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2004 LEGACY SERVICE MANUAL QUICK REFERENCE INDEX

1. DIAGNOSTICS Check Yes CHECK POOR CONTACT IN CONNECTOR Is there poor contact Repair the con Go to step 2 Check the poor contact between ABSCM amp H U nector and ABS wheel speed sensor CHECK HARNESS CONNECTOR BETWEEN Is the resistance less than 0 5 Go to step 3 Repair the har ABSCM amp H U AND ABS WHEEL SPEED ness connector SENSOR between 1 Disconnect the connector B301 from ABSCM amp H U and ABSCM8H U ABS wheel speed 2 Disconnect the connector from ABS wheel sensor speed sensor 3 Measure the resistance between ABSCM amp H U connector and ABS wheel speed sensor connector Connector amp terminal DTC CO101 B301 No 3 R72 No 1 B301 No 4 R72 No 2 DTC C0102 B301 No 2 R73 No 1 B301 No 17 R73 No 2 DTC C0103 B301 No 5 B6 No 1 B301 No 6 B6 No 2 DTC C0104 B301 No 16 B15 No 1 B301 No 1 B15 No 2 CHECK GROUND SHORT OF HARNESS Is the resistance more than 1 Go to step 4 Repair the har Measure the resistance between ABSCM amp H U MQ ness connector connector and chassis ground between Connector amp terminal ABSCM amp H U and DTC C0101 ABS wheel speed B301 No 4 Chassis ground sensor DTC C0102 B301 No 17 Chassis ground DTC C0103 B301 No 6 Chassis ground DTC C0104 B301 No 1 Chassis ground CHECK ABS WHEEL SPEED SENSOR POW Is the voltage 5 16 V Go to step 6 ER SUPPLY CIRCUIT 1 Connect the
2. DTC DETECTING CONDITION Defective ABS wheel speed sensor signal noise abnormal signal etc Defective harness connector TROUBLE SYMPTOM ABS does not operate WIRING DIAGRAM e LHD model ABSCM amp H U TWISTED WIRE TWISTED WIRE TWISTED WIRE TWISTED WIRE Ga FRONT ABS FRONT ABS WHEEL SPEED WHEEL SPEED REAR ABS REAR ABS SENSOR LH SENSOR RH WHEEL SPEED WHEEL SPEED SENSOR LH SENSOR RH ABS00461 ABS diag 47 Diagnostic Procedure with Diagnostic Trouble Code DTC ABS DIAGNOSTICS e RHD model TWISTED WIRE TWISTED WIRE TWISTED WIRE TWISTED WIRE m FRONT ABS FRONT ABS WHEEL SPEED WHEEL SPEED REAR ABS REAR ABS SENSOR LH SENSOR RH WHEEL SPEED WHEEL SPEED SENSOR LH SENSOR RH ABS00413 ABS diag 48 Diagnostic Procedure with Diagnostic Trouble Code DTC ABS DIAGNOSTICS oa w wo CHECK OUTPUT OF ABS WHEEL SPEED Does the speed indicated on Go to step 2 Go to step 7 SENSOR USING SUBARU SELECT MONI the display change in response TOR to the speedometer reading 1 Select Current Data Display amp Save in during acceleration decelera Subaru Select Monitor tion when the steering wheel is 2 Read the ABS wheel speed sensor output in the straight ahead position corresponding to the faulty wheel in Subaru Select Monitor data display mode CHECK POOR CONTACT IN CONNECTOR jis there poor contact in con Repair the con Go to step 3 Turn the ignition
3. and G sensor CHECK ABSCM amp H U Is the same DTC displayed X Replace the Go to step 7 1 Connect all the connectors ABSOM only 2 Erase the memory Ref to ABS 8 3 Perform the inspection mode REPLACEMENT 4 Read the DTC ABS Control Mod ule and Hydraulic Control Unit ABSCM amp H U gt CHECK ANY OTHER DTC ON DISPLAY Is any other DTC displayed Inspectthe DIC Temporary poor using List of Diag contact occurs nostic Trouble Code DTC lt Ref to ABS diag 39 List of Diagnostic Trou ble Code DTC gt CHECK OPEN CIRCUIT IN G SENSOR OUT jis the resistance 1 8 2 4 Go to step 9 Repair the har PUT HARNESS AND GROUND HARNESS ko ness connector 1 Turn the ignition switch to OFF between G sensor 2 Disconnect the connector from ABSCM amp H and ABSCM amp H U U 3 Measure the resistance between ABSCM amp H U connector terminals Connector amp terminal B301 No 21 No 10 CHECK GROUND SHORT OF HARNESS Is the resistance more than 1 JGo to step 10 Repair the har Measure the resistance between ABSCM amp H U MQ ness connector connector and chassis ground between G sensor Connector amp terminal and ABSCM amp H U B301 No 21 Chassis ground ABS diag 80 Diagnostic Procedure with Diagnostic Trouble Code DTC CHECK G SENSOR 1 Remove the console box Remove the G sensor from vehicle 3 Connect the connector to G sensor Connect the connector to
4. e When id When turning to the right d When turning to the left 1 When spinning d Others a Directional stability cannot be obtained or the steering refuses to work when accelerating Ll Yes C No e When d When turning to the right D When turning to the left When spinning Others c Poor brake performance L1 Yes L1 No e What kind Long braking stopping distance d Brakes lock or drag d Long pedal stroke 1 Pedal sticks Others d Poor acceleration d Yes 1 No e What kind LJ Not accelerate d Engine stalls 1 Others e Occurrence of vibration d Yes C No e Where e What kind f Occurrence of noise L1 Yes L1 No e What kind 4 CONDITIONS UNDER WHICH TROUBLE OCCURS Environment a Weather d Fine d Cloudy d Rainy d Snowy d Others b Ambient temperature c Road J Inner city Suburbs D Highway 1 Local street d Uphill 4 Downhill Paved road 1 Gravel road 4 Muddy road d Sandy place 1 Others d Road surface d Dried Wet d Covered with fresh snow d Covered with hardened snow d Frozen slope LJ Others ABS diag 6 Check List for Interview ABS DIAGNOSTICS Condition ay Brakes ee TA 5 Accelerator Pron u c Vehicle speed km h d Advancing id When accelerating 1 When decelerating At low speed id When turning Others d Tire inflation pressure Front RH tire Front LH tire Rear RH tire Rear LH tire e
5. MALFUNCTION BROKEN WIRE INPUT VOLTAGE TOO HIGH Diagnostic Procedure with Diagnostic Trouble Code DTC gt C DTC C0103 ABS WHEEL SPEED SENSOR FR MALFUNCTION BROKEN WIRE INPUT VOLTAGE TOO HIGH NOTE For the diagnostic procedure refer to DTC C0104 Ref to ABS diag 43 DTC C0104 ABS WHEEL SPEED SENSOR FL MALFUNCTION BROKEN WIRE INPUT VOLTAGE TOO HIGH Diagnostic Procedure with Diagnostic Trouble Code DTC gt ABS diag 42 Diagnostic Procedure with Diagnostic Trouble Code DTC ABS DIAGNOSTICS D DTC C0104 ABS WHEEL SPEED SENSOR FL MALFUNCTION BROKEN WIRE INPUT VOLTAGE TOO HIGH DTC DETECTING CONDITION Defective ABS wheel speed sensor broken wire input voltage too high Defective harness connector TROUBLE SYMPTOM ABS does not operate WIRING DIAGRAM e LHD model ABSCM amp H U TWISTED WIRE TWISTED WIRE TWISTED WIRE TWISTED WIRE Ga FRONT ABS FRONT ABS WHEEL SPEED WHEEL SPEED REAR ABS REAR ABS SENSOR LH SENSOR RH WHEEL SPEED WHEEL SPEED SENSOR LH SENSOR RH ABS00461 ABS diag 43 Diagnostic Procedure with Diagnostic Trouble Code DTC ABS DIAGNOSTICS e RHD model TWISTED WIRE TWISTED WIRE TWISTED WIRE TWISTED WIRE m FRONT ABS FRONT ABS WHEEL SPEED WHEEL SPEED REAR ABS REAR ABS SENSOR LH SENSOR RH WHEEL SPEED WHEEL SPEED SENSOR LH SENSOR RH ABS00413 ABS diag 44 Diagnostic Procedure with Diagnostic Trouble Code DTC ABS
6. MEMORY MODE ABS Control Mod OPERATION Subaru Select Monitor ule and Hydraulic 4 Read the DTC Control Unit ABSCM amp H U gt CHECK ANY OTHER DTC ON DISPLAY Is any other DTC displayed Perform the diag It results from a nosis according to temporary noise DTC interference E DTC C0105 ABS WHEEL SPEED SENSOR RR MALFUNCTION ABS WHEEL SPEED SENSOR ABNORMAL SIGNAL NOTE For the diagnostic procedure refer to DIC C0108 Ref to ABS diag 47 DTC C0108 ABS WHEEL SPEED SENSOR FL MALFUNCTION ABS WHEEL SPEED SENSOR ABNORMAL SIGNAL Diagnostic Proce dure with Diagnostic Trouble Code DTC gt F DTC C0106 ABS WHEEL SPEED SENSOR RL MALFUNCTION ABS WHEEL SPEED SENSOR ABNORMAL SIGNAL NOTE For the diagnostic procedure refer to DIC C0108 Ref to ABS diag 47 DTC C0108 ABS WHEEL SPEED SENSOR FL MALFUNCTION ABS WHEEL SPEED SENSOR ABNORMAL SIGNAL Diagnostic Proce dure with Diagnostic Trouble Code DTC gt G DTC C0107 ABS WHEEL SPEED SENSOR FR MALFUNCTION ABS WHEEL SPEED SENSOR ABNORMAL SIGNAL NOTE For the diagnostic procedure refer to DIC C0108 Ref to ABS diag 47 DTC C0108 ABS WHEEL SPEED SENSOR FL MALFUNCTION ABS WHEEL SPEED SENSOR ABNORMAL SIGNAL Diagnostic Proce dure with Diagnostic Trouble Code DTC gt ABS diag 46 Diagnostic Procedure with Diagnostic Trouble Code DTC ABS DIAGNOSTICS H DTC C0108 ABS WHEEL SPEED SENSOR FL MALFUNCTION ABS WHEEL SPEED SENSOR ABNORMAL SIGNAL
