerance replace the waved plate If the discs and plates are OK adjust the clearance with the clutch end plate Inspect the 1st clutch feed pipe If the 1st clutch feed pipe is s
172. gaged gently NOTE When used left or right indicates direction on the hydraulic circuit Wednesday March 12 2008 8 49 54 PM Page 60 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed 2ND 2RD aro 15T AccumULATOR 2NO ACCUM UTCH 5TH CLUTCH 2ND CLUTCH 3RD CI JULATOR CLUTCH cu i CLUTCH CLUTCH SE ean TRANSMISSION FLUID ST Wis y hes Ge Fl torque om abet es lu ll iT J d 30 L j e aH ACCUMULATOR 4TH om Ef converter LD L 8 g H 20 j SHIFT lt SOLENOID VALVES SA a El A OFF U x ETH 8 on eal SC y Meld c on 1 ae 1e D ON 4 XAX L AJT CLUTCH PRESSURE CONTROL SOLENOID VALVES G01818319 Fig 63 D Position Shifting Between 2nd Gear amp 3rd Gear Hydraulic Flow D Position Driving in 3rd gear The PCM turns shift solenoid valves A B D and E OFF and C ON Shift solenoid valve B pressure SB in the right side of shift valve B is moved to the right side Shift solenoid valve D pressure SD in the left side of the shift valve D is released and the shift valve D is moved to the left side This valve movement switches A T clutch pressure control solenoid valve C pressure port leading to the 3rd clutch A T clutch pressure control solenoid valve C pressure 57 changes to 5J at the shift solenoid valve D and to 5K at the shift valve B and becomes 3rd clutch pressure 30 at the shift valve A The 3rd clutch pressure 30 is applied to the 3rd
173. h 12 2008 8 49 54 PM Page 89 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed PCM CONNECTOR C 22P Jo ENOCE 19 hofnhzjshas VASES A ATP RVS RED WHT Wire side of female terminals G01818349 Fig 93 Checking For Continuity Between PCM Connector Terminal C12 amp Body Ground 25 Shift to all positions other than N 26 Measure the voltage between PCM connector terminals C20 and A8 or A9 Is there about 5 V YES Go to step 31 NO Go to step 27 Wednesday March 12 2008 8 49 54 PM Page 90 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed PCM CONNECTORS LG2 LG1 BRN YEL BRN YEL Teule As tomhehahahs ieii ATP N RED BLK Wire side of female terminals G01818350 Fig 94 Measuring The Voltage Between PCM Connector Terminals C20 amp A8 Or A9 Turn the ignition switch OFF Jump the SCS line with the HDS Disconnect PCM connector C 22P Check for continuity between PCM connector terminal C20 and body ground Is there continuity YES Repair short in the wire between PCM connector terminal C20 and the transmission range switch then go to step 49 NO Update the PCM if it does not have the latest software or substitute a known good PCM see PCM UPDATING amp SUBSTITUTION FOR TESTING then recheck If the symptom indication goes away with a known good PCM replace the original PCM Wednesday March 12 2008 8 49 54 PM Page 91 200
174. h waved plate height If the height is out of tolerance replace the waved plate If the discs and plates are OK adjust the clearance with the clutch end plate Inspect the 1st clutch feed pipe If the 1st clutch feed pipe is scored replace the end cover Replace the secondary shaft if the bushing for the 1st clutch feed pipe is loose or damaged Fig 15 Symptom Troubleshooting Index 2 Of 11 Wednesday March 12 2008 8 49 53 PM Page 16 2004 Acura TSX Vehicle moves in the D D3 R but not in the M position in 2nd gear Vehicle moves in the D D3 M but not in the R position Poor acceleration flares on starting off in D D3 R and M positions Stall speed high in D and D3 positions and in M position in 1st and 2nd gears G01818270 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed 2nd accumulator defective 2nd gears worn or damaged 2nd clutch defective Shift solenoid valve E defective Shift fork shaft stuck Shift valve E defective 4th reverse accumulator defective 4th clutch defective Reverse gears worn or damaged Low ATF level Shift cable broken or out of adjustment ATF pump worn or binding Regulator valve stuck or spring worn ATF strainer clogged Torque converter check valve defective Check the 2nd clutch pressure Inspect the clutch piston clutch piston check valve and O rings Check the spring retainer and retainer seal for wear and damage Inspe
175. he symptoms are mostly an rpm related ticking noise or a high pitched squeak Check the line pressure Be careful not to damage the torque converter housing when replacing the main ball bearing You may also damage the ATF pump when you torque down the main valve body This will result in ATF pump seizure if not detected Use the proper tools Install the main seal flush with the torque converter housing If you push it into the torque converter housing until it bottoms out it will block the fluid return passage and result in damage Check the ATF strainer for debris If the ATF strainer is clogged with particles of steel or aluminum inspect the ATF pump If the ATF pump is OK find the damaged components that caused the debris If no cause for contamination is found replace the torque converter Inspect the differential pinion shaft for wear under the pinion gears If the differential pinion shaft is worn overhaul the differential assembly replace the ATF strainer thoroughly clean the transmission and flush the torque converter cooler and lines Check the 1st clutch pressure Inspect the clutch piston clutch piston check valve and O rings Check the spring retainer and retainer seal for wear and damage Inspect the clutch end plate to top disc clearance If the clearance is out of tolerance inspect the clutch discs and plates for wear and damage If the discs are worn or damaged replace the discs as a set Inspect the clutc
176. he HDS 9 Test drive the vehicle for several minutes in the D position in all five gears 10 Check the OBD STATUS in DTCs MENU for a pass fail test of code P0713 Wednesday March 12 2008 8 49 55 PM Page 111 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed Did the result indicate a pass YES The problem has been corrected NO Return to step 1 and recheck DTC P0716 PROBLEM IN MAINSHAFT SPEED SENSOR CIRCUIT NOTE e Record all freeze data and review General Troubleshooting Information see GENERAL TROUBLESHOOTING INFORMATION before you troubleshoot e This code is caused by an electrical circuit problem and cannot be caused by a mechanical problem in the transmission 1 Record all freez data then clear the DTC with the HDS Check for proper mainshaft speed sensor installation see MAINSHAFT SPEED SENSOR REPLACEMENT Raise the front of the vehicle make sure it is securely supported and allow the front wheels to rotate freely Start the engine drive the vehicle in the D position and hold the vehicle at speeds over 30 mph 48 km h for more than 10 seconds Check the OBD STATUS in DTCs MENU for a pass fail test of code P0716 Did the result indicate a fail YES Go to step 6 NO Intermittent failure the system is OK at this time If the tester indicates NOT COMPLETE return to step 4 and recheck Turn the ignition switch OFF Jump the SCS line with the HDS Disconnect PC
177. he Shift Solenoid Harness Connector amp Identifying Terminals Measure ATF temperature sensor resistance between shift solenoid harness connector terminals No 6 and No 7 Standard 50 25k ohm Tf the resistance is out of standard replace the ATF temperature sensor and solenoid harness go to step 17 The ATF temperature sensor is not available separately from the solenoid harness If the measurement is within the standard install the removed parts go to step 20 Disconnect the connectors from the shift solenoid valves Connect the shift solenoid valve D connector with the ATF temperature sensor F on the shift solenoid harness Wednesday March 12 2008 8 50 01 PM Page 314 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed 1 2 kgf m 8 7 Ibf ft G01818506 Fig 250 Disconnecting The Connectors From The Shift Solenoid Valves 19 Connect the solenoid valve A connector BLU wire solenoid valve B connector ORN wire solenoid valve C connector GRN wire and solenoid valve E connector RED wire 20 Install the new O ring G on the shift solenoid harness connector H and install the connector in the transmission housing 21 Install the shift solenoid valve cover dowel pins and a new gasket 22 Install the new O ring on the ATF dipstick guide pipe and install the ATF dipstick guide pipe then install the harness clamp on the ATF dipstick guide pipe 23 Secure the ATF cooler l
178. icates direction on the hydraulic circuit Wednesday March 12 2008 8 49 54 PM Page 63 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed 3RD SRO 1st H amo cure ONAN Guren CLUTCH 1ST ACCUMULATOR itiren GLUTCH 2ND CLUTCH PRESSURE ii SWITCH ire eao __ Fai cH Sanat a TRANSMISSION FLUID E zonou nee i cy AEE eet ry GA sere im Feta U Li sas Di IFT VALVES Pio 1 x E ex Je E JAR s is ro cor Jaee H 1 A T CLUTCH PRESSURE CONTROL SOLENOID VALVES G01818322 Fig 66 D Position Driving In 4th Hydraulic Flow D Position Shifting between 4th gear amp 5th gear As the speed of the vehicle reaches the prescribed value the PCM turns shift solenoid valves D ON and keeps A ON and B C and E OFF Shift solenoid valve D pressure SD in applied to the left side of the shift valve D Shift valve D is moved to the right side to uncover A T clutch pressure control solenoid valve C pressure to the 5th clutch A T clutch pressure control solenoid valve B pressure 56 changes to 4th clutch pressure 40 at shift valve B A T clutch pressure control solenoid valve C pressure 57 changes to SL at shift valve D and to SN at shift valve B and becomes 5th clutch pressure 50 at shift valve A The 4th and Sth clutches are engaged gently NOTE When used left or right indicates direction on the hydraulic circuit Wednesday March 12 2008 8 49 54 PM Page
179. id the result indicate a fail YES Go to step 6 NO Intermittent failure the system is OK at this time Check for poor connections or loose terminals at the 2nd clutch transmission fluid pressure switch and PCM If the tester indicates NOT COMPLETE return to step 4 and recheck Turn the ignition switch OFF Disconnect the 2nd clutch transmission fluid pressure switch connector Turn the ignition switch ON ID Measure the voltage between the 2nd clutch transmission fluid pressure switch connector terminal and body ground Is there about 5 V YES Replace the 2nd clutch transmission fluid pressure switch see 2ND CLUTCH TRANSMISSION FLUID PRESSURE SWITCH REPLACEMENT then go to step 11 NO Go to step 10 Wednesday March 12 2008 8 49 57 PM Page 191 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed 2ND CLUTCH TRANSMISSION FLUID PRESSURE SWITCH CONNECTOR OP2SW BLU RED V Wire side of female terminals G01818418 Fig 162 Measuring The Voltage Between The 2nd Clutch Transmission Fluid Pressure Switch Connector Terminal amp Body Ground 10 Measure the voltage between PCM connector terminal C13 and body ground Is there about 5 V YES Repair open in the wire between PCM connector terminal C13 and the 2nd clutch transmission fluid pressure switch go to step 11 NO Check for loose or poor connections at PCM connector terminal C13 If the connection is OK update the PCM
180. in DTCs MENU for a pass fail test of code P0731 Did the result indicate a fail YES Repair the 1st clutch or replace the transmission NO Intermittent failure the system is OK at this time If the tester indicates NOT COMPLETE return to step 1 and recheck DTC P0732 PROBLEM IN 2ND CLUTCH amp 2ND CLUTCH HYDRAULIC CIRCUIT NOTE Record all freeze data and review General Troubleshooting Information see GENERAL TROUBLESHOOTING INFORMATION before you troubleshoot Warm up the engine to normal operating temperature the radiator fan comes on Check to be sure that the transmission is filled to the proper level and check for fluid leaks Drain the ATF see DRAINING amp REFILLING through a strainer Inspect the ATF and strainer for metal debris or burnt fluid Has the ATF deteriorated YES Replace ATF see DRAINING amp REFILLING and test drive the vehicle under the same conditions as those indicated by the freeze data then recheck NO Go to step 4 Measure the line pressure see PRESSURE TEST Is the line pressure within service limits Wednesday March 12 2008 8 49 56 PM Page 164 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed YES Go to step 5 NO Repair the ATF pump and regulator valve or replace the transmission Measure the 2nd clutch pressure see PRESSURE TEST Is the 2nd clutch pressure within service limits YES Go to step 6 NO Shift va
181. inals G01818625 Fig 257 Removing The Transmission Range Switch Harness Connector From The Connector Bracket Wednesday March 12 2008 8 50 01 PM Page 324 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed Terminal Signal Terminal Signal _ ST a2 1a E Ee oe ee Oo 5 D E ATP RVS G01818626 Fig 258 Transmission Range Switch Harness Connector Terminal Specifications 2 Check for continuity between terminals at the harness connector There should be continuity between the terminals in the following table for each switch position Connector Terminal G01818627 Fig 259 Transmission Range Switch Harness Connector Continuity Test Table Wednesday March 12 2008 8 50 02 PM Page 325 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed 3 If there is no continuity between any terminals remove the transmission range switch cover and disconnect the connector at the switch IHANA el7ieigho G01818628 Fig 260 Identifying Transmission Range Switch Terminals Wednesday March 12 2008 8 50 02 PM Page 326 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed Terminal Signal Terminal Signal P E Fig 261 Transmission Range Switch Terminal Specifications G01818629 4 Check for continuity between terminals at the switch connector There should be continuity between the terminals in the following tabl
182. ine brackets on the transmission hanger with the bolts 24 Check the connector for rust dirt or oil and clean if necessary then connect the connector securely Wednesday March 12 2008 8 50 01 PM Page 315 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed 25 Install the transmission lower mount nuts 26 Install the transmission upper mount bracket bracket plate and ground cable then remove the transmission jack 27 Refill the transmission with ATF see step 4 on DRAINING amp REFILLING 28 Install the battery base then install the air cleaner housing and intake air duct 29 Install the battery tray battery and battery cover then secure the battery with its hold down bracket Connect the battery terminals 30 Install the splash shield TRANSMISSION GEAR SELECTION SWITCH TEST 1 Remove the center console cover see CENTER CONSOLE REMOVAL INSTALLATION 2 Disconnect transmission gear selection switch park pin switch connector Wednesday March 12 2008 8 50 01 PM Page 316 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed Terminal side of male terminals G01818507 Fig 251 Disconnecting Transmission Gear Selection Switch Park Pin Switch Connector Check for continuity between connector terminals No 3 and No 2 There should be continuity when shift lever in M position and no continuity when shift lever in any position other than M Check for cont
183. ine in the P position 15 Check the OBD STATUS in DTCs MENU for a pass fail test of code P0983 Did the result indicate a pass YES The problem has been corrected NO Return to step 1 and recheck DTC P0985 SHORT IN SHIFT SOLENOID VALVE E CIRCUIT NOTE e Record all freeze data and review General Troubleshooting Information see GENERAL TROUBLESHOOTING INFORMATION before you Wednesday March 12 2008 8 49 59 PM Page 249 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed troubleshoot e This code is caused by an electrical circuit problem and cannot be caused by a mechanical problem in the transmission Clear the DTC with the HDS Start the engine in the P position Check that DTC P0985 recurs Is DTC P0985 indicated YES Go to step 7 NO Go to step 4 Select SHIFT SOL TEST in MISC TEST MENU then carry out A T SHIFT SOL E test in SHIFT SOL TEST MENU with the HDS Start the engine in the P position Check the OBD STATUS in DTCs MENU for a pass fail test of code P0985 Did the result indicate a fail YES Go to step 7 NO Intermittent failure the system is OK at this time Check the YEL wire for an intermittent short to ground between the shift solenoid valve E and PCM If the tester indicates NOT COMPLETE return to step 4 and recheck 7 Turn the ignition switch OFF Jump the SCS line with the HDS Disconnect PCM connectors A 31P and C 22P Measure the resistance betw