7. ON 5 Measure the voltage between G sensor connector terminals Connector amp terminal B292 No 1 No 3 CHECK OPEN CIRCUIT IN G SENSOR OUT jis the resistance 1 8 2 4 Go to step 7 Repair the har PUT HARNESS AND GROUND HARNESS kQ ness connector 1 Turn the ignition switch to OFF between G sensor 2 Disconnect the connector from ABSCM amp H and ABSCM amp H U U 3 Measure the resistance between ABSCM amp H U connector terminals Connector amp terminal B301 No 21 No 10 CHECK GROUND SHORT IN G SENSOR Is the resistance more than 1 Go to step 8 Repair the har OUTPUT HARNESS MQ ness between G 1 Disconnect the connector from G sensor sensor and 2 Measure the resistance between ABSCM amp H U ABSCM amp H U connector and chassis ground Connector amp terminal B301 No 21 Chassis ground CHECK G SENSOR Is the voltage 2 1 2 5 V Go to step 9 Replace G sen 1 Connect the connector to G sensor when G sensor is on a level sor Ref to ABS 2 Connect the connector to ABSCM amp H U 18 G Sensor 3 Turn the ignition switch to ON 4 Measure the voltage between G sensor connector terminals Connector amp terminal B292 No 2 No 3 ABS diag 77 Diagnostic Procedure with Diagnostic Trouble Code DTC ABS DIAGNOSTICS Yes CHECK G SENSOR Is the voltage 3 6 4 1 V Go to step 10 Replace G sen Measure the voltage between G sensor con when G sensor is inclined
8. supply 1 13 15 10 15V Power supply 24 10 4 75 5 25 V G sensor Gomd 4 Output 21 10 2 1 2 5 V when the vehicle is on a level surface nS ii Less than 1 5 V when the stop light is OFF otherwise Po Ga ES 10 15 V when the stop light is ON After turning the ignition switch to ON 10 15 V during ABS warning light 22 15 1 5 seconds and less than 1 5 V after 1 5 seconds passed After turning the ignition switch to ON 10 15 V during Brake warning light EBD warning light 8 15 1 5 seconds and less than 1 5 V after 1 5 seconds passed Srip ime ja i MGR 7 15 Less than 1 5 V when no data is received 0 12 V pulse in communication ABS diagnosis connector 25 15 When the ignition switch is ON 10 15 V Power supply 1 18 15 When the ignition switch is ON 10 15 V Grounding line 48 A Vehicle speed output signal 23 15 0 lt gt 5 V pulse 1 Measure the I O signal voltage after removing the connector from the ABSCM amp H U terminal ABS diag 13 Control Module I O Signal ABS DIAGNOSTICS B WIRING DIAGRAM ABS00470 1 Battery 12 Rear inlet solenoid valve LH 24 Front ABS wheel speed sensor LH 2 Ignition switch 13 Rear outlet solenoid valve LH 25 Front ABS wheel speed sensor 3 ABS control module and hydraulic 14 Rear inlet solenoid valve RH RH control unit ABSCM amp H U 15 Rear outlet solenoid valve RH 26 Rear ABS wheel spee
9. switch to OFF nectors between ABSCM amp H U nector and ABS wheel speed sensor CHECK SOURCES OF SIGNAL NOISE Is the car phone radio wave Go to step 4 Install the radio Make sure the car phone radio wave device device like radio and etc elec wave device and like radio and etc electric components are tric components installed cor installed correctly rectly CHECK SOURCES OF SIGNAL NOISE Is the noise sources installed Check that the noise sources are such as an antenna installed near the sensor harness electric compo nents properly Install the noise Go to step 5 sources apart from the sensor har ness CHECK ABSCM amp H U Is the same DTC displayed 1 Connect all the connectors 2 Erase the memory 3 Perform the inspection mode lt Ref to ABS diag 17 CLEAR MEMORY MODE OPERATION Subaru Select Monitor gt 4 Read the DTC Replace the Go to step 6 ABSCM only lt Ref to ABS 8 REPLACEMENT ABS Control Mod ule and Hydraulic Control Unit ABSCM amp H U gt CHECK ANY OTHER DTC ON DISPLAY Is any other DTC displayed Perform the diag It results from a nosis according to temporary noise DTC interference CHECK INSTALLATION OF ABS WHEEL Is the ABS wheel speed sen Go to step 8 Tighten the ABS wheel speed sen SPEED SENSOR sor installation bolt tightened 7 5 N m 0 76 kgf m 5 5 ft lb sor installation bolts CHECK ABS WHEEL SPEED SENSOR SIG Does the oscilloscope
10. to OFF 2 Connect the Subaru Select Monitor to data link connector 3 Turn the ignition switch to ON and Subaru Select Monitor to ON NOTE If the communication function of the Subaru Se lect Monitor cannot be executed normally check the communication circuit lt Ref to ABS diag 18 COMMUNICATION FOR INI TIALIZING IMPOSSIBLE INSPECTION Sub aru Select Monitor gt 4 Read the DTC lt Ref to ABS diag 25 OPERATION Read Diagnostic Trouble Code DTC gt 5 Record all DTCs and Freeze Frame Data PERFORM THE GENERAL DIAGNOSTICS Does the ABS warning light go Finish the diagno Check in accor 1 Inspect using General Diagnostic Table off after turning the ignition SIS dance with Diag lt Ref to ABS diag 82 General Diagnostic switch to ON nostic Procedure Table gt for ABS lt Ref to 2 Perform clear memory mode lt Ref to ABS diag 21 ABS diag 17 CLEAR MEMORY MODE WITHOUT DTC OPERATION Subaru Select Monitor INSPECTION 3 Perform the inspection mode lt Ref to Subaru Select ABS diag 26 Inspection Mode Monitor 4 Read the DTC Ref to ABS diag 15 READ DIAGNOSTIC TROUBLE CODE DTC OPERATION Subaru Select Monitor Check the DTC does not displayed ABS diag 2 Basic Diagnostic Procedure ABS DIAGNOSTICS PERFORM THE DIAGNOSIS Is DTC displayed Repeat step 1 to 4 JFinish the diagno 1 Refer to the List of Diagnostic Trouble until DTC is not C
11. with Diagnostic Trouble Code DTC ABS DIAGNOSTICS CHECK ANY OTHER DTC ON DISPLAY Is any other DTC displayed ABS diag 73 Inspect the DTC using List of Diag nostic Trouble Code DTC lt Ref to ABS diag 39 List of Diagnostic Trou ble Code DTC gt Temporary poor contact occurs NOTE Though ABS warn ing light remains to illuminate at this time it is normal Drive the vehicle at more than 12 km h 7 MPH in order to make ABS warning light go off Be sure to drive the vehicle and check the warning light goes off Diagnostic Procedure with Diagnostic Trouble Code DTC ABS DIAGNOSTICS W DTC C0116 FAULTY STOP LIGHT SWITCH DTC DETECTING CONDITION Defective stop light switch WIRING DIAGRAM BATTERY Imo STOP LIGHT SWITCH GDF WITH CRUISE CONTROL z WITHOUT CRUISE CONTROL ABS00462 ABS diag 74 Diagnostic Procedure with Diagnostic Trouble Code DTC ABS DIAGNOSTICS Check Yes CHECK OUTPUT OF STOP LIGHT SWITCH jis OFF displayed on the dis Go to step 2 Go to step 3 USING SUBARU SELECT MONITOR play 1 Select Current Data Display amp Save in Subaru Select Monitor 2 Release the brake pedal 3 Read the stop light switch signal in Subaru Select Monitor CHECK OUTPUT OF STOP LIGHT SWITCH jis ON displayed on the dis Go to step 5 Go to step 3 USING SUBARU SELECT MONITOR play 1 Depress the brake pedal 2 Read the stop lig
12. 2004 LEGACY SERVICE MANUAL QUICK REFERENCE INDEX CHASSIS SECTION FRONT SUSPENSION REAR SUSPENSION WHEEL AND TIRE SYSTEM DIFFERENTIALS This service manual has been prepared to provide SUBARU service personnel with the necessary information and data for the correct maintenance and repair ERO es DRIVE SHAFT SYSTEM This manual includes the procedures for maintenance disassembling reas sembling inspection and adjustment of ABS ABS components and diagnostics for guid ance of experienced mechanics Please peruse and utilize this manual fully to ensure complete repair work for satisfying our customers by keeping their vehicle in optimum condition When replacement of parts during repair work is needed be sure to use SUBARU genuine parts TRANSFER CASE ABS DIAGNOSTICS ABS diag VEHICLE DYNAMICS CONTROL VDC VDC VEHICLE DYNAMICS CONTROL VDC ypc diag DIAGNOSTICS BRAKE BR PARKING BRAKE POWER ASSISTED SYSTEM POWER STEERING All information illustration and specifi cations contained in this manual are based on the latest product information available at the time of publication approval FUJI HEAVY INDUSTRIES LTD G2320GE6 ABS DIAGNOSTICS ABS diag 1 2 3 4 5 6 do 8 9 melh meal i a Basic Diagnostic PIOCGGOLEG nana kard a ta Sit Tv a d a dox rues 2 Check List Tor IntervigW 25 tco a o a E a 4 Generali DESCHDUOMN suoi ns a eid 8 Electrical Compon
13. ABSCM amp H U Turn the ignition switch to ON 6 Measure the voltage between G sensor connector terminals Connector amp terminal B292 No 2 No 3 CHECK G SENSOR Measure the voltage between G sensor con nector terminals Connector amp terminal B292 No 2 No 3 CHECK G SENSOR Measure the voltage between G sensor con nector terminals Connector amp terminal B292 No 2 No 3 CHECK ABSCM amp H U b Turn the ignition switch to OFF Connect all the connectors 2 Erase the memory 4 Perform the inspection mode 5 Read the DTC CHECK ANY OTHER DTC ON DISPLAY Is the EE INN 2 1 2 5V when G sensor is on a level Is the voltage 3 6 4 1 V when G sensor is inclined for wards to 90 Is the voltage 0 5 1 0 V when G sensor is inclined backward to 90 Is the same DTC displayed Is any other DTC displayed ABS diag 81 ABS DIAGNOSTICS ue to Me 11 Go to step 12 Go to step 13 Replace the ABSCM only Ref to ABS 8 REPLACEMENT ABS Control Mod ule and Hydraulic Control Unit ABSCM amp H U Inspect the DTC Temporary poor using List of Diag contact occurs nostic Trouble Code DTC lt Ref to ABS diag 39 List of Diagnostic Trou ble Code DTC gt Replace Mn sen sor Ref to ABS 18 G Sensor gt Replace G sen sor Ref to ABS 18 G Sensor gt Replace G sen sor Ref to ABS 18 G
14. ABSCM amp H U connector 2 Turn the ignition switch to ON 3 Measure the voltage between ABS wheel speed sensor connector and chassis ground Connector amp terminal DTC C0101 Go to step 5 R72 No 1 Chassis ground DTC C0102 R73 No 1 Chassis ground DTC C0103 B6 No 1 Chassis ground DTC C0104 B15 No 1 Chassis ground ABS diag 45 Diagnostic Procedure with Diagnostic Trouble Code DTC ABS DIAGNOSTICS Yes CHECK ABSCM amp H U POWER SUPPLY CIR jis the voltage 10 15 V Go to step 7 Check the genera CUIT tor battery 1 Turn the ignition switch to OFF ABSCM amp H U 2 Disconnect the ABSCM amp H U connector power circuit 3 Turn the ignition switch to ON 4 Measure the voltage between ABSCM amp H U connector and chassis ground Connector amp terminal B301 No 18 B301 No 15 CHECK ABS WHEEL SPEED SENSOR SIG Is the pattern the same wave Go to step 7 Replace the speed NAL form as shown in the figure sensor 1 Install the ABS wheel speed sensor 2 Prepare an oscilloscope 3 Check ABS wheel speed sensor lt Ref to ABS 13 ABS WHEEL SPEED SENSOR INSPECTION Front ABS Wheel Speed Sen sor gt CHECK ABSCM amp H U Is the same DTC displayed Replace the Go to step 8 1 Connect all the connectors ABSOM only 2 Erase the memory Ref to ABS 8 3 Perform the inspection mode Ref to REPLACEMENT ABS diag 17 CLEAR
15. ALVE RH MALFUNC TION IN ABS CONTROL MODULE AND HYDRAULIC CONTROL UNIT ABSCM amp H U Diagnostic Procedure with Diagnostic Trouble Code DTC gt List of Diagnostic Trouble Code DTC ABS DIAGNOSTICS Content of diagnosis Display Reference target Ref to ABS diag 60 DTC C0127 REAR OUTLET SOLENOID VALVE RH MAL Outlet valve malfunc Rear outlet valve RH RR Pressure Reduc FUNCTION IN ABS CONTROL MODULE tion in hydraulic unit ing Valve malfunction AND HYDRAULIC CONTROL UNIT ABSCM amp H U Diagnostic Procedure with Diagnostic Trouble Code DTC gt lt Ref to ABS diag 68 DTC C0140 CAN Improper CAN com COMMUNICATION MALFUNCTION Diag munication nostic Procedure with Diagnostic Trouble Code DTC gt C0140 CAN communication malfunction ABS diag 41 Diagnostic Procedure with Diagnostic Trouble Code DTC ABS DIAGNOSTICS 12 Diagnostic Procedure with Diagnostic Trouble Code DTC A DTC C0101 ABS WHEEL SPEED SENSOR RR MALFUNCTION BROKEN WIRE INPUT VOLTAGE TOO HIGH NOTE For the diagnostic procedure refer to DTC C0104 Ref to ABS diag 43 DTC C0104 ABS WHEEL SPEED SENSOR FL MALFUNCTION BROKEN WIRE INPUT VOLTAGE TOO HIGH Diagnostic Procedure with Diagnostic Trouble Code DTC gt B DTC C0102 ABS WHEEL SPEED SENSOR RL MALFUNCTION BROKEN WIRE INPUT VOLTAGE TOO HIGH NOTE For the diagnostic procedure refer to DTC C0104 Ref to ABS diag 43 DTC C0104 ABS WHEEL SPEED SENSOR FL
16. BS DIAGNOSTICS 8 Inspection Mode A PROCEDURE Reproduce the malfunction occurrence condition as possible Drive the vehicle at a speed more than 40 km h 25 MPH for at least one minute ABS diag 26 Clear Memory Mode ABS DIAGNOSTICS 9 Clear Memory Mode A OPERATION For details concerning DTC clear operation refer to Subaru Select Monitor Ref to ABS diag 15 Subaru Select Monitor ABS diag 27 ABS Warning Light Brake Warning Light Illumination Pattern ABS DIAGNOSTICS 10 ABS Warning Light Brake Warning Light Illumination Pattern A INSPECTION 3 3 2 1 7 6 6 S 8 7 6 6 9 10 11 ABS00442 1 Ignition switch 5 ABS warning light 9 Brake warning light EBD warning 2 OFF 6 Light OFF light 3 ON 7 Light ON 10 Parking brake 4 Start 8 1 5 seconds 11 Released ABS diag 28 ABS Warning Light Brake Warning Light Illumination Pattern ABS DIAGNOSTICS 1 When the ABS warning light and brake warning light do not illuminate in accordance with this illumination pattern there must be an electrical malfunction 2 When ABS warning light remains constantly OFF check the combination meter circuit Ref to ABS di ag 30 ABS WARNING LIGHT DOES NOT COME ON ABS Warning Light Brake Warning Light Illumina tion Pattern 3 When ABS warning light does not go off check the combination meter circuit Ref to ABS diag 33 ABS WARNING LIGHT DOES NOT GO O
17. BS warning light WIRING DIAGRAM ABSCM amp H U ABS00415 ABS diag 63 Diagnostic Procedure with Diagnostic Trouble Code DTC ABS DIAGNOSTICS CHECK GROUND CIRCUIT OF ABSCM amp H U Is the resistance less than 0 5 Go to step 2 1 Turn the ignition switch to OFF 2 Disconnect the connector from ABSCM amp H U 3 Measure the resistance between ABSCM amp H U and chassis ground Connector amp terminal B301 No 15 Chassis ground CHECK POOR CONTACT IN CONNECTOR CHECK SOURCES OF SIGNAL NOISE CHECK SOURCES OF SIGNAL NOISE CHECK ABSCM amp H U 1 Connect all the connectors Erase the memory Perform the inspection mode Read the DTC 2 3 4 CHECK ANY OTHER DTC ON DISPLAY Is there poor contact in con nectors between battery igni tion switch and ABSCM amp H U Is the car telephone or the radio properly installed Are noise sources such as an antenna installed near the sensor harness Is the same DTC displayed Is any other DTC displayed ABS diag 64 Repair the con nector Go to step 4 Install the noise sources apart from the sensor har ness Replace the ABSOM only Ref to ABS 8 REPLACEMENT ABS Control Mod ule and Hydraulic Control Unit ABSCM amp H U Inspect the DTC using List of Diag nostic Trouble Code DTC Het to ABS diag 39 List of Diagnostic Trou ble Code DTC gt Repair the ABSCM amp H U ground harness