184. inuity between connector terminals No 7 and No 2 There should be continuity when shift lever pushed toward to upshift position and no continuity with released shift lever to neutral position Check for continuity between connector terminals No 8 and No 2 There should be continuity when shift lever pulled toward to downshift position and no continuity Wednesday March 12 2008 8 50 01 PM Page 317 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed with released shift lever to neutral position 7 Replace the transmission gear selection switch park pin switch assembly if the switch test was failed TRANSMISSION GEAR SELECTION SWITCH REPLACEMENT 1 Remove the shift lever assembly see SHIFT LEVER 2 Disconnect transmission gear selection switch park pin switch connector A then remove the connector from the shift lever bracket base G01818508 Fig 252 Disconnecting Transmission Gear Selection Switch Park Pin Switch Connector 3 Remove the A T gear position indicator panel light bulb socket B then remove the bulb C from the Wednesday March 12 2008 8 50 01 PM Page 318 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed socket Remove the transmission gear selection switch park pin switch D by releasing the lock tabs E Install the new switch assembly in the shift lever bracket base Install the bulb in the socket then install the socket in the br
185. inuity between transmission gear selection switch connector terminal No 8 and body ground Is there continuity YES Repair short to ground in the wire between PCM connector terminal D9 and the transmission gear selection switch connector then go to step 12 NO Check for loose or poor connections at PCM connector terminal D9 If the connection is OK update the PCM if it does not have the latest software or substitute a known good PCM see PCM UPDATING amp SUBSTITUTION FOR TESTING then recheck If the symptom indication goes away with a known good PCM replace the original PCM Wednesday March 12 2008 8 49 57 PM Page 187 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed TRANSMISSION GEAR SELECTION SWITCH PARK PIN SWITCH CONNECTOR Wire side of female terminals G01818416 Fig 160 Checking For Continuity Between Transmission Gear Selection Switch Connector Terminal No 8 amp Body Ground Clear the DTC with the HDS Start the engine in the P position wait for more than 10 seconds then shift to the M position Push the shift lever toward shiftup position slowly and return to neutral position repeat this test 10 times or more Pull the shift lever toward shiftdown position slowly and return to neutral position repeat this test 10 times or more Check the OBD STATUS in DTCs MENU for a pass fail test of code P0816 Did the result indicate a pass YES The problem has be
186. ion fluid pressure switch connector Turn the ignition switch ON ID Check the 2nd PRES SWITCH signal with the HDS in the A T data list Is the 2nd PRES SWITCH OFF YES Replace the 2nd clutch transmission fluid pressure switch see 2ND CLUTCH TRANSMISSION FLUID PRESSURE SWITCH REPLACEMENT then go to step 13 NO Go to step 9 Turn the ignition switch OFF Jump the SCS line with the HDS Disconnect PCM connector C 22P Check for continuity between PCM connector terminal C13 and body ground Is there continuity YES Repair short to ground in the wire between PCM connector terminal C13 and the 2nd clutch transmission fluid pressure switch then go to step 13 NO Update the PCM if it does not have the latest software or substitute a known good PCM see PCM UPDATING amp SUBSTITUTION FOR TESTING then recheck If the symptom indication goes away with a known good PCM replace the original PCM Wednesday March 12 2008 8 49 57 PM Page 189 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed PCM CONNECTOR C 22P eiee afajnfehahals PANIES VA OP2SW BLU RED Wire side of female terminals G01818417 Fig 161 Checking For Continuity Between PCM Connector Terminal C13 amp Body Ground Clear the DTC with the HDS Start the engine and warm it up to normal operating temperature the radiator fan comes on Drive the vehicle in 2nd gear in the M position for more tha
187. iplex integrated control system communication line between the multiplex integrated control unit and gauge contro module see page 22 105 Check the interlock system shift lock system reverse lock system circuit see page 14 249 Check the interlock system shift lock system reverse lock system circuit see page 14 249 Check the interlock system key interlock system circuit see page 14 250 Fig 14 Symptom Troubleshooting Index 1 Of 11 Wednesday March 12 2008 8 49 53 PM Page 15 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed 2004 Acura TSX Low ATF level Shift cable broken or out of adjustment Joint in shift cable and transmission or body worn ATF pump worn or binding Regulator valve stuck or spring worn ATF strainer clogged Mainshaft worn or damaged Final gears worn or damaged Transmission to engine assembly error Axle disengaged Engine runs but vehicle does not move in any gear 1st accumulator defective 1st gears worn or damaged 1st clutch defective Vehicle moves in 1 the R but notin 2 the D or D3 3 position or the M position in 1st gear G01818269 Check the ATF level and check the ATF cooler lines for leakage and loose connections If necessary flush the ATF cooler lines Check for a loose shift cable at the shift lever and the transmission control shaft Improper alignment of ATF pump and torque converter housing may cause ATF pump seizure T
188. ire for an intermittent short to ground between shift solenoid valve A and PCM If the tester indicates NOT COMPLETE return to step 4 and recheck 7 Turn the ignition switch OFF Jump the SCS line with the HDS 9 Disconnect PCM connectors A 31P and C 22P Measure the resistance between PCM connector terminals C6 and A8 or A9 Is there less than 12 ohm YES Go to step 11 NO Update the PCM if it does not have the latest software or substitute a known good PCM see PCM UPDATING amp SUBSTITUTION FOR TESTING then recheck If the symptom indication goes away with a known good PCM replace the original PCM Wednesday March 12 2008 8 49 58 PM Page 226 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed PCM CONNECTORS SHA BLU BLK LG2 BRN YEL LG1 BRN YEL GPi EUe plise ol Vishehspe 7pelislao2 aholahshralis Zaanen Virhek 7 A 31P C 22P Wire side of female terminals G01818442 Fig 186 Measuring The Resistance Between PCM Connector Terminals C6 amp A8 Or A9 11 Disconnect the shift solenoid harness connector at the transmission housing 12 Check for continuity between PCM connector terminals C6 and A8 or A9 Is there continuity YES Repair short to ground in the wire between PCM connector terminal C6 and the shift solenoid harness connector then go to step 13 NO Check shift solenoid valve A and check for a short in the shift solenoid harness in the transmission
189. is MCTA 5 Speed G01818633 Fig 265 Disconnecting The Transmission Range Switch Connector 5 Remove the transmission range switch and install the new switch 6 Make sure the control shaft is in the N position If necessary move the shift lever to the N position Wednesday March 12 2008 8 50 02 PM Page 330 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed NOTE Do not use the control shaft to adjust the shift position If the control shaft tips are squeezed together it will cause a faulty signal or position due to play between the control shaft and the switch G01818634 Fig 266 Moving The Shift Lever To The N Position 7 Align the cutouts A on the rotary frame with the neutral positioning cutouts B on the transmission range switch C then put a 2 0 mm 0 08 in feeler gauge blade D in the cutouts to hold the switch in Wednesday March 12 2008 8 50 02 PM Page 331 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed the N position NOTE Be sure to use a 2 0 mm 0 08 in blade or equivalent to hold the switch in the N position mZ pas D G01818635 Fig 267 Aligning The Cutouts On The Rotary Frame With The Neutral Positioning Cutouts On The Transmission Range Switch Install the transmission range switch A gently on the control shaft B with holding it in the N position with the 2 0 mm 0 08 in blade C Wednesday March 12 2008 8 50
190. ive the vehicle in the D position in all five gears at speeds over 12 mph 20 km h for more than 20 seconds then slow down to a stop Check the OBD STATUS in DTCs MENU for a pass fail test of code P0757 Did the result indicate a pass YES The problem has been corrected NO Return to step 1 and recheck DTC P0761 SHIFT SOLENOID VALVE C STUCK OFF NOTE Record all freeze data and review General Troubleshooting Information see GENERAL TROUBLESHOOTING INFORMATION before you troubleshoot Warm up the engine to normal operating temperature the radiator fan comes on Check to be sure that the transmission is filled to the proper level and check for fluid leaks Drain the ATF see DRAINING amp REFILLING through a strainer Inspect the ATF and strainer for metal debris or burnt fluid Has the ATF deteriorated YES Replace ATF see DRAINING amp REFILLING and go to step 4 NO Go to step 8 Clear the DTC with the HDS Test drive the vehicle in the D position in all five gears at speeds over 12 mph 20 km h for more than 20 seconds then slow down to a stop Retest drive the vehicle in the D position in all five gears at speeds over 12 mph 20 km h for more than 20 seconds then slow down to a stop Check the OBD STATUS in DTCs MENU for a pass fail test of code P0761 Did the result indicate a fail YES Go to step 8 NO Intermittent failure the system is OK at this time If the tester indicate
191. ive the vehicle in the D position in all five gears at speeds over 12 mph 20 km h for more than 20 seconds then slow down to a stop Retest drive the vehicle in the D position in all five gears at speeds over 12 mph 20 km h for more than 20 seconds then slow down to a stop Check the OBD STATUS in DTCs MENU for a pass fail test of code P0797 Did the result indicate a pass YES The problem has been corrected NO Return to step 1 and recheck DTC P0812 OPEN IN TRANSMISSION RANGE SWITCH ATP RVS SWITCH CIRCUIT Wednesday March 12 2008 8 49 56 PM Page 180 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed NOTE e Record all freeze data and review General Troubleshooting Information see GENERAL TROUBLESHOOTING INFORMATION before you troubleshoot e This code is caused by an electrical circuit problem and cannot be caused by a mechanical problem in the transmission Turn the ignition switch ON ID Shift to the R position and verify the A T R SWITCH signal with the HDS in the A T data list Is the A T R SWITCH ON YES Go to step 3 NO Inspect the end of the selector control shaft see step 6 of TRANSMISSION RANGE SWITCH TEST adjust the shift cable see SHIFT CABLE then recheck If problem still exists go to step 4 Check the REVERSE SWITCH signal with the HDS Is the REVERSE SWITCH ON YES Intermittent failure the system is OK at this time Check for poor connections or loose
192. lear the DTC with the HDS Test drive the vehicle in the D position in all five gears at speeds over 12 mph 20 km h for more than 20 seconds then slow down to a stop Retest drive the vehicle in the D position in all five gears at speeds over 12 mph 20 km h for more than 20 seconds then slow down to a stop Check the OBD STATUS in DTCs MENU for a pass fail test of code P0756 Did the result indicate a pass YES The problem has been corrected NO Return to step 1 and recheck DTC P0757 SHIFT SOLENOID VALVE B STUCK ON NOTE Record all freeze data and review General Troubleshooting Information see GENERAL TROUBLESHOOTING INFORMATION before you troubleshoot 1 Warm up the engine to normal operating temperature the radiator fan comes on Check to be sure that the transmission is filled to the proper level and check for fluid leaks Drain the ATF see DRAINING amp REFILLING through a strainer Inspect the ATF and strainer for 10 metal debris or burnt fluid Has the ATF deteriorated YES Replace ATF see DRAINING amp REFILLING and go to step 4 NO Go to step 8 Clear the DTC with the HDS Test drive the vehicle in the D position in all five gears at speeds over 12 mph 20 km h for more than 20 seconds then slow down to a stop Retest drive the vehicle in the D position in all five gears at speeds over 12 mph 20 km h for more than 20 seconds then slow down to a stop
193. lenoid valves Do not hold the connector to remove the shift solenoid valve Wednesday March 12 2008 8 50 00 PM Page 290 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed G01818487 Fig 231 Removing The Shift Solenoid Valves 14 Install the new O rings two O rings per solenoid valve F on the replacement solenoid valve 15 Install the shift solenoid valves C D and E While holding the shift solenoid valve body be sure to install the solenoid valves until their mounting brackets contact the servo body 16 Install the shift solenoid valves A and B While holding the shift solenoid valve body be sure to install Wednesday March 12 2008 8 50 00 PM Page 291 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed the solenoid valves until their mounting brackets contact the bracket of the installed solenoid Install the solenoid mounting bolts H and tighten them NOTE Do not install the solenoid valves A and B before installing the shift solenoid valves D and E If solenoid valves A and B are installed before solenoid valves D and E it may damage the hydraulic control system 17 Connect the shift solenoid valve D connector G with the ATF temperature sensor 18 Connect the solenoid valve A connector BLU wire solenoid valve B connector ORN wire solenoid valve C connector GRN wire and solenoid valve E connector RED wire 19 Install the shift solenoid valve cover
194. lock up shift valve and the 1st and 3rd accumulators REGULATOR VALVE TORQUE CONVERTER 26 CHECK VALVE Ej REGULATOR VALVE BODY LOCK UP SHIFT VALVE G01818307 Fig 51 Identifying Regulator Valve Body Components Regulator Valve The regulator Valve maintains a constant hydraulic pressure from the ATF pump to the hydraulic control system while also furnishing fluid to the lubrication system and torque converter The fluid from the ATF Wednesday March 12 2008 8 49 53 PM Page 50 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed pump flows through B and C Fluid entering from B flows through the valve orifice to the A cavity This pressure of the A cavity pushes the regulator valve to the right side and this movement of the regulator valve uncovers the fluid port to the torque converter and the relief valve The fluid flows out to the torque converter and the relief valve and the regulator valve moves to the left side According to the level of the hydraulic pressure through B the position of the regulator valve changes and the amount of fluid from C through torque converter also changes This operation is continued maintaining the line pressure NOTE When used left or right indicates direction on the illustration below ORIFICE REGULATOR VALVE G01818308 Fig 52 Identifying Regulator Valve Wednesday March 12 2008 8 49 53 PM Page 51 2004 Acura TSX 2004 AUTOMATIC TRANSMISS
195. lve C and PCM If the tester indicates NOT COMPLETE return to step 4 and recheck 7 Turn the ignition switch OFF Jump the SCS line with the HDS Disconnect PCM connectors A 31P and C 22P Measure the resistance between PCM connector terminals C2 and A8 or A9 Is there less than 12 ohm YES Go to step 11 NO Update the PCM if it does not have the latest software or substitute a known good PCM see PCM UPDATING amp SUBSTITUTION FOR TESTING then recheck If the symptom indication goes away with a known good PCM replace the original PCM Wednesday March 12 2008 8 49 58 PM Page 238 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed PCM CONNECTORS LG2 BRN YEL LG1 BRN YEL 2 3 4 s 6 7 lie s Ae zsmin Arieta A 31P C 22P Wire side of female terminals G01818450 Fig 194 Measuring The Resistance Between PCM Connector Terminals C2 amp A8 Or A9 11 Disconnect the shift solenoid harness connector at the transmission housing 12 Check for continuity between PCM connector terminals C2 and A8 or A9 Is there continuity YES Repair short to ground in the wire between PCM connector terminal C2 and the shift solenoid harness connector then go to step 13 NO Check shift solenoid valve C and check for a short in the shift solenoid harness in the transmission see SHIFT SOLENOID VALVE TEST Replace shift solenoid valve C and or shift solenoid harness then go to step 13
196. lves A and B are stuck Repair these valves and hydraulic circuit or replace the transmission Clear the DTC with the HDS Test drive the vehicle for several minutes under the same conditions as those indicated by the freeze data or drive in the 2nd gear in the M position at 10 mph 16 km h for 20 seconds Check the OBD STATUS in DTCs MENU for a pass fail test of code P0732 Did the result indicate a fail YES Repair the 2nd clutch or replace the transmission NO Intermittent failure the system is OK at this time If the tester indicates NOT COMPLETE return to step and recheck DTC P0733 PROBLEM IN 3RD CLUTCH amp 3RD CLUTCH HYDRAULIC CIRCUIT NOTE Record all freeze data and review General Troubleshooting Information see GENERAL TROUBLESHOOTING INFORMATION before you troubleshoot Warm up the engine to normal operating temperature the radiator fan comes on Check to be sure that the transmission is filled to the proper level and check for fluid leaks Drain the ATF see DRAINING amp REFILLING through a strainer Inspect the ATF and strainer for metal debris or burnt fluid Has the ATF deteriorated YES Replace ATF see DRAINING amp REFILLING and test drive the vehicle under the same conditions as those indicated by the freeze data then recheck NO Go to step 4 Measure the line pressure see PRESSURE TEST Is the line pressure within service limits YES Go to step 5 NO Repair th
197. m is OK at this time If the tester indicates NOT COMPLETE return to step 1 and recheck DTC P0741 TORQUE CONVERTER CLUTCH HYDRAULIC CIRCUIT STUCK OFF NOTE Record all freeze data and review General Troubleshooting Information see GENERAL TROUBLESHOOTING INFORMATION before you troubleshoot 1 Warm up the engine to normal operating temperature the radiator fan comes on Check to be sure that the transmission is filled to the proper level and check for fluid leaks Drain the ATF see DRAINING amp REFILLING through a strainer Inspect the ATF and strainer for metal debris or burnt fluid Has the ATF deteriorated YES Replace ATF see DRAINING amp REFILLING and test drive the vehicle under the same conditions as those indicated by the freeze data then recheck Wednesday March 12 2008 8 49 56 PM Page 167 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed NO Go to step 4 Clear the DTC with the HDS Select SHIFT SOL TEST in MISC TEST MENU then carry out A T SHIFT SOL E test in SHIFT SOL TEST MENU with the HDS Is a clicking sound heard YES Go to step 6 NO Replace shift solenoid valve E see SHIFT SOLENOID VALVE REPLACEMENT then go to step 10 Run the engine until the engine coolant temperature reaches 176 F 80 C Select LINEAR SOL TEST in MISC TEST MENU then carry out LINEAR SOL A TEST in LINEAR SOL TEST MENU Is the system OK YES Go t
198. mechanism operates in 3rd 4th sportshift mode and 5th gears D3 DRIVE For rapid acceleration at highway speeds and general driving up hill and 1st through 3rd down hill driving starts off in 1st shifts automatically to 2nd then 3rd depending on vehicle speed and throttle position Downshifts through 2nd to 1st on deceleration to stop The lock up mechanism operates in 2nd and 3rd gears G01818279 Fig 25 Identifying Gear Selections AUTOMATIC TRANSAXLE A T GEAR POSITION INDICATOR The A T gear position indicator in the instrument panel shows which shift lever position has been selected without having to look down at the shift lever With the shift lever in the M sequential sportshift mode position the shift indicator between the speedometer and tachometer in the instrument panel will display the gear selected CLUTCHES amp GEARS The 5 speed automatic transmission uses hydraulically actuated clutches to engage or disengage the transmission gears When hydraulic pressure is introduced into the clutch drum the clutch piston moves This presses the friction discs and steel plates together locking them so they don t slip Power is then transmitted through the engaged clutch pack to its hub mounted gear Likewise when the hydraulic pressure is bled from the clutch pack the piston releases the friction discs and steel plates and they are free to slide past each other This allows the gear to spin independently on its shaf
199. minals No 1 amp No 2 Clear the DTC with the HDS Test drive the vehicle for several minutes in the D position in all five gears Check the OBD STATUS in DTCs MENU for a pass fail test of code P0970 Did the result indicate a pass YES The problem has been corrected NO Return to step 1 and recheck DTC P0971 PROBLEM IN A T CLUTCH PRESSURE CONTROL SOLENOID VALVE C Wednesday March 12 2008 8 49 57 PM Page 222 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed NOTE e Record all freeze data and review General Troubleshooting Information see GENERAL TROUBLESHOOTING INFORMATION before you troubleshoot e This code is caused by an electrical circuit problem and cannot be caused by a mechanical problem in the transmission Clear the DTC with the HDS Check that DTC P0971 recurs Is DTC P0971 indicated YES Go to step 6 NO Go to step 3 Select P CTRL SOL CONTROL in MISC TEST MENU then select P CONTROL SOL C in P CTRL SOL CTRL MENU with the HDS Drive with the A T clutch pressure control solenoid valve C at 0 2 A in SOL C CONTROL menu Check the OBD STATUS in DTCs MENU for a pass fail test of code P0971 Did the result indicate a fail YES Go to step 6 NO Intermittent failure the system is OK at this time Check for poor connections or loose terminals at the A T clutch pressure control solenoid valve C and PCM If the tester indicates NOT COMPLETE return to step 3 and re
200. mp No 3 20 Connect the countershaft speed sensor connector 21 Measure the voltage between PCM connector terminals A18 and A8 or A9 Is the voltage 0 V or about 5 V YES Go to step 22 NO Replace the countershaft speed sensor see COUNTERSHAFT SPEED SENSOR REPLACEMENT then go to step 30 Wednesday March 12 2008 8 49 56 PM Page 154 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed PCM CONNECTOR A 31P LG2 BRN YEL LG BRN YEL ee alelslals ei Uie V eA E E V zzril A a NC BLK BLU Wire side of female terminals G01818404 Fig 148 Measuring The Voltage Between PCM Connector Terminals A18 amp A8 Or A9 22 Shift to the P position Start the engine and let it idle 23 Shift to the D position and measure the voltage between PCM connector terminals A18 and A8 or A9 Is there 1 5 V 3 5 V YES Update the PCM if it does not have the latest software or substitute a known good PCM see PCM UPDATING amp SUBSTITUTION FOR TESTING then recheck If the symptom indication goes away with a known good PCM replace the original PCM NO Replace the countershaft speed sensor see COUNTERSHAFT SPEED SENSOR REPLACEMENT then go to step 30 Wednesday March 12 2008 8 49 56 PM Page 155 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed PCM CONNECTOR A 31P LG2 BRN YEL LG1 BRN YEL E iG WD kA Aenhshe Aisheja Y Asjes 141 031 NC BLK BLU
201. mp C REPLACEMENT 1 Disconnect the A T clutch pressure control solenoid valves B and C connectors 2 Remove the A T clutch pressure control solenoid valves B and C Wednesday March 12 2008 8 50 01 PM Page 302 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed 12 N m 1 2 kgf m 8 7 Ibf ft G01818495 Fig 239 Removing The A T Clutch Pressure Control Solenoid Valves B amp C 3 Remove the ATF joint pipes D O rings E and gasket A 4 Clean the mounting surface and fluid passages of the transmission housing Wednesday March 12 2008 8 50 01 PM Page 303 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed Install the new gasket on the transmission housing and install the ATF joint pipes Install new O rings over the ATF joint pipes Install new A T clutch pressure control solenoid valves B and C Check A T clutch pressure control solenoid valves B and C connectors for rust dirt or oil and clean if necessary then connect the connectors securely MAINSHAFT SPEED SENSOR REPLACEMENT 1 Remove the intake air duct and air cleaner housing 2 Disconnect the mainshaft speed sensor connector and remove the mainshaft speed sensor G01818496 Fig 240 Removing The Mainshaft Speed Sensor Install the new O ring A on the new mainshaft speed sensor B then install the mainshaft speed sensor in the transmission housing 4 Check the connector for rust dirt
202. n housing see ATF TEMPERATURE SENSOR TEST amp REPLACEMENT NO Repair open in the wire between PCM connector terminal A23 and the shift solenoid harness connector then go to step 8 Wednesday March 12 2008 8 49 55 PM Page 109 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed SHIFT SOLENOID HARNESS CONNECTOR ATFT RED YEL SG2 GRN YEL Wire side of female terminals G01818364 Fig 108 Measuring The Voltage Between Shift Solenoid Harness Connector Terminals No 6 amp No 7 7 Measure the voltage between PCM connector terminal C14 and body ground Is there about 5 V YES Repair open in the wire between PCM connector terminal C14 and the shift solenoid harness connector then go to step 8 NO Check for loose or poor connections at PCM connector terminal C14 If the connection is OK update the PCM if it does not have the latest software or substitute a known good PCM see PCM UPDATING amp SUBSTITUTION FOR TESTING then recheck If the symptom indication goes away with a known good PCM replace the original PCM Wednesday March 12 2008 8 49 55 PM Page 110 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed PCM CONNECTOR C 22P 1 2 Li sj4is e 7 9 10 11 fr2itshtalis hrshsleol ATFT RED YEL Wire side of fernale terminals G01818365 Fig 109 Measuring The Voltage Between PCM Connector Terminal C14 amp Body Ground 8 Clear the DTC with t
203. n 5 seconds then upshift to 4th gear and drive in 4th gear for more than 5 seconds Slow down to a stop Check the OBD STATUS in DTCs MENU for a pass fail test of code P0842 Did the result indicate a pass YES The problem has been corrected NO Return to step 1 and recheck DTC P0843 OPEN IN 2ND CLUTCH TRANSMISSION FLUID PRESSURE SWITCH CIRCUIT OR 2ND CLUTCH TRANSMISSION FLUID PRESSURE SWITCH STUCK OFF Wednesday March 12 2008 8 49 57 PM Page 190 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed e Record all freeze data and review General Troubleshooting Information see GENERAL TROUBLESHOOTING INFORMATION before you troubleshoot e This code is caused by an electrical circuit problem and cannot be caused by a mechanical problem in the transmission Clear the DTC with the HDS Start the engine and warm it up to normal operating temperature the radiator fan comes on Shift into the M position 2nd gear while pressing the brake pedal and verify that the SHIFT MAP NUMBER indicates 2nd with the HDS in the A T data list Check the 2nd PRES SWITCH signal with the HDS in the A T data list Is the 2nd PRES SWITCH ON YES Go to step 4 NO Go to step 6 Drive the vehicle in 2nd gear in the M position for more than 5 seconds then upshift to 4th gear and drive in 4th gear for more than 5 seconds Slow down to a stop Check the OBD STATUS in DTCs MENU for a pass fail test of code P0843 D
204. n PCM Connector Terminal C10 amp Body Ground Clear the DTC with the HDS Start the engine and warm it up to normal operating temperature the radiator fan comes on Drive the vehicle in 3rd gear in the M position for more than 5 seconds then upshift to 4th gear and drive in 4th gear for more than 5 seconds Slow down to a stop 13 Check the OBD STATUS in DTCs MENU for a pass fail test of code P0848 Wednesday March 12 2008 8 49 57 PM Page 198 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed Did the result indicate a pass YES The problem has been corrected NO Return to step 1 and recheck DTC P0957 SHORT IN TRANSMISSION GEAR SELECTION SWITCH CIRCUIT OR TRANSMISSION GEAR SELECTION SWITCH STUCK ON NOTE e Record all freeze data and review General Troubleshooting Information see GENERAL TROUBLESHOOTING INFORMATION before you troubleshoot e This code is caused by an electrical circuit problem and cannot be caused by a mechanical problem in the transmission Turn the ignition switch ON ID Shift to the P position Verify the transmission gear selection switch sequential sportshift mode switch inputs with the HDS in the A T data list Is sequential sportshift mode SW ON YES Go to step 4 NO Intermittent failure the system is OK at this time Check the BRN wire for an intermittent short to ground between the transmission gear selection switch and PCM Turn the igniti
205. n Switch Connector Terminal No 3 amp Body Ground Clear the DTC with the HDS Start the engine in the P position wait for more than 10 seconds then shift to the M position Push the shift lever toward shiftup position slowly and return to neutral position repeat this test 10 times or more Pull the shift lever toward shiftdown position slowly and return to neutral position repeat this test 10 times or more Check the OBD STATUS in DTCs MENU for a pass fail test of code P0957 Did the result indicate a pass YES The problem has been corrected NO Return to step and recheck DTC P0958 OPEN IN TRANSMISSION GEAR SELECTION SWITCH CIRCUIT OR Wednesday March 12 2008 8 49 57 PM Page 200 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed TRANSMISSION GEAR SELECTION SWITCH STUCK OFF NOTE e Record all freeze data and review General Troubleshooting Information see GENERAL TROUBLESHOOTING INFORMATION before you troubleshoot e This code is caused by an electrical circuit problem and cannot be caused by a mechanical problem in the transmission Turn the ignition switch ON II Shift to the M position Verify the transmission gear selection switch sequential sportshift mode switch inputs with the HDS in the A T data list Is sequential sportshift mode SW OFF YES Go to step 4 NO Intermittent failure the system is OK at this time Check for poor connections or loose
206. nal then disconnect the battery positive terminal Remove the battery hold down bracket then remove the battery cover battery and battery tray Remove the intake air duct and air cleaner housing Loosen the two bolts securing the battery base from under the vehicle and remove the two bolts securing the battery base in the engine compartment then remove the battery base Remove the ground cable A transmission upper mount bracket B and bracket plate C Wednesday March 12 2008 8 50 00 PM Page 279 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed 10 x 1 25 mm 54 N m 5 5 kgf m 40 Ibf ft Replace 6x1 0mm 12 N m 1 2 kgf m 8 7 Ibf ft 12 x 1 25 mm 54 N m 5 5 kgf m 40 Ibf ft G01818477 Fig 221 Removing The Ground Cable Transmission Upper Mount Bracket amp Bracket Plate 12 Place a transmission jack under the transmission and remove the transmission lower mount nuts Wednesday March 12 2008 8 50 00 PM Page 280 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed 10 x 1 25 mm 44 N m 4 5 kgf m 33 Ibf ft G01818478 Fig 222 Removing The Transmission Lower Mount Nuts Lift the transmission up to create clearance between the transmission and front subframe with the jack Remove the ATF dipstick and remove the bolts securing the ATF cooler inlet line brackets A and ATF dipstick guide pipe B from the transmission hanger C Wed