18. Brake pedal play e Suspension play or fatigue reduced damping Incorrect wiring or piping connections Road surface uneven e ABSCM amp H U solenoid valve ABS wheel speed sensor Brake caliper piston and pads Tire specifications tire wear and air pressures Incorrect wiring or piping connections Road surface uneven Incorrect wiring or piping connections Road surface uneven e ABSCM amp H U mount bushing ABS wheel speed sensor e Brake line e ABSCM amp H U mount bushing ABS wheel speed sensor Master cylinder Brake caliper piston pads and rotor e Brake line Brake booster and check valve e Suspension play or fatigue ABS wheel speed sensor Brake caliper piston pads and rotor e Parking Brake Brake line e Suspension play or fatigue ABS diag 82
19. CONTROL UNIT AB SCM amp H U Diagnostic Procedure with Diagnostic Trouble Code DTC ABS diag 55 Diagnostic Procedure with Diagnostic Trouble Code DTC ABS DIAGNOSTICS M DTC C0126 REAR INLET SOLENOID VALVE RH MALFUNCTION IN ABS CONTROL MODULE AND HYDRAULIC CONTROL UNIT ABSCM amp H U DTC DETECTING CONDITION Defective harness connector Defective inlet solenoid valve in ABSCM amp H U TROUBLE SYMPTOM ABS does not operate EBD does not operate NOTE Brake warning light comes on as well as ABS warning light ABS diag 56 Diagnostic Procedure with Diagnostic Trouble Code DTC ABS DIAGNOSTICS WIRING DIAGRAM BATTERY SBF 1 ONO Oz GENERATOR SBF 7 ALO O IGNITION SWITCH ABS00414 ABS diag 57 Diagnostic Procedure with Diagnostic Trouble Code DTC ABS DIAGNOSTICS Yes CHECK INPUT VOLTAGE OF ABSCM amp H U jis the voltage 10 15 V Go to step 2 Repair the 1 Turn the ignition switch to OFF ABSCM amp H U 2 Disconnect the connector from ABSCM amp H power circuit U 3 Run the engine at idle 4 Measure the voltage between ABSCM amp H U connector and chassis ground Connector amp terminal B301 No 18 Chassis ground CHECK GROUND CIRCUIT OF ABSCM amp H U Is the resistance less than 0 5 Go to step 3 Repair the 1 Turn the ignition switch to OFF ABSCM amp H U 2 Measure the resistance between ground harness ABSCM amp H U connector and chassis ground C
20. CS me 1 CHECK ILLUMINATION OF OTHER LIGHTS Do other warning lights illumi Go to step 2 Check the combi Turn the ignition switch to ON engine OFF nate nation meter 2 READ DTC Is DTC displayed Perform the diag Go to step 3 Read the DTC Ref to ABS diag 25 Read nosis according to Diagnostic Trouble Code DTC DTC CHECK GROUND SHORT OF HARNESS Is the resistance more than 1 JGo to step 4 Repair the har 1 Turn the ignition switch to OFF MO ness and connec 2 Disconnect the connector B301 from tor between ABSCM amp H U ABSCM amp H U and 3 Disconnect the connector i10 from the combination meter combination meter connector 4 Measure the resistance between ABSCM connector and chassis ground Connector amp terminal B301 No 22 Chassis ground CHECK ABSCM Is the resistance more than 1 JCheck the combi Replace the 1 Connect the connector B301 to the MO nation meter ABSCM only ABSCM amp H U Ref to ABS 8 2 Turn the ignition to ON REPLACEMENT 3 Immediately after turning ignition switch to ABS Control Mod ON within 1 5 seconds measure the resis ule and Hydraulic tance of harness between the combination Control Unit meter connector and chassis ground ABSCM amp H U gt Connector amp terminal 110 No 5 Chassis ground ABS diag 32 ABS Warning Light Brake Warning Light Illumination Pattern ABS DIAGNOSTICS C ABS WARNING LIGHT DOES NOT GO OFF DETECTING CONDIT
21. DTC DETECTING CONDITION Defective CAN communication TROUBLE SYMPTOM Possibly the vehicle soeed cannot output on CAN CHECK LAN SYSTEM Is there any fault in LAN sys Perform the diagnosis for LAN system lt Ref to tem ABSCM only LAN diag 24 OPERATION Read Diagnostic Trouble Code DTC gt lt Ref to ABS 8 REPLACEMENT ABS Control Mod ule and Hydraulic Control Unit ABSCM amp H U gt ABS diag 68 Diagnostic Procedure with Diagnostic Trouble Code DTC ABS DIAGNOSTICS U DTC C0114 VALVE RELAY MALFUNCTION DTC DETECTING CONDITION Defective valve relay TROUBLE SYMPTOM ABS does not operate EBD does not operate depending on the trouble contents NOTE Brake warning light comes on as well as ABS warning light when EBD does not operate WIRING DIAGRAM BATTERY SBF 1 CN SBF 7 Se No 1 O IGNITION SWITCH iuo ABSCM amp H U MOTOR RELAY SOLENOID FL INLET FL OUTLET FR INLET FR OUTLET RL INLET RL OUTLET RR INLET RR OUTLET VALVE RELAY IQ ABS00416 ABS diag 69 Diagnostic Procedure with Diagnostic Trouble Code DTC ABS DIAGNOSTICS CHECK INPUT VOLTAGE OF ABSCM amp H U Is the voltage 10 15 V Go to step 2 1 Turn the ignition switch to OFF 2 Disconnect the connector from ABSCM amp H Repair the har ness connector between battery and ABSCM amp H U U 3 Run the engine at idle 4 Measure the voltage between ABSCM amp H U connecto
22. Degree of wear Front RH tire Front LH tire Rear RH tire Rear LH tire f Genuine parts are used U Yes L1 No g Tire chain is attached Li Yes C No h T type tire is used O Yes 1 No Condition of suspension alignment j Loading state k Repair parts are used L1 Yes No e Contents I Others ABS diag 7 General Description ABS DIAGNOSTICS 3 General Description A CAUTION 1 SUPPLEMENT AL RESTRAINT SYSTEM AIRBAG Airbag system wiring harness is routed near the ABS wheel speed sensor and ABSCM amp H U CAUTION All airbag system wiring harness and con nectors are colored yellow Do not use the elec trical test equipment on these circuits Be careful not to damage the airbag system wiring harness when servicing the ABS wheel speed sensor and ABSCM amp H U B INSPECTION Before performing diagnosis check the following items which might affect ABS problems 1 BATTERY Measure battery voltage and check electrolyte Standard voltage 12 V or more Specific gravity More than 1 260 2 BRAKE FLUID 1 Check the brake fluid level 2 Check the brake fluid for leaks 3 HYDRAULIC UNIT Check the hydraulic unit e With brake tester Ref to ABS 8 CHECKING THE HYDRAULIC UNIT ABS OPERATION WITH BRAKE TESTER INSPECTION ABS Control Module and Hydraulic Control Unit ABSCM amp H U gt e Without brake tester lt Ref to ABS 7 CHECK ING THE HYDRAULIC UNIT ABS OPERATION B
23. E TWISTED WIRE TWISTED WIRE L mo FRONT ABS FRONT ABS WHEEL SPEED WHEEL SPEED REAR ABS REAR ABS SENSOR LH SENSOR RH WHEEL SPEED WHEEL SPEED SENSOR LH SENSOR RH ABS00461 ABS diag 52 Diagnostic Procedure with Diagnostic Trouble Code DTC ABS DIAGNOSTICS e RHD model TWISTED WIRE TWISTED WIRE TWISTED WIRE TWISTED WIRE m FRONT ABS FRONT ABS WHEEL SPEED WHEEL SPEED REAR ABS REAR ABS SENSOR LH SENSOR RH WHEEL SPEED WHEEL SPEED SENSOR LH SENSOR RH ABS00413 ABS diag 53 Diagnostic Procedure with Diagnostic Trouble Code DTC ABS DIAGNOSTICS WHETHER A WHEEL TURNED FREELY OR Did the wheels turn freely NOT Check if the wheels have been turned freely more than one minute such as when the vehi cle is jacked up under full lock cornering or when the wheels are not in contact with road surface Check for Yes ABS is normal Erase the memory NOTE When the wheels turn freely for a long time such as when the vehicle is towed or jacked up or when steer ing wheel is contin uously turned all the way this diag nostic trouble code may sometimes occur CHECK TIRE SPECIFICATIONS Are the tire specifications cor Go to step 3 Replace the tire Turn the ignition switch to OFF rect Go to step 2 2 3 CHECK WEAR OF TIRE Is the tire worn excessively Replace the tire Go to step 4 4 CHECK TIRE INFLATION PRESSURE Is the tire pressure
24. FF ABS Warning Light Brake Warning Light Illumination Pattern 4 When brake warning light does not go off check the brake warning light circuit combination meter circuit Ref to ABS diag 36 BRAKE WARNING LIGHT DOES NOT GO OFF ABS Warning Light Brake Warning Light Illumination Pattern NOTE Even though the ABS warning light does not go off after 1 5 seconds from ABS warning light illumination the ABS function operates normally when the warning light goes off while driving at approximately 12km h 7 MPH However the ABS function does not operate while the ABS warning light is illuminated ABS diag 29 ABS Warning Light Brake Warning Light Illumination Pattern ABS DIAGNOSTICS B ABS WARNING LIGHT DOES NOT COME ON DETECTING CONDITION Defective combination meter Defective harness TROUBLE SYMPTOM When the ignition switch is turned to ON engine OFF ABS warning light does not come on WIRING DIAGRAM e LHD model BATTERY SBF 1 SBF 7 eo IGNITION SWITCH U No 33 COMBINATION METER GROUND A TERMINAL 8 N ABS00459 ABS diag 30 ABS Warning Light Brake Warning Light Illumination Pattern ABS DIAGNOSTICS e RHD model BATTERY SBF 1 le LL tn o IGNITION amp SWITCH U O Q e e o Z COMBINATION METER GROUND A Cio TERMINAL B82 te ABS00440 ABS diag 31 ABS Warning Light Brake Warning Light Illumination Pattern ABS DIAGNOSTI
25. Go to step 3 Properly install the car telephone or the wireless trans mitter Go to step 5 Go to step 6 Temporary poor contact occurs Diagnostic Procedure with Diagnostic Trouble Code DTC ABS DIAGNOSTICS S DTC C0109 POWER VOLTAGE MALFUNCTION DTC DETECTING CONDITION Power voltage of the ABSCM amp H U is too low or too high TROUBLE SYMPTOM ABS does not operate EBD may not operate NOTE If EBD does not operate brake warning light comes on as well as ABS warning light Both warning lights go off if voltage returns ABS diag 65 Diagnostic Procedure with Diagnostic Trouble Code DTC ABS DIAGNOSTICS WIRING DIAGRAM BATTERY SBF 1 ONO Oz GENERATOR SBF 7 ALO O IGNITION SWITCH ABS00414 ABS diag 66 Diagnostic Procedure with Diagnostic Trouble Code DTC ABS DIAGNOSTICS Check Sp Check O CHECK GENERATOR Is the voltage 10 15 V E to i g the genera 1 Start the engine tor 2 Run the engine at idle after warming up 3 Measure the voltage between generator B terminal and chassis ground Terminals Generator B terminal Chassis ground CHECK BATTERY TERMINAL Are the positive and negative Go to step 3 Tighten the termi Turn the ignition switch to OFF battery terminals clamped nal tightly CHECK INPUT VOLTAGE OF ABSCM amp H U jis the voltage 10 15 V Go to step 4 Repair the 1 Disconnect the connector from ABSCM a
26. IN ABS CONTROL MODULE AND HYDRAULIC CONTROL UNIT ABSCM amp H U Diagnostic Procedure with Diagnostic Trouble Code DTC P DTC C0125 REAR OUTLET SOLENOID VALVE LH MALFUNCTION IN ABS CONTROL MODULE AND HYDRAULIC CONTROL UNIT ABSCM amp H U NOTE For the diagnostic procedure refer to DIC C0127 Ref to ABS diag 60 DTC C0127 REAR OUTLET SO LENOID VALVE RH MALFUNCTION IN ABS CONTROL MODULE AND HYDRAULIC CONTROL UNIT ABSCM amp H U Diagnostic Procedure with Diagnostic Trouble Code DTC gt ABS diag 59 Diagnostic Procedure with Diagnostic Trouble Code DTC ABS DIAGNOSTICS Q DTC C0127 REAR OUTLET SOLENOID VALVE RH MALFUNCTION IN ABS CONTROL MODULE AND HYDRAULIC CONTROL UNIT ABSCM amp H U DTC DETECTING CONDITION Defective harness connector Defective outlet solenoid valve in ABSCM amp H U TROUBLE SYMPTOM ABS does not operate EBD does not operate NOTE Brake warning light comes on as well as ABS warning light ABS diag 60 Diagnostic Procedure with Diagnostic Trouble Code DTC ABS DIAGNOSTICS WIRING DIAGRAM BATTERY SBF 1 ONO Oz GENERATOR SBF 7 ALO O IGNITION SWITCH ABS00414 ABS diag 61 Diagnostic Procedure with Diagnostic Trouble Code DTC ABS DIAGNOSTICS Yes CHECK INPUT VOLTAGE OF ABSCM amp H U jis the voltage 10 15 V Go to step 2 Repair the 1 Turn the ignition switch to OFF ABSCM amp H U 2 Disconnect the connector from ABSCM amp H power
27. ION Defective combination meter Open in harness TROUBLE SYMPTOM When starting the engine the ABS warning light is kept on WIRING DIAGRAM e LHD model BATTERY SBF 1 SBF 7 eo IGNITION SWITCH U No 33 COMBINATION METER GROUND A TERMINAL 8 N ABS00459 ABS diag 33 ABS Warning Light Brake Warning Light Illumination Pattern ABS DIAGNOSTICS e RHD model BATTERY SBF 1 le LL tn o IGNITION amp SWITCH U O Q e e o Z COMBINATION METER GROUND A Cio TERMINAL B82 te ABS00440 ABS diag 34 ABS Warning Light Brake Warning Light Illumination Pattern ABS DIAGNOSTICS READ DTC Is DTC displayed Perform the diag Go to step 2 Read the DTC Ref to ABS diag 25 Read nosis according to Diagnostic Trouble Code DTC DTC CHECK WIRING HARNESS Is the resistance less than 0 5 Go to step 3 Repair the har 1 Turn the ignition switch to OFF ness and connec 2 Disconnect the connector B301 from tor between ABSCM amp H U ABSCM amp H U and 3 Disconnect the connector i10 from the combination meter combination meter connector 4 Measure the resistance between ABSCM connector and combination meter connector Connector amp terminal B301 No 22 i10 No 5 CHECK POOR CONTACT IN CONNECTOR Is there poor contact Repair the con Go to step 4 P Creak poor comaa mateomeaos freee CHECK ABSCM a resistance less than 0 5 Check the
28. O GROUND TERMINAL B82 B81 N co tn ABS00459 ABS diag 22 Subaru Select Monitor ABS DIAGNOSTICS e RHD model BATTERY SBF 1 SBF 7 IGNITION SWITCH O No 5 e COMBINATION METER GROUND A no TERMINAL x WARNING LIGHT ABS WARNING LIGHT 4 ABS00440 ABS diag 23 Subaru Select Monitor ABS DIAGNOSTICS DATA CHECK SUBARU SELECT MONITOR Is ON indicated Replace the 1 Select Current Data Display amp Save in ABSOM only Subaru Select Monitor Ref to ABS 8 2 Read the condition of ABS warning light REPLACEMENT ABS Control Mod ule and Hydraulic Control Unit ABSCM amp H U gt CHECK WIRING HARNESS Is the resistance less than 0 5 Go to step 3 Measure the resistance between ABSCM con Q nector and combination meter connector Connector amp terminal i10 No 5 B301 No 22 CHECK POOR CONTACT IN CONNECTOR Is there poor contact in Repair the con ABSCM connector and combi nector nation meter connector ABS diag 24 Go to step 2 Repair the har ness and connec tor between ABSCM amp H U and combination meter connector Check the combi nation meter Read Diagnostic Trouble Code DTC ABS DIAGNOSTICS 7 Read Diagnostic Trouble Code DTC A OPERATION For details about reading of DTCs refer to Subaru Select Monitor Ref to ABS diag 15 Subaru Se lect Monitor ABS diag 25 Inspection Mode A
29. OFF 2 Measure the ignition power supply voltage between ABSCM amp H U connector and chassis ground Connector amp terminal B301 No 18 Chassis ground Does the ignition switch turn to ON Is the voltage more than 11 V Is there poor contact at battery terminal Is the system name and model year displayed on Subaru Select Monitor Is the system name and model year displayed on Subaru Select Monitor Is the resistance more than 1 MQ Is the voltage less than 1 V Is the resistance less than 0 5 Q Is the ABSCM amp H U connector inserted into ABSCM amp H U until it is locked by clamps Is the voltage 10 15 V ABS diag 19 o Go to step 2 Turn the ignition switch to ON and select ABS mode using Subaru Select Monitor Go to step 3 Charge or replace the battery Repair or tighten Go to step 4 the battery termi nal EL Replace Go to step 6 ABSCM amp H U lt Ref to ABS 6 ABS Control Mod ule and Hydraulic Control Unit ABSCM amp H U gt Go to step 7 Repair the har ness and connec tor between each control module and data link con nector Go to step 8 Repair the har ness and connec tor between each control module and data link con nector Go to step 9 Repair the har ness and connec tor between ABSCM amp H U and data link connec tor Go to step 10 Insert ABSCM amp H U connector into ABSCM amp H U Go to step 11 Repair the open