207. nd The shift lever can be in any position Is there battery voltage YES Faulty A T gear position indicator in the gauge control module replace the gauge control module NO Go to step 3 GAUGE CONTROL MODULE CONNECTOR B 18P HARAOMAHUE tohi hzha lal 716 1718 MET INH LT GRN Wire side of female terminals G01818623 Fig 255 Measuring The Voltage Between Gauge Control Module Connector Terminal B11 amp Body Ground 3 Measure the voltage between PCM connector terminal D10 and body ground Is there battery voltage YES Repair open or short in the wire between PCM connector terminal D10 and the gauge control module connector terminal B11 NO Check for loose terminal fit in the PCM connectors Check the LT GRN wire for a short to ground between the gauge control module and PCM If necessary substitute a known good PCM and recheck Wednesday March 12 2008 8 50 01 PM Page 322 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed PCM CONNECTOR D 17P Wire side of female terminals G01818624 Fig 256 Measuring The Voltage Between PCM Connector Terminal D10 amp Body Ground TRANSMISSION RANGE SWITCH TEST 1 Remove the transmission range switch harness connector A from the connector bracket B then disconnect the connector Wednesday March 12 2008 8 50 01 PM Page 323 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed Terminal side of male term
208. nding control piali Shift Solenoid Valve D Switch Signal Shift Solenoid Valve E Automatic SE 5 speed and Reverse A T Clutch Pressure ao A Control Solenoid Valve A ransmission Gear Selection Switch Signal Clutch OSSUR A T Clutch Pressure Contro Control Solenoid Valve B e ee Mainshaft Speed A T Clutch Pressure Sensor Signal Control Solenoid Valve C Countershaft Speed Lock up ae Signal j Lock up Control ON OFF aoun 2nd d Clutch Tra Transmission Self diagnosis Lock up Fluid Pressure Switch Signal Fail safe Function Vehicle Speed Signal Conditions a Communication and Data Link Connector S E Clutch Transmission l Output Function e Fluid Pressure Switch Signal J Shift Lock Control Ee Reverse Lock Shift Lock Solenoid S rake Pedal Position Control witch Signal re G01818288 Fig 34 Electronic Control System Schematic Electronic Controls Location Wednesday March 12 2008 8 49 53 PM Page 38 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed UNDER DASH FUSE RELAY BOX LA RN AA SRE s3 Ii DATA LINK CONNECTOR DLC POWERTRAIN CONTROL MODULE PCM PARK PIN SWITCH TRANSMISSION SHIFT LOCK SOLENOID GEAR SELECTION SWITCH 2ND CLUTCH COUNTERSHAFT TRANSMISSION FLUID SPEED SENSOR orl PRESSURE SWITCH A T CLUTCH PRESSURE CONTROL SOLENOID VALVE A TRANSMISSION RANGE SWITCH 3RD CLUTCH TRANS
209. nes Inspect the mainshaft and countershaft for wear or damage Replace the torque converter Vibration in all shift lever positions G01818276 Drive plate defective or transmission misassembled Check for a misinstalled damaged drive plate Set idle rpm in gear to the specified idle speed If still no good adjust the engine and transmission mounts as outlined in the engine section of this service manual Fig 22 Symptom Troubleshooting Index 9 Of 11 Wednesday March 12 2008 8 49 53 PM Page 23 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed Shift lever does not operate smoothly Transmission does not shift into P position Lock up clutch does not disengage Unstable lock up clutch operation G01818277 Transmission range switch defective or out of adjustment Shift cable broken or out of adjustment Joint in shift cable and transmission or body worn Shift cable broken or out of adjustment Joint in shift cable and transmission or body worn Park mechanism defective Shift solenoid valve E defective A T clutch pressure control solenoid valve A defective Torque converter clutch piston defective Lock up shift valve defective Lock up control valve defective Shift solenoid valve E defective A T clutch pressure control solenoid valve A defective Torque converter clutch piston defective Torque converter check valve defective Lock up shift v
210. nesday March 12 2008 8 49 57 PM Page 214 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed pressure control solenoid valve B then go to step 12 A T CLUTCH PRESSURE CONTROL SOLENOID VALVE B CONNECTOR LS B BRN WHT Wire side of female terminals G01818434 Fig 178 Measuring The Voltage Between A T Clutch Pressure Control Solenoid Valve B Connector Terminals No 1 amp No 2 12 Clear the DTC with the HDS 13 Test drive the vehicle for several minutes in the D position in all five gears 14 Check the OBD STATUS in DTCs MENU for a pass fail test of code P0966 Did the result indicate a pass YES The problem has been corrected NO Return to step 1 and recheck DTC P0967 PROBLEM IN A T CLUTCH PRESSURE CONTROL SOLENOID VALVE B Wednesday March 12 2008 8 49 57 PM Page 215 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed e Record all freeze data and review General Troubleshooting Information see GENERAL TROUBLESHOOTING INFORMATION before you troubleshoot e This code is caused by an electrical circuit problem and cannot be caused by a mechanical problem in the transmission Clear the DTC with the HDS Check that DTC P0967 recurs Is DTC P0967 indicated YES Go to step 6 NO Go to step 3 Select P CTRL SOL CONTROL in MISC TEST MENU then select P CONTROL SOL B in P CTRL SOL CTRL MENU with the HDS Drive with the A T clutch pressure control sole
211. nesday March 12 2008 8 50 00 PM Page 281 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed 6 x 1 0 mm 12 N m 1 2 kgf m 8 7 Ibf ft 6x 1 0mm 12 N m 1 2 kgf m 8 7 Ibf ft G01818479 Fig 223 Removing Components 15 Remove the harness clamp D than remove the ATF dipstick guide pipe 16 Disconnect the shift solenoid harness connector Wednesday March 12 2008 8 50 00 PM Page 282 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed 6 x 1 0mm 12 N m 1 2 kgf m 8 7 Ibf ft G01818480 Fig 224 Removing The Shift Solenoid Valve Cover Dowel Pins amp Gasket 17 Remove the shift solenoid valve cover A dowel pins B and gasket C 18 Remove the shift solenoid harness connector Wednesday March 12 2008 8 50 00 PM Page 283 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed G01818481 Fig 225 Removing The Shift Solenoid Harness Connector amp Identifying Valves 19 Measure shift solenoid valves resistance between shift solenoid harness connector terminals below and body ground e No 1 GRN Shift Solenoid Valve C e No 2 ORN Shift Solenoid Valve B e No 3 RED Shift Solenoid Valve E e No 5 BLU Shift Solenoid Valve A e No 8 YEL Shift Solenoid Valve D Wednesday March 12 2008 8 50 00 PM Page 284 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed Standard Resistance 12 25 ohm
212. ng shift solenoid pressure to the shift valves moves the position of the shift valve and switches the port of the hydraulic circuit The PCM also controls A T clutch pressure control solenoid valves A B and C The A T clutch pressure control solenoid valves regulate hydraulic pressure and apply the pressure to the clutches to engage smoothly The clutches receive optimum clutch pressure which is regulated by the A T clutch pressure control solenoid valves for comfortable driving and shifting under all conditions Wednesday March 12 2008 8 49 54 PM Page 54 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed PORT DESCRIPTION OF PRESSURE DESCRIPTION OF PRESSURE NO 1 LINE SHIFT SOLENOID VALVE B 3 LINE Er SHIFT SOLENOID VALVE C 3 Une oO SHIFT SOLENOID VALVE D 4 LINE SHIFT SOLENOID VALVE E 4 UNE 1ST CLUTCH LINE 2ND CLUTCH LINE 3RD CLUTCH LINE or A T CLUTCH PRESSURE 4TH CLUTCH CONTROL SOLENOID VALVE A LINE 5TH CLUTCH i LINE A T CLUTCH PRESSURE CONTROL SOLENOID VALVE A LINE _ A T CLUTCH PRESSURE CONTROL SOLENOID VALVE A LINE A T CLUTCH PRESSURE CONTROL SOLENOID VALVE B LINE A T CLUTCH PRESSURE CONTROL SOLENOID VALVE C une 90 TORQUE CONVERTER LINE 91 TORQUE CONVERTER LINE 92 TORQUE CONVERTER __ LINE or A T CLUTCH PRESSURE 93 ATF COOLER _ CONTROL SOLENOID VALVE B LINE or A T CLUTCH PRESSURE 94 TORQUE CONVERTER CONTROL SOLENOID VALVE A or B A T CLUTCH PRESSURE CONTROL 95 LUBRICATION SOLENO
213. noid valve B at 0 2 A in SOL B CONTROL menu Check the OBD STATUS in DTCs MENU for a pass fail test of code P0967 Did the result indicate a fail YES Go to step 6 NO Intermittent failure the system is OK at this time Check for poor connections or loose terminals at the A T clutch pressure control solenoid valve B and PCM If the tester indicates NOT COMPLETE return to step 3 and recheck Turn the ignition switch OFF 7 Disconnect the A T clutch pressure control solenoid valve B connector Measure A T clutch pressure control solenoid valve B resistance at the solenoid connector Is there 3 10 ohm YES Go to step 9 NO Replace the A T clutch pressure control solenoid valve B see A T CLUTCH PRESSURE CONTROL SOLENOID VALVE B amp C REPLACEMENT then go to step 12 Wednesday March 12 2008 8 49 57 PM Page 216 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed A T CLUTCH PRESSURE CONTROL SOLENOID VALVE B CONNECTOR Terminal side of male terminals G01818435 Fig 179 Measuring A T Clutch Pressure Control Solenoid Valve B Resistance At The Solenoid Connector 9 Check for continuity between A T clutch pressure control solenoid valve B connector terminal No 2 and body ground Is there continuity YES Update the PCM if it does not have the latest software or substitute a known good PCM see PCM UPDATING amp SUBSTITUTION FOR TESTING then recheck If the symptom indication goes
214. nosis MCTA 5 Speed NOTE You can see valve movement through the fluid passage in the mounting surface of the A T clutch pressure control solenoid valve A body 14 If the valve binds or moves sluggishly or if the solenoid valve does not operate replace the A T clutch pressure control solenoid valve A A T CLUTCH PRESSURE CONTROL SOLENOID VALVE A REPLACEMENT 1 Remove the intake air duct 2 Disconnect the A T clutch pressure control solenoid valve A connector 3 Remove the bolts securing the ATF cooler inlet line brackets B from the transmission hanger C Wednesday March 12 2008 8 50 01 PM Page 296 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed G01818491 Fig 235 Removing Components Remove the mounting bolts and the A T clutch pressure control solenoid valve A Remove the ATF pipe D ATF joint pipes E O rings F and gasket G Clean the mounting surface and fluid passages of the transmission housing Install the new gasket on the transmission housing and install the ATF pipe and ATF joint pipes Install the new O rings over the ATF joint pipes Wednesday March 12 2008 8 50 01 PM Page 297 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed 9 Install the new A T clutch pressure control solenoid valve A 10 Secure the ATF cooler inlet line brackets with the bolts on the transmission hanger 11 Check the A T clutch pressure control solenoid valv
215. nt Bracket amp Bracket Plate 8 Place the transmission jack under the transmission and remove the transmission lower mount nuts Wednesday March 12 2008 8 50 00 PM Page 287 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed 10 x 1 25 mm 44 N m 4 5 kgf m 33 Ibf ft G01818484 Fig 228 Removing The Transmission Lower Mount Nuts Lift the transmission up to create clearance between the transmission and front subframe with the jack Remove the ATF dipstick and remove the bolts securing the ATF cooler inlet line brackets A and ATF dipstick guide pipe B from the transmission hanger C Wednesday March 12 2008 8 50 00 PM Page 288 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed 6x 1 0mm 1 1 2N m 1 2 kgf m 8 7 Ibf ft 6 x 1 0 mm 12 N m 1 2 kgf m 8 7 Ibf ft G01818485 Fig 229 Removing Components 11 Remove the harness clamp D then remove the ATF dipstick guide pipe 12 Remove the shift solenoid valve cover A dowel pins B and gasket C Wednesday March 12 2008 8 50 00 PM Page 289 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed 6x 1 0mm 12 N m 1 2 kgf m 8 7 Ibf ft G01818486 Fig 230 Removing The Shift Solenoid Valve Cover Dowel Pins amp Gasket Disconnect the shift solenoid valve connectors remove the solenoid mounting bolts H then hold the solenoid valve body and remove the shift so
216. ntifying Servo Body Components Wednesday March 12 2008 8 49 53 PM Page 53 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed Accumulator The accumulators are located in the regulator valve body and the servo body The regulator valve body contains the Ist and 3rd accumulators and the servo body contains the 2nd 4th and 5th accumulators 5TH ACCUMULATOR 3RD ACCUMULATOR SERVO BODY 1ST ACCUMULATOR 4TH ACCUMULATOR REGULATOR VALVE BODY G01818312 Fig 56 Identifying Accumulators HYDRAULIC FLOW Distribution of Hydraulic Pressure As the engine turns the ATF pump starts to operate Automatic transmission fluid ATF is drawn through the ATF strainer filter and discharged into the hydraulic circuit Then ATF flowing from the ATF pump becomes line pressure that s regulated by the regulator valve Torque converter pressure from the regulator valve enters the torque converter through the lock up shift valve and it is discharged from the torque converter The torque converter check valve prevents torque converter pressure from rising The PCM controls the shift solenoid valves ON and OFF The shift solenoid valve intercepts line pressure from the ATF pump via the manual valve when the shift solenoid valve is OFF When the shift solenoid valve is turned ON line pressure changes to shift solenoid valve pressure at the shift solenoid valve then the solenoid valve pressure flows to the shift valve Applyi
217. o step 8 NO Follow instructions indicated on the HDS by the test result Go to step 10 if any part was replaced Test drive the vehicle at 55 mph 88 km h for 2 minutes while monitoring the vehicle speed with the HDS Cheek the OBD STATUS in DTCs MENU for a pass fail test of code P0741 Did the result indicate a fail YES Faulty the torque converter mechanism torque converter clutch hydraulic circuit lock up shift valve or lock up control valve or replace the transmission NO Intermittent failure the system is OK at this time If the tester indicates NOT COMPLETE return to step 8 and recheck Clear the DTC with the HDS Test drive the vehicle for several minutes under the same conditions as those indicated by the freeze data Check the OBD STATUS in DTCs MENU for a pass fail test of code P0741 Did the result indicate a pass YES The problem has been corrected NO Return to step 1 and recheck DTC P0747 A T CLUTCH PRESSURE CONTROL SOLENOID VALVE A STUCK ON NOTE Record all freeze data and review General Troubleshooting Information see GENERAL TROUBLESHOOTING INFORMATION before you troubleshoot Warm up the engine to normal operating temperature the radiator fan comes on Check to be sure that the transmission is filled to the proper level and check for fluid leaks Drain the ATF see DRAINING amp REFILLING through a strainer Inspect the ATF and strainer for metal debris or burnt flui
218. ody ground Is there continuity YES Go to step 9 NO Repair open in the wire between PCM connector terminals A8 A9 and ground G101 or repair poor ground G101 then go to step 29 Wednesday March 12 2008 8 49 55 PM Page 138 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed PCM CONNECTOR A 31P LG2 BRN YEL LG1 BRN YEL i lz s a s 6i7 Ue oo ere ajaen Wire side of female terminals G01818389 Fig 133 Checking For Continuity Between PCM Connector Terminals A8 amp Body Ground amp Between A9 amp Body Ground 9 Connect PCM connector A 31P 10 Turn the ignition switch ON II 11 Measure the voltage between countershaft speed sensor connector terminal No 1 and body ground Is there about 5 V YES Go to step 12 NO Go to step 23 Wednesday March 12 2008 8 49 55 PM Page 139 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed COUNTERSHAFT SPEED SENSOR CONNECTOR VCC2 YEL BLU Wire side of female terminals G01818390 Fig 134 Measuring The Voltage Between Countershaft Speed Sensor Connector Terminal No 1 amp Body Ground 12 Turn the ignition switch OFF 13 Disconnect PCM connector A 31P 14 Check for continuity between countershaft speed sensor connector terminal No 2 and body ground Is there continuity YES Repair short to ground in the wire between PCM connector terminal A18 and the countershaft speed sensor then
219. on and warm it up to normal operating temperature the radiator fan comes on And continue to run the engine at idle with all accessories turned off for more than 5 minutes to learn the idle control system in the PCM see ECM PCM IDLE LEARN PROCEDURE To verify that the problem is repaired test drive the vehicle for several minutes at speeds over 30 mph 50 km h or in freeze data range DTC TROUBLESHOOTING INDEX NOTE Record all freeze data and review General Troubleshooting Information see GENERAL TROUBLESHOOTING INFORMATION before you troubleshoot Wednesday March 12 2008 8 49 52 PM Page 11 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed pTc D Indicator MIL Detection Item Page P0705 5 2 Blinks ON Transmission range switch multiple shift position see page 14 74 input P0706 6 2 OFF ON Transmission range switch open _ see page 14 82 P0711 28 5 Blinks OFF _ ATF temperature sensor range performance see page 14 85 P0712 28 3 OFF _ ATF temperature sensor short see page 14 86 P0713 28 4 OFF _ ATF temperature sensor open see page 14 87 P0716 15 5 ON_ Mainshaft speed sensor range performance see page 14 89 P0717 15 3 Blinks ON _ Mainshaft speed sensor no signal input __ Z see page 14 93 P0718 15 6 Blinks ON _ Mainshaft speed sensor intermittent failure _ _ see page 14 9
220. on the shift lever is disengaged from the shift lever link and the shift lever can be used to shift gears manually between 1st through 5th much like a manual transmission Pa SHIFT LEVER KNOB SHIFT LOCK RELEASE DETENT PLUNGER PARK PIN SWITCH TRANSMISSION GEAR SELECTION SWITCH SHIFT CABLE AG X SHIFT LOCK STOP SHIFT LEVER LINK LOCK yx YW REVERSE LOCK STOP SHIFT LEVER LINK SHIFT LOCK SOLENOID SHIFT LEVER PIVOT SHIFT LEVER BRACKET BASE G01818333 Fig 77 Identifying Shift Lever Mechanism Components SHIFT LEVER MECHANISM IN M POSITION When the shift lever shifts to the M position the shift lever is disengaged from the shift lever link shift lever Wednesday March 12 2008 8 49 54 PM Page 74 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed pivot and the shift lever link lock pops up to engage with the shift lever bracket base the shift lever link shift lever pivot and shifting position in the transmission are held in the D position The shift lever link lock is spring loaded it pops up in the M position and does not engage the shift lever link shift lever pivot in any position except M SHIFT LEVER SHIFT LEVER LINK LOCK SHIFT LEVER LINK SHIFT LEVER BRACKET BASE SHIFT LEVER PIVOT G01818334 Fig 78 Shift Lever Mechanism in M Position The shift lever fits into the M position by using a detent plunger with a spring When shifting to upshift and downshift positions the
221. on switch OFF Disconnect the transmission gear selection switch connector Turn the ignition switch ON ID Verify the transmission gear selection switch sequential sportshift mode switch inputs with the HDS in the A T data list Is sequential sportshift mode SW ON YES Go to step 8 NO Replace the transmission gear selection switch see Transmission Gear Selection Switch Replacement then go to step 12 Turn the ignition switch OFF 9 Jump the SCS line with the HDS Disconnect PCM connector D 17P Check for continuity between transmission gear selection switch connector terminal No 3 and body ground Is there continuity YES Repair short to ground in the wire between PCM connector terminal D2 and the transmission gear selection switch connector then go to step 12 NO Check for loose or poor connections at PCM connector terminal D2 If the connection is OK update the PCM if it does not have the latest software or substitute a known good PCM see PCM UPDATING amp SUBSTITUTION FOR TESTING then recheck If the Wednesday March 12 2008 8 49 57 PM Page 199 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed symptom indication goes away with a known good PCM replace the original PCM TRANSMISSION GEAR SELECTION SWITCH PARK PIN SWITCH CONNECTOR S MODE BRN Wire side of female terminals G01818423 Fig 167 Checking For Continuity Between Transmission Gear Selectio
222. own good PCM replace the original PCM Wednesday March 12 2008 8 49 56 PM Page 146 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed PCM CONNECTOR A 31P rats rU ol pshefsjel papal Zalen Ze Wire side of female terminals G01818397 Fig 141 Checking For Continuity Between PCM Connector Terminal A20 amp Body Ground 28 Measure the voltage between PCM connector terminals A18 and A8 or A9 Is there about 5 V YES Repair open in the wire between PCM connector terminal A18 and the countershaft speed sensor then go to step 29 NO Update the PCM if it does not have the latest software or substitute a known good PCM see PCM UPDATING amp SUBSTITUTION FOR TESTING then recheck If the Wednesday March 12 2008 8 49 56 PM Page 147 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed symptom indication goes away with a known good PCM replace the original PCM PCM CONNECTOR A 31P LG2 BRN YEL LG1 BRN YEL BBACEOENEE V psi eae es L L NC BLK BLU Wire side of female terminals G01818398 Fig 142 Measuring The Voltage Between PCM Connector Terminals A18 amp A8 Or A9 29 Clear the DTC with the HDS 30 Test drive the vehicle for several minutes under the same conditions as those indicated by the freeze data 31 Check the OBD STATUS in DTCs MENU for a pass fail test of code P0721 Did the result indicate a pass YES The problem has been corrected
223. p the SCS line with the HDS Disconnect PCM connector A 31P and mainshaft speed sensor connector Check for continuity between PCM connector terminals A8 and body ground and between A9 and body ground Is there continuity YES Go to step 10 NO Repair open in the wires between PCM connector terminals A8 A9 and ground G101 or repair poor ground G101 then go to step 30 Wednesday March 12 2008 8 49 55 PM Page 123 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed PCM CONNECTOR A 31P LG2 BRN YEL G1 BRN YEL eT EET osise Zaanen Wire side of female terminals G01818376 Fig 120 Checking For Continuity Between PCM Connector Terminals A8 amp Body Ground amp Between A9 amp Body Ground 10 Connect PCM connector A 31P 11 Turn the ignition switch ON ID 12 Measure the voltage between mainshaft speed sensor connector terminal No 1 and body ground Is there about 5 V YES Go to step 13 NO Go to step 24 Wednesday March 12 2008 8 49 55 PM Page 124 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed MAINSHAFT SPEED SENSOR CONNECTOR VCC1 YEL RED Wire side of female terminals G01818377 Fig 121 Measuring The Voltage Between Mainshaft Speed Sensor Connector Terminal No 1 amp Body Ground 13 Turn the ignition switch OFF 14 Disconnect PCM connector C 22P 15 Check for continuity between mainshaft speed sensor conn
224. p the wheels Check the OBD STATUS in DTCs MENU for a pass fail test of code P0706 Did the result indicate a fail YES Go to step 5 NO Intermittent failure the system is OK at this time Check for poor connections or loose terminals at the transmission range switch and PCM If the tester indicates NOT COMPLETE return to step 1 and recheck Test the transmission range switch see TRANSMISSION RANGE SWITCH TEST Is the switch OK YES Inspect the end of the selector control shaft see step 6 of TRANSMISSION RANGE SWITCH TEST and go to step 6 NO Replace the transmission range switch then go to step 24 Install the transmission range switch correctly and adjust the shift cable see SHIFT CABLE 7 Clear the DTC with the HDS Raise the front of the vehicle make sure it is securely supported and allow the front wheels to rotate freely Start the engine drive the vehicle in the D position until the vehicle speed reaches 35 mph 56 km h then slow down and stop the wheels Check the OBD STATUS in DTCs MENU for a pass fail test of code P0706 Did the result indicate a fall YES Go to step 11 NO The problem has been corrected If the tester indicates NOT COMPLETE return to step 7 and recheck Shift the shift lever into the D position and verify the ATP FWD and ATP D inputs with the HDS in the A T data list Is the ATP FWD and ATP D ON YES Go to step 12 NO Go to step 17 Wednesda
225. rance If the clearance is out of tolerance inspect the clutch discs and plates for wear and damage If the discs are worn or damaged replace the discs as a set Inspect the clutch waved plate height If the height is out of tolerance replace the waved plate If the discs and plates are OK adjust the clearance with the clutch end plate Inspect the 1st clutch feed pipe If the 1st clutch feed pipe is scored replace the end cover Replace the secondary shaft if the bushing for the 3rd clutch feed pipe is loose or damaged Fig 20 Symptom Troubleshooting Index 7 Of 11 Wednesday March 12 2008 8 49 53 PM Page 21 Symptom 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed Probable cause s Excessive shock or flares on 2 3 upshift or 3 2 downshift A T clutch pressure control solenoid valve B defective A T clutch pressure control solenoid valve C defective 3rd clutch transmission fluid pressure switch defective Foreign material in separator plate orifice 2nd accumulator defective 3rd accumulator defective 2nd check ball stuck 2nd clutch defective 3rd clutch defective Excessive shock or flares on 3 4 upshift or 4 3 downshift G01818275 A T clutch pressure control solenoid valve B defective A T clutch pressure control solenoid valve C defective Foreign material in separator plate orifice 3rd accumulator defective 4th accumulator defective 3rd clutch defective 4th
226. rcuit Wednesday March 12 2008 8 49 54 PM Page 67 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed ano 1st 4TH CCU 4TH STH 2o 2N0 en cures tLuTcH CLUN Ac MULATOR Ahron orion 7 ome CLUTCH 2ND CLUTCH j jl TRANSMISSION FLUID 4 ilk 3RD ACT w 5 9 W fs SSS r 86 SHIFT SOLENOID VALVES o ed x SB A T CLUTCH PRESSURE CONTROL SOLENOID VALVES VN KC p ATF PUMP G01818326 Fig 70 Reverse Inhibitor Control Hydraulic Flow P Position Shift solenoid valves B and E are turned ON and A C and D turned OFF by the PCM Line pressure 1 flows to the shift solenoid valves and the A T clutch pressure control solenoid valve A Line pressure 3 changes to 3 at the shift valve E and flows to the servo valve The servo valve is moved to reverse park position Hydraulic pressure is not applied to the clutches Wednesday March 12 2008 8 49 54 PM Page 68 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed 2ND 2no ACCUMULATOR CLUTCH 2ND CLUTCH aH anD ano wr ACCUMULATOR 47H S sth AccumuLATOR CLUTCH pu CLUTCH CLUTCH ACCUMULATOR 3RD GLUTON an FLUID am aie ACCUMULATOR it ililt oe ee al rid in leet my J eNi A EA Hh wl Ril E i i Be A 30 z0 yy 5o ho g ary a5 10 A meid A OFF 1 x inet 8 ON s x x IIS 0 oF a
227. rent feedback _ Pressure A Valve 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed A T CLUTCH PRESSURE CONTROL SOLENOID VALVE A AIT CLUTCH PRESSURE CONTROL SOLENOID VALVES A T CLUTCH PRESSURE CONTROL SOLENOID VALVEC POSITION SWITCH oo I lt BRAKE UGHTS SHIFT SOLENOID PARK PIN SWITCH SHFTSO MULTIPLEX INTEGRATED c ED CONTROLUNIT e i X SHFT SOLENOID DATALINK CONNECTOR GAUGE CONTROL MODULE pr FT SOLENOID COUNTERSHAFT SPEED SENSOR RENGE SWATCH al MANIFOLD ABSOLUTE PRESSURE SENSOR S NODESWITCH _ SHIFT SWITCH 9 O H 2ND CLUTCH TRANSMISSION FLUID PRESSURE SWITCH 77 TRANSMISSION FLUID KOS on PRESSURE SWITCH PCM Connector Terminal Locations ears slo TEET 7 aE s 7 Azalals e Za Ts ArH 15 16 18 18 20 21 8 10 y3 15 V4 n n s 7 g 19 121 1 14 15 1617 f8 f19 20 21 Aala hlel Veki elele BeA Cei Va Elek tala bola A 3tPr G01818296 Fig 42 PCM Connector Terminal Locations PCM INPUTS amp OUTPUTS The PCM terminal voltage and measuring conditions are shown for the connector terminals that are related to Wednesday March 12 2008 8 49 53 PM Page 45 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed the A T control system The other terminal voltage and measuring conditions are described in Fuel and Emission e819 1 lels 41s U 6 paT gogog s 42 3 4 5 7 Us 9 sh
228. ressure changes to 3rd clutch pressure 30 at the shift valve A and A T clutch pressure control solenoid valve B pressure 56 changes to 4th clutch pressure 40 at the shift valve B The 3rd and 4th clutches are engaged gently NOTE When used left or right indicates direction on the hydraulic circuit Wednesday March 12 2008 8 49 54 PM Page 62 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed se aumnaton es aturcn 2ND CLUTCH ACCUMULATOR duren Giron x TRANSMISSION FLUID a o Ge Gi w Ei i i oa cid LJ Kms CONVERTER SHIFT SOLENOID VALVES i Joi gt aa i x MANUAL VALVE AIT CLUTCH PRESSUR CONTROL SOLENOID VALVES REGULATOR VALVE G01818321 Fig 65 D Position Shifting Between 3rd Gear amp 4th Gear Hydraulic Flow D Position Driving in 4th gear The PCM turns shift solenoid valves A ON and keeps B C D and E OFF Shift solenoid valve A pressure SA is applied to the right side of shift valve A Shift valve A is moved to the left side to cover the ports of A T clutch pressure control solenoid valves A and C leading to the 2nd and 3rd clutches A T clutch pressure control solenoid valve B pressure 56 changes to 5G at the shift solenoid valve C and becomes 4th clutch pressure 40 at the shift valve B The 4th clutch pressure 40 is held to high by A T clutch pressure control solenoid valve B and the 4th clutch is engaged securely NOTE When used left or right ind
229. review General Troubleshooting Information see GENERAL TROUBLESHOOTING INFORMATION before you troubleshoot e This code is caused by an electrical circuit problem and cannot be caused by a mechanical problem in the transmission Clear the DTC with the HDS Check that DTC P0966 recurs Is DTC P0966 indicated YES Go to step 6 NO Go to step 3 Select P CTRL SOL CONTROL in MISC TEST MENU then select P CONTROL SOL B in P CTRL SOL CTRL MENU with the HDS Drive with the A T clutch pressure control solenoid valve B at 1 0 A in SOL B CONTROL menu Check the OBD STATUS in DTCs MENU for a pass fail test of code P0966 Did the result indicate a fail YES Go to step 6 NO Intermittent failure the system is OK at this time Check for poor connections and loose terminals at the A T clutch pressure control solenoid valve B and PCM If the tester indicates NOT COMPLETE return to step 3 and recheck Turn the ignition switch OFF 7 Disconnect the A T clutch pressure control solenoid valve B connector Measure A T clutch pressure control solenoid valve B resistance at the solenoid connector Is there 3 10 ohm YES Go to step 9 NO Replace the A T clutch pressure control solenoid valve B see A T CLUTCH PRESSURE CONTROL SOLENOID VALVE B amp C REPLACEMENT then go to step 12 Wednesday March 12 2008 8 49 57 PM Page 212 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed A T CLUTCH PRE