30. Sensor gt Go to step 14 General Diagnostic Table ABS DIAGNOSTICS 13 General Diagnostic Table A INSPECTION Vehicle is pulled to either right or left side Vehicle instability during braking Vehicle spins Long braking stopping distance Wheel locks Brake drag Poor brake performance Long brake pedal stroke Vehicle vertical pitching Unstable or uneven braking Excessive pedal vibration Noise from ABSCM amp H U Vibration and or noise while driving on slippery roads Noise from front of vehicle Noise from rear of vehicle e ABSCM amp H U solenoid valve ABS wheel speed sensor Brake caliper piston and pads e Wheel Alignment Tire specifications tire wear and air pressures Incorrect wiring or piping connections e Road surface uneven camber e ABSCM amp H U solenoid valve ABS wheel speed sensor Brake pads Tire specifications tire wear and air pressures Incorrect wiring or piping connections e ABSCM amp H U solenoid valve Brake pads Air in brake line Tire specifications tire wear and air pressures Incorrect wiring or piping connections e ABSCM amp H U solenoid valve motor ABS wheel speed sensor Incorrect wiring or piping connections e ABSCM amp H U solenoid valve ABS wheel speed sensor Master cylinder Brake caliper and piston e Parking Brake Axle and wheels Brake pedal play e Air in brake line
31. WIRING DIAGRAM ABSCM amp H U ABS G SENSOR ABS00419 ABS diag 76 Diagnostic Procedure with Diagnostic Trouble Code DTC ABS DIAGNOSTICS Check Yes CHECK OUTPUT OF G SENSOR USING Is the reading indicated on dis Go to step 2 Go to step 5 SUBARU SELECT MONITOR play 1 2 1 2 m s when G 1 Select Current Data Display amp Save in sensor is horizontal Subaru Select Monitor 2 Read the G sensor output on Subaru Select Monitor CHECK POOR CONTACT IN CONNECTOR Is there poor contact in con Repair the con Go to step 3 nector between ABSCM amp H U nector and G sensor CHECK ABSCM amp H U Is the same DTC displayed X Replace the Go to step 4 1 Connect all the connectors ABSOM only 2 Erase the memory Ref to ABS 8 3 Perform the inspection mode REPLACEMENT 4 Read the DTC ABS Control Mod ule and Hydraulic Control Unit ABSCM amp H U CHECK ANY OTHER DTC ON DISPLAY Is any other DTC displayed Inspectthe DTC Temporary poor using List of Diag contact occurs nostic Trouble Code DTC Het to ABS diag 39 List of Diagnostic Trou ble Code DTC gt CHECK INPUT VOLTAGE OF G SENSOR sthe voltage 4 75 5 25 V Go to step 6 Repair the har 1 Turn the ignition switch to OFF ness connector 2 Remove the console box between G sensor 3 Remove the G sensor from vehicle Do not and ABSCM amp H U disconnect connector 4 Turn the ignition switch to
32. Y PRESSURE GAUGE INSPECTION ABS Control Module and Hydraulic Control Unit AB SCM amp H U gt 4 BRAKE DRAG Check for brake drag 5 BRAKE PAD AND ROTOR Check the brake pad and rotor e FRONT Ref to BR 18 INSPECTION Front Brake Pad Ref to BR 19 INSPECTION Front Disc Rotor e REAR Ref to BR 25 INSPECTION Rear Brake Pad lt Ref to BR 26 INSPECTION Rear Disc Rotor 6 TIRE Check the tire specifications tire wear and air pres sure Ref to WT 2 SPECIFICATION General Description ABS diag 8 General Description ABS DIAGNOSTICS C PREPARATION TOOL 1 SPECIAL TOOL ILLUSTRATION TOOL NUMBER DESCRIPTION REMARKS 24082AA230 CARTRIDGE Troubleshooting for electrical system ST24082AA230 22771AA030 SUBARU SELECT _ Troubleshooting for electrical system MONITOR KIT English 22771AA030 Without printer German 22771AA070 Without printer e French 22771AA080 Without printer e Spanish 22771AA090 Without printer ST22771AA030 2 GENERAL TOOL TOOL NAME REMARKS Circuit tester Used for measuring resistance voltage and ampere Oscilloscope Used for measuring sensor ABS diag 9 Electrical Component Location ABS DIAGNOSTICS 4 Electrical Component Location A LOCATION 8 7 9 ABS00458 1 ABS control module and hydraulic 5 Data link connector 9 Caliper body control unit ABSCM amp H U For Subaru Select Monitor 10 Gsensor 2 Two wa
33. cedure with Diagnostic Trouble Code DTC ABS DIAGNOSTICS V DTC C0111 MOTOR MOTOR RELAY MALFUNCTION DTC DETECTING CONDITION Defective motor Defective motor relay Defective harness connector TROUBLE SYMPTOM ABS does not operate WIRING DIAGRAM BATTERY SBF 2 SBF 1 ue us Q e O IGNITION SBF 7 SWITCH umo ABSCM amp H U MOTOR RELAY SOLENOID VALVE FL INLET FL OUTLET FR INLET FR OUTLET RL INLET RL OUTLET RR INLET RR OUTLET IQ IQ ABS00417 ABS diag 71 Diagnostic Procedure with Diagnostic Trouble Code DTC ABS DIAGNOSTICS Check Step O y Chek Ye X No CHECK INPUT VOLTAGE OF ABSCM amp H U jis the voltage 10 15 V Go to a z Repair the har 1 Turn the ignition switch to OFF ness connector 2 Disconnect the connector from ABSCM amp H between battery U and ABSCM amp H U 3 Turn the ignition switch to ON 4 Measure the voltage between ABSCM amp H U connector and chassis ground Connector amp terminal B301 No 13 Chassis ground CHECK GROUND CIRCUIT OF MOTOR Is the resistance less than 0 5 Go to step 3 Repair the 1 Turn the ignition switch to OFF Q ABSCM amp H U 2 Measure the resistance between ground harness ABSCM amp H U connector and chassis ground Connector amp terminal B301 No 12 Chassis ground CHECK INPUT VOLTAGE OF ABSCM amp H U jis the voltage 10 15 V Go to step 4 R
34. circuit U 3 Run the engine at idle 4 Measure the voltage between ABSCM amp H U connector and chassis ground Connector amp terminal B301 No 18 Chassis ground CHECK GROUND CIRCUIT OF ABSCM amp H U Is the resistance less than 0 5 Go to step 3 Repair the 1 Turn the ignition switch to OFF ABSCM amp H U 2 Measure the resistance between ground harness ABSCM amp H U connector and chassis ground Connector amp terminal B301 No 15 Chassis ground CHECK POOR CONTACT IN CONNECTOR jis there poor contact in con Repair the con Go to step 4 nector between generator bat nector tery and ABSCM amp H U CHECK ABSCM amp H U Is the same DTC displayed Replace Go to step 5 1 Connect all the connectors ABSCM amp H U 2 Erase the memory Ref to ABS 6 3 Perform the inspection mode ABS Control Mod 4 Read the DTC ule and Hydraulic Control Unit ABSCM amp H U gt CHECK ANY OTHER DTC ON DISPLAY Is any other DTC displayed Inspectthe DIC Temporary poor using List of Diag contact occurs nostic Trouble Code DTC lt Ref to ABS diag 39 List of Diagnostic Trou ble Code DTC gt ABS diag 62 Diagnostic Procedure with Diagnostic Trouble Code DTC ABS DIAGNOSTICS R DTC C0110 ABS CONTROL MODULE MALFUNCTION DTC DETECTING CONDITION Defective ABSCM amp H U TROUBLE SYMPTOM ABS does not operate EBD does not operate NOTE Brake warning light comes on as well as A
35. circuit in harness between ABSCM amp H U and battery Subaru Select Monitor ABS DIAGNOSTICS CHECK HARNESS CONNECTOR BETWEEN Is the resistance less than 0 5 Go to step 12 ABSCM amp H U AND CHASSIS GROUND 1 Turn the ignition switch to OFF 2 Disconnect the connector from ABSCM amp H U 3 Measure the resistance of harness between ABSCM amp H U and chassis ground Connector amp terminal B301 No 15 Chassis ground CHECK POOR CONTACT IN CONNECTOR jis there poor contact in control Repair the con module power supply ground nector circuit and data link connector ABS diag 20 Repair the open circuit in harness between ABSCM8H U and inhibitor side con nector and poor contact in cou pling connector Replace the ABSOM oniv Ref to ABS 8 REPLACEMENT ABS Control Mod ule and Hydraulic Control Unit ABSCM amp H U Subaru Select Monitor ABS DIAGNOSTICS 2 WITHOUT DTC DETECTING CONDITION Defective combination meter Open in harness TROUBLE SYMPTOM e ABS warning light does not go off e NO TROUBLE CODE will be displayed on the Subaru Select Monitor NOTE When the ABS warning light is OFF and NO TROUBLE CODE is displayed on Subaru Select Monitor the system is in normal condition ABS diag 21 Subaru Select Monitor ABS DIAGNOSTICS L HD model WIRING DIAGRAM BATTERY SBF 1 L 14S IGNITION SWITCH z 2 EF lt a O