230. rness connector then go to step 13 NO Check shift solenoid valve E and check for an open in the shift solenoid harness in the transmission see SHIFT SOLENOID VALVE TEST Replace shift solenoid valve E and or shift solenoid harness then go to step 13 Wednesday March 12 2008 8 49 59 PM Page 254 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed SHIFT SOLENOID HARNESS CONNECTOR SH E RED Terminal side of male terminals G01818461 Fig 205 Checking For Continuity Between Shift Solenoid Harness Connector Terminal No 3 amp Body Ground 13 Clear the DTC with the HDS 14 Start the engine and shift the transmission in 2nd gear in the M position 15 Check the OBD STATUS in DTCs MENU for a pass fail test of code P0986 Did the result indicate a pass YES The problem has been corrected NO Return to step 1 and recheck DTC P1730 PROBLEM IN SHIFT CONTROL SYSTEM e Shift Solenoid Valves A or D Stuck OFF e Shift Solenoid Valve B Stuck ON Wednesday March 12 2008 8 49 59 PM Page 255 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed e Shift Valves A B or D Stuck NOTE Record all freeze data and review General Troubleshooting Information see GENERAL TROUBLESHOOTING INFORMATION before you troubleshoot 1 Warm up the engine to normal operating temperature the radiator fan comes on Check to be sure that the transmission is filled to the proper level
231. rnt fluid Has the ATF deteriorated YES Replace ATF see DRAINING amp REFILLING and test drive the vehicle under the same conditions as those indicated by the freeze data then recheck NO Go to step 4 Measure the line pressure see PRESSURE TEST Is the line pressure within service limits YES Go to step 5 NO Repair the ATF pump and regulator valve or replace the transmission Measure the 4th clutch pressure see PRESSURE TEST Is the 4th clutch pressure within service limits YES Go to step 6 NO Shift valve B shift valve C servo control valve and servo valve are stuck Repair these valves and hydraulic circuit or replace the transmission Clear the DTC with the HDS Test drive the vehicle for several minutes under the same conditions as those indicated by the freeze data or drive in the 4th gear in the M position at speeds over 10 mph 16 km h for 20 seconds Check the OBD STATUS in DTCs MENU for a pass fail test of code P0734 Did the result indicate a fail YES Repair the 4th clutch or replace the transmission NO Intermittent failure the system is OK at this time If the tester indicates NOT COMPLETE return to step 1 and recheck DTC P0735 PROBLEM IN 5TH CLUTCH amp 5TH CLUTCH HYDRAULIC CIRCUIT NOTE Record all freeze data and review General Troubleshooting Information see Wednesday March 12 2008 8 49 56 PM Page 166 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Di
232. rse Lock Stop Locking The Shift Lever WIRING DIAGRAM Wednesday March 12 2008 8 49 54 PM Page 80 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed UNDER DASH UNDER HOOD FUSE RELAY BOX FUSE RELAY BOX No 13 204 No320 5A DMO No 22 i100 No 23 GA No 19140A nd a d a MULTIPLEX INTEGRATED CONTROL DATA UNK a CONNECTOR PARK PN SWITCH UNDER DASH FUSE RELAY BOX No2Z1 758 GAUGE CONTROL MODULE j i Bx Gsn TRANSMISSION RANGE SWITCH G01818340 Fig 84 Circuit Diagram PCM A T Control System Wiring Diagram 1 Of 3 Wednesday March 12 2008 8 49 54 PM Page 81 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed TRANSMISSION GEAR SELECTION SWITCH A T CLUTCH PRESSURE AIT CLUTCH PRESSURE CONTROL SOLENOD CONTROL SOLENOD 2ND CLUTCH VALVEB JALVEC TRANSMISSION FLUID PRESSURE SWITCH ATF TEMPERATURE SENSOR MANIFOLD ABSOLUTE MAINSHAFT PRESSURE SENSOR SPEED SENSOR G01818341 Fig 85 Circuit Diagram PCM A T Control System Wiring Diagram 2 Of 3 eren EELE EE EECA EEEE AEZ AOE h13 14 1s 16 20 21 s wln a 15 a sng 13 ta i5 fif u ppoe 12 19 20 21 2a esje aja 37 18 99 AA 6 17 18 19 20 15 7171 23 z4 zl 23 30 ABP G01818342 Fig 86 Circuit Diagram PCM A T Control System Wiring Diagram 3 Of 3
233. s NOT COMPLETE return to step 5 and recheck 8 Clear the DTC with the HDS Wednesday March 12 2008 8 49 56 PM Page 173 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed 9 Select SHIFT SOL TEST in MISC TEST MENU then carry out A T SHIFT SOL C test in SHIFT SOL TEST MENU with the HDS Is a clicking sound heard YES Go to step 10 NO Replace shift solenoid valve C see SHIFT SOLENOID VALVE REPLACEMENT then go to step 13 Test drive the vehicle in the D position in all five gears at speeds over 12 mph 20 km h for more than 20 seconds then slow down to a stop Retest drive the vehicle in the D position in all five gears at speeds over 12 mph 20 km h for more than 20 seconds then slow down to a stop Check the OBD STATUS in DTCs MENU for a pass fail test of code P0761 Did the result indicate a fail YES Repair shift valve C or replace the transmission then go to step 13 NO Intermittent failure the system is OK at this time If the tester indicates NOT COMPLETE return to step 10 and recheck Clear the DTC with the HDS Test drive the vehicle in the D position in all five gears at speeds over 12 mph 20 km h for more than 20 seconds then slow down to a stop Retest drive the vehicle in the D position in all five gears at speeds over 12 mph 20 km h for more than 20 seconds then slow down to a stop Check the OBD STATUS in DTCs MENU for a pass fail t
234. s at speeds over 12 mph 20 km h for more than 20 seconds then slow down to a stop Retest drive the vehicle in the D position in all five gears at speeds over 12 mph 20 km h for more than 20 seconds then slow down to a stop Check the OBD STATUS in DTCs MENU for a pass fail test of code P0797 Did the result indicate a fail YES Go to step 8 NO Intermittent failure the system is OK at this time If the tester indicates NOT COMPLETE return to step 5 and recheck Clear the DTC with the HDS Select LINEAR SOL TEST in MISC TEST MENU then carry out LINEAR SOL C TEST in LINEAR SOL TEST MENU with the HDS Is the system OK YES Intermittent failure the system is OK at this time If the tester indicates NOT COMPLETE return to step 9 and recheck NO Follow instructions indicated on the HDS by the test result but the tester has not determined the cause of the failure go to step 10 If any part was replaced go to step 11 Inspect A T clutch pressure control solenoid valve C see A T CLUTCH PRESSURE CONTROL SOLENOID VALVE B amp C TEST Does the A T clutch pressure control solenoid valve C work properly YES Repair hydraulic system related with shift valves B and C or replace the transmission then go to step 11 NO Replace A T clutch pressure control solenoid valve C see A T CLUTCH PRESSURE CONTROL SOLENOID VALVE B amp C REPLACEMENT then go to step 11 Clear the DTC with the HDS Test dr
235. sed by an electrical circuit problem and cannot be caused by a mechanical problem in the transmission Clear the DTC with the HDS Check the 3rd PRES SWITCH signal with the HDS in the A T data list when not in 3rd gear Is the 3rd PRES SWITCH ON YES Go to step 3 NO Go to step 5 Start the engine and warm it up to normal operating temperature the radiator fan comes on Drive the vehicle in 3rd gear in the M position for more than 5 seconds then upshift to 4th gear and drive in 4th gear for more than 5 seconds Slow down to a stop Check the OBD STATUS in DTCs MENU for a pass fail test of code P0847 Did the result indicate a fail YES Go to step 5 NO Intermittent failure the system is OK at this time Check the BLU WHT wire for an intermittent short to ground between the 3rd clutch transmission fluid pressure switch and PCM If the tester indicates NOT COMPLETE return to step 3 and recheck Turn the ignition switch OFF Disconnect the 3rd clutch transmission fluid pressure switch connector Turn the ignition switch ON ID Check the 3rd PRES SWITCH signal with the HDS in the A T data list Is the 3rd PRES SWITCH OFF YES Replace the 3rd clutch transmission fluid pressure switch see 3RD CLUTCH TRANSMISSION FLUID PRESSURE SWITCH REPLACEMENT go to step 13 NO Go to step 9 Turn the ignition switch OFF Jump the SCS line with the HDS Disconnect PCM connector C 22P Check for continuity betw
236. see SHIFT SOLENOID VALVE TEST Replace shift solenoid valve A and or shift solenoid harness then go to step 13 Wednesday March 12 2008 8 49 58 PM Page 227 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed PCM CONNECTORS SHA BLU BLK LG2 BRN YEL LG1 BRN YEL jifz s ajsje 7jllels 4 2 hol fr3 14fi6 he i8 19 20 21 stolnlatishers ese 28128 28 20 81 hehisi2oi 4 A 31P C 22P Wire side of female terminals Fig 187 Checking For Continuity Between PCM Connector Terminals C6 amp A8 Or A9 13 Clear the DTC with the HDS 14 Start the engine and shift to the D position 15 Check the OBD STATUS in DTCs MENU for a pass fail test of code P0973 Did the result indicate a pass YES The problem has been corrected NO Return to step 1 and recheck DTC P0974 OPEN IN SHIFT SOLENOID VALVE A CIRCUIT NOTE e Record all freeze data and review General Troubleshooting Information see GENERAL TROUBLESHOOTING INFORMATION before you troubleshoot e This code is caused by an electrical circuit problem and cannot be caused by a mechanical problem in the transmission 1 Clear the DTC with the HDS 2 Start the engine in the P position Wednesday March 12 2008 8 49 58 PM Page 228 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed Check that DTC P0974 recurs Is DTC P0974 indicated YES Go to step 7 NO Go to step 4 Select SHIFT SOL TEST in MISC
237. shift solenoid valve E is turned on by the PCM shift solenoid valve E pressure switches the lock up shift valve lock up on and off The A T clutch pressure control solenoid valve A and the lock up control valve control the volume of the lock up conditions Wednesday March 12 2008 8 49 53 PM Page 26 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed GEAR SELECTION The shift lever has five positions P PARK R REVERSE N NEUTRAL D DRIVE Ist through 5th gear range with automatic shift and sequential sportshift in M sequential sportshift mode position and D DRIVE Ist through 3rd gear range with automatic shift Starting is possible only in the P and N positions because of a slide type neutral safety switch P PARK Front wheels locked park pawl engaged with park gear on countershaft All clutches are released R REVERSE Reverse reverse selector engaged with countershaft reverse gear and 4th clutch engaged N NEUTRAL All clutches are released D DRIVE ist Automatic shift General driving starts off in 1st shifts automatically to 2nd 3rd 4th then through 5th 5th depending on vehicle speed and throttle position Downshifts through 4th 3rd 2nd and 1st on deceleration to stop The lock up mechanism operates in 2nd 3rd 4th and 5th gears M position Manual gear shift driving vehicle can starts off in 1st and 2nd gears and Sequential does not upshift automatically The lock up
238. ssure Gauges To The 2nd Clutch Pressure Inspection Hole 7 Connect the oil pressure gauge to the 1st clutch pressure inspection hole D 3rd clutch pressure inspection hole E and 5th clutch pressure inspection hole F Wednesday March 12 2008 8 50 00 PM Page 273 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed G01818471 Fig 215 Connecting The Oil Pressure Gauge To The 1st Clutch Pressure Inspection Hole 3rd Clutch Pressure Inspection Hole amp 5th Clutch Pressure Inspection Hole Start the engine and run it at 2 000 RPM in the P or N position 9 Measure line pressure at the line pressure inspection hole A NOTE Higher pressure may be indicated if measurements are made in shift lever position other than NorP Wednesday March 12 2008 8 50 00 PM Page 274 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed Fluid Pressure Line A 927 985 6 kPa 878 kPa 9 45 10 05 8 95 kgf cm kgf cm 127 psi 134 142 9 psi G01818472 Fig 216 Line Pressure Table Shift to the M position Shift to 1st gear and measure 1st clutch pressure at the 1st clutch pressure inspection hole D while holding engine speed at 2 000 RPM Shift up to 2nd gear and measure 2nd clutch pressure at the 2nd clutch pressure inspection hole C while holding engine speed at 2 000 RPM Shift up to 3rd gear and measure 3rd clutch pressure at the 3rd clutch pres
239. st result but the tester has not determined the cause of the failure go to step 10 If any part was replaced go to step 11 Inspect A T clutch pressure control solenoid valve B see A T CLUTCH PRESSURE CONTROL SOLENOID VALVE B amp C TEST Does the A T clutch pressure control solenoid valve B work properly YES Repair hydraulic system related with shift valve B or replace the transmission then go to step 11 NO Replace A T clutch pressure control solenoid valve B see A T CLUTCH PRESSURE CONTROL SOLENOID VALVE B amp C REPLACEMENT then go to step 11 11 Clear the DTC with the HDS 12 Test drive the vehicle in the D position in all five gears at speeds over 12 mph 20 km h for more than 20 seconds then slow down to a stop 13 Retest drive the vehicle in the D position in all five gears at speeds over 12 mph 20 km h for more than 20 seconds then slow down to a stop 14 Check the OBD STATUS in DTCs MENU for a pass fail test of code P0777 Wednesday March 12 2008 8 49 56 PM Page 177 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed Did the result indicate a pass YES The problem has been corrected NO Return to step 1 and recheck DTC P0780 SHIFT CONTROL SYSTEM NOTE Record all freeze data and review General Troubleshooting Information see GENERAL TROUBLESHOOTING INFORMATION before you troubleshoot 1 Check for other DTCs indicated simultaneous with the code P07
240. stall the air cleaner housing and intake air duct 33 Install the battery tray battery and battery cover then secure the battery with its hold down bracket Connect the battery terminals 34 Install the splash shield SHIFT SOLENOID VALVE REPLACEMENT 1 Remove the splash shield 2 Remove the drain plug A and drain the automatic transmission fluid ATF Then reinstall the drain plug with a new sealing washer B Wednesday March 12 2008 8 50 00 PM Page 285 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed A 18 x 1 5mm 49 N m 5 0 kgf m 36 Ibf ft B G01818482 Fig 226 Removing The Drain Plug Disconnect the battery negative terminal then disconnect the battery positive terminal Remove the battery hold down bracket then remove the battery cover battery and battery tray Remove the intake air duct and air cleaner housing Loosen the two bolts securing the battery base from under the vehicle and remove the two bolts securing the battery base in the engine compartment then remove the battery base Remove the ground cable A transmission upper mount bracket B and bracket plate C Wednesday March 12 2008 8 50 00 PM Page 286 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed 10 x 1 25 mm 54N m 5 5 kgf m 40 Ibf ft 12 x 1 25 mm 54 N m 5 5 kgf m 40 ibf ft G01818483 Fig 227 Removing The Ground Cable Transmission Upper Mou
241. stance At The Solenoid Connector 9 Check for continuity between A T clutch pressure control solenoid valve A connector terminal No 2 and body ground Is there continuity YES Update the PCM if it does not have the latest software or substitute a known good PCM see PCM UPDATING amp SUBSTITUTION FOR TESTING then recheck If the symptom indication goes away with a known good PCM replace the original PCM NO Repair open in the wire between the A T clutch pressure control solenoid valve A and ground G101 or repair poor ground G101 then go to step 12 Wednesday March 12 2008 8 49 57 PM Page 210 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed A T CLUTCH PRESSURE CONTROL SOLENOID VALVE A CONNECTOR Wire side of female terminals G01818431 Fig 175 Checking For Continuity Between A T Clutch Pressure Control Solenoid Valve A Connector Terminal No 2 amp Body Ground 10 Clear the DTC with the HDS 11 Test drive the vehicle for several minutes in the D position in all five gears 12 Check the OBD STATUS in DTCs MENU for a pass fail test of code P0963 Did the result indicate a pass YES The problem has been corrected NO Return to step 1 and recheck DTC P0966 PROBLEM IN A T CLUTCH PRESSURE CONTROL SOLENOID VALVE B CIRCUIT Wednesday March 12 2008 8 49 57 PM Page 211 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed e Record all freeze data and