36. combi Replace the 1 Connect the connector B301 to the nation meter ABSCM only ABSCM amp H U Ref to ABS 8 2 Turn the ignition switch to ON REPLACEMENT 3 Measure the resistance between combina ABS Control Mod tion meter connector and chassis ground ule and Hydraulic Connector amp terminal Control Unit i10 No 5 Chassis ground ABSCM amp H U gt ABS diag 35 ABS Warning Light Brake Warning Light Illumination Pattern ABS DIAGNOSTICS D BRAKE WARNING LIGHT DOES NOT GO OFF DETECTING CONDITION e Brake warning light circuit is shorted Defective sensor connector TROUBLE SYMPTOM After starting the engine the brake warning light is kept on though the parking lever is released WIRING DIAGRAM e LHD model BATTERY SBF 1 N LL ta o IGNITION SWITCH BRAKE FLUID LEVEL SWITCH PARKING BRAKE fe O SWITCH ABS00460 ABS diag 36 2 ABS DIAGNOSTICS 0 _16 7 8 9h0 11 2134 4 5 16 ji7jiejiokop1kz Kal 2 lt o O n t lt BATTERY SBF 1 IGNITION SWITCH L 44S BRAKE FLUID LEVEL SWITCH ABS Warning Light Brake Warning Light Illumination Pattern e RHD model ABS00412 ABS diag 37 ABS Warning Light Brake Warning Light Illumination Pattern ABS DIAGNOSTICS ep o No CHECK INSTALLATION OF ABSCM amp H U Is the connector correctly Go to step 2 Insert the CONNECTOR inserted ABSCM amp H U con 1 Turn the ignition switch to OFF n
37. correct Go to step 5 Is the ABS wheel speed sen sor installation bolt tightened 7 5 N m 0 76 kgf m 5 5 ft lb 5 CHECK INSTALLATION OF ABS WHEEL SPEED SENSOR CHECK ABS WHEEL SPEED SENSOR SIG NAL 1 Install the ABS wheel speed sensor 2 Prepare an oscilloscope 3 Check ABS wheel speed sensor Ref to ABS 13 ABS WHEEL SPEED SENSOR INSPECTION Front ABS Wheel Speed Se SOr gt four of them the waveform pattern like shown in the figure when the tire is slowly turned Does the oscilloscope indication repeat the waveform pattern like n tire is slowly turned in equal speed for more one rotation CHECK ABS WHEEL SPEED SENSOR AND Is there foreign particles MAGNETIC ENCODER CHECK ABSCM amp H U 1 Connect all the connectors 2 Erase the memory 3 Perform the inspection mode Ref to ABS diag 17 CLEAR MEMORY MODE OPERATION Subaru Select Monitor 4 Read the DTC breakage or damage in the pole piece of ABS wheel speed sensor or magnetic encoder Is the same DTC displayed ABS diag 54 Does the oscilloscope indicate shown in the figure when the Remove dirt com pletely Replace the ABS wheel speed sensor or magnetic encoder as a unit with hub unit bearing when itis broken or damaged Replace the ABSCM only Ref to ABS 8 REPLACEMENT ABS Control Mod ule and Hydraulic Control Unit ABSCM amp H U Adjust the tire pressure T
38. ct Monitor ABS DIAGNOSTICS 3 CLEAR MEMORY MODE 1 On the Main Menu display screen select the 2 Each System Check and press the YES key 2 On the System Selection Menu display screen select the Brake Control and press the YES key 3 Press the YES key after the ABS is displayed 4 On the Brake Control Diagnosis display screen select the Clear Memory and press the YES key Display Contents to be monitored Function of clearing DTC 5 When Done and Turn ignition switch OFF are shown on the display screen turn the Subaru Se lect Monitor and ignition switch to OFF NOTE For details concerning operation procedure refer to the SUBARU SELECT MONITOR OPERATION MANUAL 4 ABS SEQUENCE CONTROL Display Contents to be monitored Operate the valve and Het to ABS ABS sequence pump motor continuously 10 ABS to perform the ABS Sequence Con control sequence control trol 5 FREEZE FRAME DATA NOTE e Data stored at the time of trouble occurrence is shown on display e Each time trouble occurs the latest information is stored in the freeze frame data in memory Freeze frame data will be memorized up to three e f a Freeze Frame Data is not properly stored in memory due to a drop in ABS control module pow er supply etc the DTC which is suffixed with a question mark appears on the Subaru Select Monitor display This shows it may be an unreliable reading Dis
39. d sensor LH 4 ABS control module 16 Body integrated unit 27 Rear ABS wheel speed sensor b Valve relay 17 Diagnosis connector RH 6 Motor relay 18 Data link connector 28 Parking brake switch 7 Motor 19 ABS warning light 29 Brake fluid level switch 8 Front inlet solenoid valve LH 20 Brake warning light 30 Engine control module ECM 9 Front outlet solenoid valve LH 21 Stop light switch 31 Transmission control module 10 Front inlet solenoid valve RH 22 Stop light TCM 11 Front outlet solenoid valve RH 23 G sensor ABS diag 14 Subaru Select Monitor 6 Subaru Select Monitor A OPERATION 1 READ DIAGNOSTIC TROUBLE CODE DTC 1 Prepare the Subaru Select Monitor kit Ref to ABS diag 9 SPECIAL TOOL PREPARATION TOOL General Description ABS00111 2 Connect the diagnosis cable to Subaru Select Monitor 3 Insert the cartridge to Subaru Select Monitor lt Ref to ABS diag 9 SPECIAL TOOL PREPA RATION TOOL General Description ABS00112 4 Connect the Subaru Select Monitor to data link connector 1 Data link connector is located in the lower portion of the instrument panel on the driver s side ABS00465 1 Data link connector 2 Connect the diagnosis cable to data link connector ABS DIAGNOSTICS CAUTION Do not connect the scan tools except for Suba ru Select Monitor 5 Turn the ignition switch to ON engine OFF and turn the Subaru Select Moni
40. e memory 3 Perform the inspection mode lt Ref to ABS diag 17 CLEAR MEMORY MODE OPERATION Subaru Select Monitor gt 4 Read the DTC CHECK ANY OTHER DTC ON DISPLAY Is the same DTC displayed Is any other DTC displayed ABS diag 50 Yes Go to step 12 Replace the ABSCM only lt Ref to ABS 8 REPLACEMENT ABS Control Mod ule and Hydraulic Control Unit ABSCM amp H U gt Perform the diag nosis according to DTC Install the noise sources apart from the sensor har ness Go to step 13 It results from a temporary noise interference NOTE Though ABS warn ing light remains to illuminate at this time it is normal Drive the vehicle at more than 12 km h 7 MPH in order to make ABS warning light go off Be sure to drive the vehicle and check the warning light goes off Diagnostic Procedure with Diagnostic Trouble Code DTC ABS DIAGNOSTICS I DTC C0115 ABS WHEEL SPEED SENSOR SIGNAL MALFUNCTION IN ONE OF FOUR WHEELS DTC DETECTING CONDITION Defective ABS wheel speed sensor signal noise abnormal signal etc Defective magnetic encoder e When a wheel is turned freely for a long time TROUBLE SYMPTOM ABS does not operate EBD does not operate NOTE Brake warning light comes on as well as ABS warning light ABS diag 51 Diagnostic Procedure with Diagnostic Trouble Code DTC ABS DIAGNOSTICS WIRING DIAGRAM e LHD model TWISTED WIRE TWISTED WIR
41. e with Diagnostic Trouble Code DTC gt Ref to ABS diag 46 DTC C0106 ABS WHEEL SPEED SENSOR RL MALFUNC TION ABS WHEEL SPEED SENSOR ABNORMAL SIGNAL Diagnostic Proce dure with Diagnostic Trouble Code DTC gt lt Ref to ABS diag 46 DTC C0107 ABS WHEEL SPEED SENSOR FR MALFUNC TION ABS WHEEL SPEED SENSOR ABNORMAL SIGNAL Diagnostic Proce dure with Diagnostic Trouble Code DTC gt lt Ref to ABS diag 47 DTC C0108 ABS WHEEL SPEED SENSOR FL MALFUNC TION ABS WHEEL SPEED SENSOR ABNORMAL SIGNAL Diagnostic Proce dure with Diagnostic Trouble Code DTC gt Ref to ABS diag 65 DTC C0109 POWER VOLTAGE MALFUNCTION Diagnostic Pro cedure with Diagnostic Trouble Code DTC gt Ref to ABS diag 63 DTC C0110 ABS CONTROL MODULE MALFUNCTION Diagnostic Procedure with Diagnostic Trou ble Code DTC gt Ref to ABS diag 71 DTC C0111 MOTOR MOTOR RELAY MALFUNCTION Diagnostic Procedure with Diagnostic Trou ble Code DTC gt Ref to ABS diag 69 DTC C0114 VALVE RELAY MALFUNCTION Diagnostic Proce dure with Diagnostic Trouble Code DTC gt Motor motor relay on failure Motor and Motor Relay C0111 C0114 Valve relay on failure Valve Relay ABS diag 39 ABS DIAGNOSTICS Content of diagnosis Display Reference target C0115 C0116 C0118 C0119 C0126 ABS wheel speed sen sor malfunction ABS wheel speed sensor abnormal signal List of Diagnostic Trouble Code DTC Ab