242. stance between shift solenoid harness connector terminal No 1 and body ground Is there 12 25 ohm YES Repair open in the wire between PCM connector terminal C2 and the shift solenoid harness connector then go to step 13 NO Check shift solenoid valve C and check for an open in the shift solenoid harness in the transmission see SHIFT SOLENOID VALVE TEST Replace shift solenoid valve C and or shift solenoid harness then go to step 13 Wednesday March 12 2008 8 49 59 PM Page 242 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed SHIFT SOLENOID HARNESS CONNECTOR SH C GRN Terminal side of male terminals G01818453 Fig 197 Measuring The Resistance Between Shift Solenoid Harness Connector Terminal No 1 amp Body Ground 13 Clear the DTC with the HDS 14 Start the engine in the P position 15 Check the OBD STATUS in DTCs MENU for a pass fail test of code P0980 Did the result indicate a pass YES The problem has been corrected NO Return to step 1 and recheck DTC P0982 SHORT IN SHIFT SOLENOID VALVE D CIRCUIT NOTE e Record all freeze data and review General Troubleshooting Information see GENERAL TROUBLESHOOTING INFORMATION before you Wednesday March 12 2008 8 49 59 PM Page 243 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed troubleshoot e This code is caused by an electrical circuit problem and cannot be caused by a mechanical problem in the
243. ster Target of Countershaft Speed H Shifting Position Shift Solenoid Sensor Signal Mainshaft Speed Correction of Data Transmission Range switch J E Valve B Shift sence Comparison with Signals in Valve C Sensor Signal ona Shift Solenoid iH Valve D Grade Logic Control ATF Temperature x f Snit en Benen Sia Decades te f ah Calculation of Brake Pedal Position _ gradient Switch Signal Engine Coolant Correction of engine Temperature coolant temperature Sensor Signal sensor signal data Barometric Pressure Sensor Signal G01818290 Fig 36 Shift Control Schematic The PCM turns the shift solenoid valves A B C D and E ON and OFF to control shifting transmission gear The combination of driving signals to shift solenoid valves A B C D and E are shown in table below Wednesday March 12 2008 8 49 53 PM Page 40 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed Position Gear position Shift solenoid valves Stays in 1st _ON ON_ ON Shifting gears between 1st and 2nd _ OFF ON ON Stays in 2nd __ OFF ON Shifting gears between 2nd and 3rd_ _ ON Stays in 3rd i OFF Shifting gears between 3rd and 4th _ OFF Stays in 4th a 2S al ie OFF Shifting gears between 4th and 5th _ OFF Stays in 5th OFF Shifting from P and N position i ON Stays in reverse g __ON Reverse inhibit ON Park i ON Neutral ON
244. sure inspection hole E while holding engine speed at 2 000 RPM Shift up to 4th gear and measure 4th clutch pressure at the 4th clutch pressure inspection hole B while holding engine speed at 2 000 RPM Shift up to 5th gear and measure Sth clutch pressure at the 5th clutch pressure inspection hole F while holding engine speed at 2 000 RPM Bring the engine back to an idle then apply the brake to stop the wheels from rotating Shift to the R position Raise the engine RPM to 2 000 RPM and measure 4th clutch pressure at the 4th clutch pressure inspection hole B Wednesday March 12 2008 8 50 00 PM Page 275 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed Fluid Pressure tst clutch 917 995 4 kPa 868 kPa D 9 35 10 15 8 85 kgf cm 2nd clutch kgf cm 126 psi C 133 144 3 psi 3rd clutch D 4th clutch B 5th clutch F G01818473 Fig 217 Clutch Pressure Table 18 Ifthe measurements are out of service limit problems and probable causes are listed in the table below Wednesday March 12 2008 8 50 00 PM Page 276 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed Probable causes No or low line Torque converter pressure ATF pump e Regulator valve e Torque converter check valve e Low fluid level e Clogged ATF strainer clutch pressure e O rings clutch pressure e O rings No or low 3rd e 3rd clutch clutch pressure
245. t indicates direction on the hydraulic circuit Wednesday March 12 2008 8 49 54 PM Page 59 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed 1st 3RD CLUTCH ACCUMULATOR CLUTCH CL 4TH 2ND 4TH STH ACCUMUL ano ACCUMULATOR MULATOR CLUTCH 2ND CLUTCH LATOR LATOR TRANSMISSION FLUID Be ae 4 0 ia Ta i cal 5 A e en _ T 7 on iimm CONVERTER ae i E 30 5 isl ae aT POP ir i l co id Eee snvo conmo VALVE FISTS aor mo x sa eS el C OFF EE UIN Pon a SE a aha SHIFT SOLENOID VALVES A T CLUTCH PRESSURE CONTROL SOLENOID VALVES G01818318 Fig 62 D Position Driving In 2nd Gear Hydraulic Flow D Position Shifting between 2nd gear amp 3rd gear As the speed of the vehicle reaches the prescribed value the PCM turns shift solenoid valve C ON and keeps A and E OFF and B and D ON Shift solenoid valve C pressure SC is applied to the right side of shift valve C Shift valve C is moved to the left side to uncover the ports of A T clutch pressure control solenoid valves leading to the 2nd and 3rd clutches The PCM controls the A T clutch pressure control solenoid valves to regulate hydraulic pressure A T clutch pressure control solenoid valve B pressure 56 changes to 2nd clutch pressure 20 at the shift valve A and A T clutch pressure control solenoid valve C pressure 57 changes to 3rd clutch pressure 30 at the shift valve A The 2nd and 3rd clutches are en
246. t transmitting no power 1st Clutch Wednesday March 12 2008 8 49 53 PM Page 27 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed The Ist clutch engages disengages 1st gear and is located at the top of the secondary shaft The Ist clutch is joined back to back to the 3rd clutch The Ist clutch is supplied hydraulic pressure by its ATF feed pipe within the secondary shaft 2nd Clutch The 2nd clutch engages disengages 2nd gear and is located at the end of the secondary shaft opposite the end cover The 2nd clutch is supplied hydraulic pressure by a circuit connected to the internal hydraulic circuit 3rd Clutch The 3rd clutch engages disengages 3rd gear and is located at the top of the secondary shaft The 3rd clutch is joined back to back to the Ist clutch The 3rd clutch is supplied hydraulic pressure by its ATF feed pipe within the secondary shaft 4th Clutch The 4th clutch engages disengages 4th gear as well as reverse gear and is located at the top of the mainshaft The 4th clutch is joined back to back to the 5th clutch The 4th clutch is supplied hydraulic pressure by its ATF feed pipe within the mainshaft 5th Clutch The 5th clutch engages disengages Sth gear and is located at the top of the mainshaft The 5th clutch is joined back to back to the 4th clutch The 5th clutch is supplied hydraulic pressure by its ATF feed pipe within the mainshaft Gear operation Gears on the mainshaft e 4
247. ted NO Return to step 1 and recheck DTC P1731 PROBLEM IN SHIFT CONTROL SYSTEM e Shift Solenoid Valve E Stuck ON e Shift Valve E Stuck e A T Clutch Pressure Control Solenoid Valve A Stuck OFF NOTE Record all freeze data and review General Troubleshooting Information see GENERAL TROUBLESHOOTING INFORMATION before you troubleshoot 1 Warm up the engine to normal operating temperature the radiator fan comes on Check to be sure that the transmission is filled to the proper level and check for fluid leaks Drain the ATF through a strainer see DRAINING amp REFILLING Inspect the ATF and strainer for metal debris or burnt fluid Has the ATF deteriorated YES Replace ATF see DRAINING amp REFILLING and go to step 4 NO Go to step 8 Clear the DTC with the HDS Test drive the vehicle in the D position in all five gears at speeds over 12 mph 20 km h for more than 20 seconds then slow down to a stop Retest drive the vehicle in the D position in all five gears at speeds over 12 mph 20 km h for more than Wednesday March 12 2008 8 49 59 PM Page 257 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed 20 seconds then slow down to a stop Check the OBD STATUS in DTCs MENU for a pass fail test of code P1731 Did the result indicate a fail YES Go to step 8 NO Intermittent failure the system is OK at this time If the tester indicates NOT COMPLETE return to step 5 an
248. terminals then go to step 6 Connect the mainshaft speed sensor connector Test drive the vehicle for several minutes and check the OBD STATUS in DTCs MENU for a pass fail test of code P0718 Did the result indicate a fail YES Go to step 8 NO The problem has been corrected If the tester indicates NOT COMPLETE return to step 7 and recheck Turn the ignition switch OFF Jump the SCS line with the HDS Disconnect PCM connector C 22P Disconnect the mainshaft speed sensor connector Check for continuity between mainshaft speed sensor connector terminal No 2 and body ground Is there continuity YES Repair short to ground in the wire between PCM connector terminal C19 and the mainshaft speed sensor connector then go to step 19 NO Go to step 13 Wednesday March 12 2008 8 49 55 PM Page 134 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed MAINSHAFT SPEED SENSOR CONNECTOR TAE NM WHT RED Q Wire side of female terminals G01818386 Fig 130 Checking For Continuity Between Mainshaft Speed Sensor Connector Terminal No 2 amp Body Ground 13 Connect PCM connector C 22P 14 Turn the ignition switch ON ID 15 Measure the voltage between mainshaft speed sensor connector terminal No 2 and body ground Is there about 5 V Wednesday March 12 2008 8 49 55 PM Page 135 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed YES Replace th
249. terminals at the transmission gear selection switch and PCM 4 Turn the ignition switch OFF Disconnect the transmission gear selection switch connector Check for continuity between transmission gear selection switch connector terminals No 2 and No 3 Is there continuity when the shift lever is in M position and no continuity when the shift lever is any other M position YES Go to step 7 NO Replace the transmission gear selection switch see Transmission Gear Selection Switch Replacement then go to step 10 Wednesday March 12 2008 8 49 57 PM Page 201 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed TRANSMISSION GEAR SELECTION SWITCH PARK PIN SWITCH CONNECTOR GND BLK S MODE YEL Terminal side of male terminals G01818424 Fig 168 Checking For Continuity Between Transmission Gear Selection Switch Connector Terminals No 2 amp No 3 7 Turn the ignition switch ON ID 8 Measure the voltage between transmission gear selection switch connector terminal No 3 and body ground Is there about 5 V YES Repair open in the wire between transmission gear selection switch connector terminal No 2 and ground G501 or repair poor ground G501 then go to step 10 NO Go to step 9 Wednesday March 12 2008 8 49 57 PM Page 202 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed TRANSMISSION GEAR SELECTION SWITCH PARK PIN SWITCH CONNECTOR S MODE
250. tester screen Record all fuel and emissions DTCs A T DTCs and freeze data If there is a fuel and emissions DTC first check the fuel and emissions system as indicated by the DTC except for DTC P0700 DTC P0700 means there is one or more A T DTCs and no problems were detected in the fuel and emissions circuit of the PCM Clear the DTC and data Drive the vehicle for several minutes under the same conditions as those indicated by the freeze data and then recheck for a DTC If the A T DTC returns go to the DTC troubleshooting Index If the DTC does not return there was an intermittent problem within the circuit make sure all pins and terminals in the circuit are tight Wednesday March 12 2008 8 49 52 PM Page 4 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed HOW TO CHECK FOR DTCS WITH THE SCS MODE RETRIEVING THE FLASH CODES When the PCM senses an abnormality in the input or output system theD indicator A in the gauge assembly B will usually blink INN DS Se ON Kg 5 A G01818259 Fig 5 Identifying D Indicator When the D indicator has been reported on connect the HDS to the DLC A located under the left end of the dash Turn the ignition switch ON II select SCS mode then the D indicator will indicate the DTC Wednesday March 12 2008 8 49 52 PM Page 5 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed G01818260 Fig 6 Locating The Data
251. th gear engages disengages with the mainshaft by the 4th clutch e 5th gear engages disengages with the mainshaft by the 5th clutch e Reverse gear engages disengages with the mainshaft by the 4th clutch e Idler gear is splined with the mainshaft and rotates with the mainshaft Gears on the countershaft e Final drive gear is integral with the countershaft e Ist 2nd 3rd 5th and park gears are splined with the countershaft and rotate with the countershaft e 4th gear and reverse gear rotate freely from the countershaft The reverse selector engages 4th gear and reverse gear with the reverse selector hub The reverse selector hub is splined to the countershaft so that the 4th gear and reverse gear engage with the countershaft Gears on the secondary shaft Wednesday March 12 2008 8 49 53 PM Page 28 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed Ist gear engages disengages with the secondary shaft by the 1st clutch 2nd gear engages disengages with the secondary shaft by the 2nd clutch 3rd gear engages disengages with the secondary shaft by the 3rd clutch Idler gear is splined with the secondary shaft and rotates with the secondary shaft The idler gear on the idler shaft transmits power between the mainshaft and the secondary shaft The reverse idler gear transmits power from the mainshaft reverse gear to the countershaft reverse gear and changes rotation direction of the countershaft to reverse
252. the system is OK at this time If the tester indicates NOT COMPLETE return to step 9 and recheck NO Follow instructions indicated on the HDS by the test result but the tester has not determined the cause of the failure go to step 10 If any part was replaced go to step 11 Inspect A T clutch pressure control solenoid valve B see A T CLUTCH PRESSURE CONTROL SOLENOID VALVE B amp C TEST Does the A T clutch pressure control solenoid valve B work properly YES Repair hydraulic system related with shift valve B or replace the transmission then go to step 11 NO Replace A T clutch pressure control solenoid valve B see A T CLUTCH PRESSURE CONTROL SOLENOID VALVE B amp C REPLACEMENT then go to step 11 Clear the DTC with the HDS Test drive the vehicle in the D position in all five gears at speeds over 12 mph 20 km h for more than 20 seconds then slow down to a stop Retest drive the vehicle in the D position in all five gears at speeds over 12 mph 20 km h for more than 20 seconds then slow down to a stop Check the OBD STATUS in DTCs MENU for a pass fail test of code P0776 Did the result indicate a pass YES The problem has been corrected NO Return to step 1 and recheck DTC P0777 A T CLUTCH PRESSURE CONTROL SOLENOID VALVE B STUCK ON Wednesday March 12 2008 8 49 56 PM Page 176 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed NOTE Record all freeze data and r
253. then carry out A T SHIFT SOL D test in SHIFT SOL TEST MENU with the HDS Is a clicking sound heard YES Go to step 12 NO Replace shift solenoid valve D see SHIFT SOLENOID VALVE Wednesday March 12 2008 8 49 59 PM Page 256 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed REPLACEMENT then go to step 15 Test drive the vehicle in the D position in all five gears at speeds over 12 mph 20 km h for more than 20 seconds then slow down to a stop Retest drive the vehicle in the D position in all five gears at speeds over 12 mph 20 km h for more than 20 seconds then slow down to a stop Check the OBD STATUS in DTCs MENU for a pass fail test of code P1730 Did the result indicate a fail YES Repair hydraulic system related with shift valves A B and D or replace the transmission then go to step 15 NO Intermittent failure the system is OK at this time If the tester indicates NOT COMPLETE return to step 12 and recheck Clear the DTC with the HDS Test drive the vehicle in the D position in all five gears at speeds over 12 mph 20 km h for more than 20 seconds then slow down to a stop Retest drive the vehicle in the D position in all five gears at speeds over 12 mph 20 km h for more than 20 seconds then slow down to a stop Check the OBD STATUS in DTCs MENU for a pass fail test of code P1730 Did the result indicate a pass YES The problem has been correc
254. ue converter one way clutch defective Engine output low Torque converter clutch piston defective Lock up shift valve defective Check the D indicator and check for loose connectors Inspect the shift solenoid valve E for seizure and O ting for wear and damage Replace the torque converter Replace the torque converter G01818271 Fig 17 Symptom Troubleshooting Index 4 Of 11 Wednesday March 12 2008 8 49 53 PM Page 18 2004 Acura TSX Symptom 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed Probable cause s Engine idle vibration Vehicle moves inthe N position G01818272 Low ATF level Shift solenoid valve E defective Drive plate defective or transmission misassembled Engine output low Torque converter clutch piston defective ATF pump worn or binding Lock up shift valve defective Misadjusted engine and transmission mounts Excessive ATF Foreign material in separator plate orifice Relief valve defective 1st clutch defective 2nd clutch defective 3rd clutch defective 4th clutch defective 5th clutch defective Clutch end plate to top disc clearance incorrect Needle bearing seized worn or damaged Thrust washer seized up worn or damaged Check the ATF level and check the ATF cooler lines for leakage and loose connections If necessary flush the ATF cooler lines Improper alignment of ATF pump and torque converter housing may cause ATF pump sei
255. ulator passes through the manual valve to the various control valves The Ist 3rd and 5th clutches receive fluid from their respective feed pipes and the 2nd and the 4th clutches receive fluid from the internal hydraulic circuit SHIFT CONTROL MECHANISM The PCM controls to shift gears the shift solenoid valves A B C D and E and the A T clutch pressure control solenoid valves A B and C while receiving input signals from various sensors and switches located throughout the vehicle The shift solenoid valves shift the positions of the shift valves to switch the port leading hydraulic pressure to the clutch The A T clutch pressure control solenoid valves A B and C regulate their respective pressure and pressurize to the clutches to engage it and its corresponding gear The pressures of the A T clutch pressure control solenoid valves also apply to the shift valves to switch the port LOCK UP MECHANISM The lock up mechanism operates in D position 2nd 3rd 4th and 5th in D position 2nd and 3rd and M sequential sportshift mode position 3rd 4th and 5th The pressurized fluid is drained from the back of the torque converter through a fluid passage causing the torque converter clutch piston to be held against the torque converter cover As this takes place the mainshaft rotates at the same speed as the engine crankshaft Together with the hydraulic control the PCM optimizes the timing and volume of the lock up mechanism When the
256. uld be used for diagnostic purposes only Stall speed should be the same in D and R positions Do not test stall speed with the A T pressure gauges installed Stall Speed RPM Specification 2 000 RPM Wednesday March 12 2008 8 50 00 PM Page 268 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed Service Limit 1 850 2 150 RPM 7 If the measurements are out of the service limit problems and probable causes are listed in the table below Probable causes Stall speed rom Low fluid level high in the D and ATF pump output low R positions e Clogged ATF strainer Regulator valve stuck Slipping clutch Stall speed rpm Slippage 4th c utch high in the IR position Stall speed rom Engine output low low in the D and Engine throttle valve R positions closed e Torque converter one way Clutch slipping G01818466 Fig 210 Stall Speed Symptoms amp Causes Table PRESSURE TEST Special Tools Required e A T clutch pressure gauge set 07406 0020400 or 07406 0020401 e A T pressure hose 2210 mm 07MAJ PY4011A e A T pressure hose adapter O7MAJ PY40120 1 Before testing be sure the transmission fluid is filled to the proper level 2 Lift the vehicle up on a lift or apply the parking brake block rear wheels and raise the front of the vehicle Make sure it is securely supported Wednesday March 12 2008 8 50 00 PM Page 269 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIO
257. ura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed Connect the battery terminals ATF TEMPERATURE SENSOR TEST amp REPLACEMENT 1 Remove the splash shield 2 Remove the drain plug A and drain the automatic transmission fluid ATF Then reinstall the drain plug with a new sealing washer B A 18 x 1 5 mm 49 N m 5 0 kgf m 36 Ibf ft B G01818500 Fig 244 Removing The Drain Plug Disconnect the battery negative terminal then disconnect the battery positive terminal Remove the battery hold down bracket then remove the battery cover battery and battery tray Remove the intake air duct and air cleaner housing Loosen the two bolts securing the battery base from under the vehicle and remove the two bolts securing the battery base in the engine compartment then remove the battery base Remove the ground cable A transmission upper mount bracket B and bracket plate C Wednesday March 12 2008 8 50 01 PM Page 309 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed 10 x 1 25 mm 54 N m 6 x 1 0 mm 5 5 kgf m 40 bf ft 12 N m 1 2 kgf m 8 7 Ibf ft O 0 CY OQ E S i f c NNN E H 12 x 1 25 mm aa 54 N m 5 5 kgf m 40 Ibf ft G01818501 Fig 245 Removing The Ground Cable Transmission Upper Mount Bracket amp Bracket Plate 8 Place the transmission jack under the transmission and remove the transmission lower mount nuts Wedn
258. ure the system is OK at this time Check for poor connections or loose terminals at the shift solenoid valve E and PCM If the tester indicates NOT COMPLETE return to step 4 and recheck Turn the ignition switch OFF Jump the SCS line with the HDS Disconnect PCM connectors A 31P and C 22P Measure the resistance between PCM connector terminals C3 and A8 or A9 Is there 12 25 ohm YES Check for loose or poor connections at PCM connector terminal C3 If the connection is OK update the PCM if it does not have the latest software or substitute a known good PCM see PCM UPDATING amp SUBSTITUTION FOR TESTING then recheck If the symptom indication goes away with a known good PCM replace the original PCM NO Go to step 11 Wednesday March 12 2008 8 49 59 PM Page 253 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed PCM CONNECTORS LG2 BRN YEL LG1 BRN YEL SH E YEL nelli Ue yellsya ayeq o7 ishhshe shoa sfrofinfrafiafratis Jaane heka A 31P C 22P Wire side of female terminals G01818460 Fig 204 Measuring The Resistance Between PCM Connector Terminals C3 amp A8 Or A9 11 Disconnect the shift solenoid harness connector at the transmission housing 12 Check for continuity between shift solenoid harness connector terminal No 3 and body ground Is there 12 25 ohm YES Repair open in the wire between PCM connector terminal C3 and the shift solenoid ha
259. urn to step 1 and recheck DTC P0723 COUNTERSHAFT SPEED SENSOR INTERMITTENT FAILURE NOTE e Record all freeze data and review General Troubleshooting Information see GENERAL TROUBLESHOOTING INFORMATION before you troubleshoot e This code is caused by an electrical circuit problem and cannot be caused by a mechanical problem in the transmission Wednesday March 12 2008 8 49 56 PM Page 159 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed Record all freeze data and clear the DTC with the HDS Test drive the vehicle for 10 minutes under the same conditions as those indicated by the freeze data and check the OBD STATUS in DTCs MENU for a pass fail test of code P0723 Did the result indicate a fail YES Go to step 3 NO Intermittent failure the system is OK at this time Check for poor connections or loose terminals at the countershaft speed sensor and PCM If the tester indicates NOT COMPLETE return to step 2 and recheck Turn the ignition switch OFF Disconnect the countershaft speed sensor connector and inspect the connector and connector terminals to be sure they are making good contact Are the connector terminals OK YES Go to step 5 NO Repair the connector terminals then go to step 5 Connect the countershaft speed sensor connector Test drive the vehicle for several minutes and check the OBD STATUS in DTCs MENU for a pass fail test of code P0723 Did the result indicate a fail
260. ve C see A T CLUTCH PRESSURE CONTROL SOLENOID VALVE B amp C REPLACEMENT then go to step 11 Clear the DTC with the HDS Test drive the vehicle in the D position in all five gears at speeds over 12 mph 20 km h for more than 20 seconds then slow down to a stop Retest drive the vehicle in the D position in all five gears at speeds over 12 mph 20 km h for more than 20 seconds then slow down to a stop Check the OBD STATUS in DTCs MENU for a pass fail test of code P0796 Did the result indicate a pass YES The problem has been corrected NO Return to step and recheck DTC P0797 A T CLUTCH PRESSURE CONTROL SOLENOID VALVE C STUCK ON NOTE Record all freeze data and review General Troubleshooting Information see GENERAL TROUBLESHOOTING INFORMATION before you troubleshoot 1 Warm up the engine to normal operating temperature the radiator fan comes on 2 Check to be sure that the transmission is filled to the proper level and check for fluid leaks Wednesday March 12 2008 8 49 56 PM Page 179 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed 3 Drain the ATF see DRAINING amp REFILLING through a strainer Inspect the ATF and strainer for metal debris or burnt fluid Has the ATF deteriorated YES Replace ATF see DRAINING amp REFILLING and go to step 4 NO Go to step 8 Clear the DTC with the HDS Test drive the vehicle in the D position in all five gear
261. ved to the left by the increased pressure Then increased converter pressure 94 from the left side of the torque converter is completely released at the lock up control valve and torque converter pressure 91 engages the torque converter clutch securely the torque converter clutch is in full lock up condition NOTE When used left or right indicates direction on the hydraulic circuit TORQUE CONVERTER SHIFT SOLENOID VALVE E A T CLUTCH PRESSU CONTROL SOLENOID VALVE A SHIFT VALVE A and D MANUAL VALVE ATF PUMP G01818332 Fig 76 Full Lock up Fluid Flow SHIFT LEVER MECHANISM Wednesday March 12 2008 8 49 54 PM 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed The shift lever has five positions the P R N D and D positions The D position has two modes automatic shift mode and sequential sportshift mode with the shift lever moved to the M position The shift lever movement and position is indicated by the A T gear position indicator panel The shift lever can be shifted out of the P position and into the R position without pressing the shift lever The shift lock reverse lock mechanism is an additional shift lever lockout mechanism The shift lever is engaged with the shift lever link in the P R N D and D positions This unit shifts the transmission using the shift cable connected between the shift cable link and the transmission control shaft In the M positi
262. ween transmission range switch connector terminals No 3 and No 10 Is there voltage YES Update the PCM if it does not have the latest software or substitute a known good PCM see PCM UPDATING amp SUBSTITUTION FOR TESTING then recheck If the symptom indication goes away with a known good PCM replace the original PCM NO Repair open in the wire between the transmission range switch and PCM connector Wednesday March 12 2008 8 49 55 PM Page 103 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed terminal C9 then go to step 24 TRANSMISSION RANGE SWITCH CONNECTOR ATP D3 BLU PG BLK Wire side of female terminals G01818361 Fig 105 Measuring The Voltage Between Transmission Range Switch Connector Terminals No 3 amp No 10 24 Clear the DTC with the HDS and turn the ignition switch OFF 25 Raise the front of the vehicle make sure it is securely supported and allow the front wheels to rotate freely 26 Start the engine drive the vehicle in the D position until the vehicle speed reaches 35 mph 56 km h then slow down and stop the wheels Wednesday March 12 2008 8 49 55 PM Page 104 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed 27 Check the OBD STATUS in DTCs MENU for a pass fail test of code P0706 Did the result indicate a pass YES The problem has been corrected NO Return to step and recheck DTC P0711 PROBLEM IN ATF TEMPERATURE
263. y March 12 2008 8 49 55 PM Page 99 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed Shift to the D position and verify the ATP FWD and ATP D3 inputs with the HDS in the A T date list Is the ATP FWD and ATP D3 ON YES Go to step 13 NO Go to step 17 Clear the DTC with the HDS and turn the ignition switch OFF Raise the front of the vehicle make sure it is securely supported and allow the front wheels to rotate freely Start the engine drive the vehicle in the D position until the vehicle speed reaches 35 mph 56 km h then slow down and stop the wheels Check the OBD STATUS in DTCs MENU for a pass fail test of code P0706 Did the result indicate a fail YES Go to step 17 NO Intermittent failure the system is OK at this time Check for poor connections or loose terminals at the transmission range switch and PCM If the tester indicates NOT COMPLETE return to step 13 and recheck Turn the ignition switch OFF Disconnect the transmission range switch connector Check for continuity between transmission range switch connector terminal No 10 and body ground Is there continuity YES Go to step 20 NO Repair open in the wire between transmission range switch connector terminal No 10 and ground G101 or repair poor ground G101 then go to step 24 Wednesday March 12 2008 8 49 55 PM Page 100 2004 Acura TSX 2004 AUTOMATIC TRANSMISSIONS Diagnosis MCTA 5 Speed TRANSMISSION
264. zure The symptoms are mostly an rpm related ticking noise or a high pitched squeak Inspect the ATF strainer for clogging with particles of steel or aluminum If the ATF strainer is clogged replace it and flush the torque converter cooler and lines Check the D indicator and check for loose connectors Inspect the shift solenoid valve E for seizure and O rings for wear and damage Check for a misinstalled damaged drive plate Set idle rpm in gear to the specified idle speed If still no good adjust the engine and transmission mounts as outlined in the engine section of this service manual Replace the torque converter Check the ATF level and drain any excess Check if the ATF strainer is clogged If the ATF strainer is clogged with particles of steel or aluminum inspect the ATF pump If the ATF pump is OK find the damaged components that caused the debris and if no cause for contamination is found replace the torque converter Check the 1st 2nd 3rd 4th and 5th clutch pressures Inspect the clutch piston clutch piston check valve and O rings Check the spring retainer and retainer seal for wear and damage Inspect the clutch end plate to top disc clearance If the clearance is out of tolerance inspect the clutch discs and plates for wear and damage If the discs are worn or damaged replace the discs as a set Inspect the clutch waved plate height If the height is out of tolerance replace the waved plate If the discs

special tools - jrphotodesign.net

Contents

Download Pdf Manuals

Related Search

Related Contents