42. ector until the 2 Check that the ABSCM amp H U connector is clamp locks onto inserted to ABSCM amp H U until the clamp locks it onto it READ DTC Is DTC displayed Perform the diag Go to step 3 Read the DTC lt Ref to ABS diag 25 Read nosis according to Diagnostic Trouble Code DTC gt DTC CHECK THE BRAKE FLUID AMOUNT Is the amount of brake fluid Go to step 4 Replenish brake Check the amount of brake fluid in the reser between the lines of MAX and fluid to the speci voir tank of master cylinder MIN fied value CHECK BRAKE FLUID LEVEL SWITCH Is the resistance more than 1 Go to step 5 Replace the mas 1 Disconnect the level switch connector B16 MO ter cylinder from master cylinder 2 Measure the resistance of master cylinder terminals Terminals No 1 No 2 CHECK PARKING BRAKE SWITCH Is the resistance more than 1 Go to step 6 Replace the park 1 Disconnect the connector R4 from park MO ing brake switch ing brake switch 2 Release the parking brake 3 Measure the resistance between parking brake switch terminal and chassis ground CHECK GROUND SHORT OF HARNESS Is the resistance more than 1 Go to step 7 Repair the har 1 Disconnect the connector i10 from combi MQ ness connector nation meter between combina 2 Measure the resistance between combina tion meter and tion meter connector and chassis ground parking brake Connector amp terminal switch i10 No 8 Chassis g
43. ent Location Rs 10 Control Module WO SIGMA sa An box RH uen neue 12 SuDarusseleet MONITOR LAS LS er ne O et 15 Read Diagnostic Trouble Code DIC L nnnnnnnnnenennnn nn nnenn nn 25 INSPECIION MOUSE great a aa A d 26 Clear Memory MO ne a nn a 27 ABS Warning Light Brake Warning Light Illumination Pattern 28 List of Diagnostic Trouble Code DIC Lee ennnnnnnnen ran nn nn nn 39 Diagnostic Procedure with Diagnostic Trouble Code DTC 42 General Diagnostic Table 82 Basic Diagnostic Procedure ABS DIAGNOSTICS 1 Basic Diagnostic Procedure A PROCEDURE CAUTION Remove foreign matters dust water oil etc from the ABSCM amp H U connector during removal and installation NOTE e To check harness for broken wires or short circuits shake trouble spot or connector Refer to Check List for Interview Ref to ABS diag 4 Check List for Interview Check Yes CHECK PRE INSPECTION Is the component that might Go to step 2 Repair or replace each unit 1 Ask the customer when and how the trou influence the ABS problem ble occurred using interview checklist Ref to normal ABS diag 4 Check List for Interview 2 Before performing diagnostics check the component which might affect ABS problems Ref to ABS diag 8 INSPECTION General Description CHECK INDICATION OF DTC ON SCREEN jis DTC displayed Go to step 4 Go to step 3 1 Turn the ignition switch
44. epair the har 1 Run the engine at idle ness connector 2 Measure the voltage between ABSCM amp H between battery U connector and chassis ground ignition switch and Connector amp terminal ABSCM amp H U B301 No 18 Chassis ground CHECK GROUND CIRCUIT OF ABSCM amp H U Is the resistance less than 0 5 Go to step 5 Repair the 1 Turn the ignition switch to OFF Q ABSCM amp H U 2 Measure the resistance between ground harness ABSCM amp H U connector and chassis ground Connector amp terminal B301 No 15 Chassis ground CHECK MOTOR OPERATION Can the motor revolution noise Go to step 6 Replace Operate the ABS sequence control lt Ref to buzz be heard when carrying ABSCM amp H U ABS 10 ABS Sequence Control gt out the ABS sequence control lt Ref to ABS 6 NOTE ABS Control Mod Use the diagnosis connector to operate the ule and Hydraulic ABS sequence control Control Unit ABSCM amp H U gt Repair the con Go to step 7 nector CHECK POOR CONTACT IN CONNECTOR Is there poor contact in con Turn the ignition switch to OFF nector between generator bat tery and ABSCM amp H U CHECK ABSCM amp H U Is the same DTC displayed 1 Connect all the connectors Erase the memory 3 Perform the inspection mode Read the DTC Replace Go to step 8 ABSCM8H U Ref to ABS 6 ABS Control Mod ule and Hvdraulic Control Unit ABSCM amp H U gt ABS diag 72 Diagnostic Procedure
45. for sor Hef to ABS nector terminals wards to 90 18 G Sensor Connector amp terminal B292 No 2 No 3 CHECK G SENSOR Is the voltage 0 5 1 0 V Go to step 11 Replace G sen Measure the voltage between G sensor con when G sensor is inclined sor Hef to ABS nector terminals backward to 90 18 G Sensor Connector amp terminal B292 No 2 No 3 CHECK POOR CONTACT IN CONNECTOR jis there poor contact in con Repair the con Go to step 12 Turn the ignition switch to OFF nector between ABSCM amp H U nector and G sensor CHECK ABSCM amp H U Is the same DTC displayed Replace the Go to step 13 1 Connect all the connectors ABSOM only 2 Erase the memory Ref to ABS 8 3 Perform the inspection mode REPLACEMENT 4 Read the DTC ABS Control Mod ule and Hydraulic Control Unit ABSCM amp H U gt CHECK ANY OTHER DTC ON DISPLAY Is any other DTC displayed Inspectthe DIC Temporary poor using List of Diag contact occurs nostic Trouble Code DTC lt Ref to ABS diag 39 List of Diagnostic Trou ble Code DTC gt ABS diag 78 Diagnostic Procedure with Diagnostic Trouble Code DTC ABS DIAGNOSTICS Y DTC C0119 G SENSOR OUTPUT VOLTAGE MALFUNCTION DTC DETECTING CONDITION Defective G sensor output signal TROUBLE SYMPTOM ABS does not operate WIRING DIAGRAM ABSCM amp H U ABS G SENSOR ABS00419 ABS diag 79 Diagnostic Procedure w
46. ht switch output in Subaru Select Monitor 3 CHECK IF STOP LIGHTS COME ON Does the stop light illuminate Go to step 4 Repair the stop CHECK OPEN CIRCUIT IN HARNESS Is the voltage 10 15 V Go to step 5 Repair harness 1 Turn the ignition switch to OFF between stop light 2 Disconnect the connector from ABSCM amp H switch and U ABSCM amp H U con 3 Depress the brake pedal nector 4 Measure the voltage between ABSCM amp H U connector and chassis ground Connector amp terminal B301 No 20 Chassis ground CHECK POOR CONTACT IN CONNECTOR Is there poor contact in con Go to step 6 Repair the con nector between stop light nector switch and ABSCM amp H U CHECK ABSCM amp H U Is the same DTC displayed Replace the Go to step 7 1 Connect all the connectors ABSOM only 2 Erase the memory Ref to ABS 8 3 Perform the inspection mode REPLACEMENT 4 Read the DTC ABS Control Mod ule and Hydraulic Control Unit ABSCM amp H U gt CHECK ANY OTHER DTC ON DISPLAY Is any other DTC displayed Inspectthe DIC Temporary poor using List of Diag contact occurs nostic Trouble Code DTC lt Ref to ABS diag 39 List of Diagnostic Trou ble Code DTC gt ABS diag 75 Diagnostic Procedure with Diagnostic Trouble Code DTC ABS DIAGNOSTICS X DTC C0118 G SENSOR OUTPUT VOLTAGE MALFUNCTION DTC DETECTING CONDITION Defective G sensor TROUBLE SYMPTOM ABS does not operate
47. ighten the ABS wheel speed sen sor installation bolts Diagnostic Procedure with Diagnostic Trouble Code DTC ABS DIAGNOSTICS Perform the diag lt results from a nosis according to temporary noise DTC interference illuminate at this time it is normal Drive the vehicle at more than 12 km h 7 MPH in order to make ABS warning light go off Be sure to drive the vehicle check J DTC C0120 FRONT INLET SOLENOID VALVE LH MALFUNCTION IN ABS CONTROL MODULE AND HYDRAULIC CONTROL UNIT ABSCM amp H U NOTE For the diagnostic procedure refer to DTC C0126 Ref to ABS diag 56 DTC C0126 REAR INLET SOLE NOID VALVE RH MALFUNCTION IN ABS CONTROL MODULE AND HYDRAULIC CONTROL UNIT AB SCM amp H U Diagnostic Procedure with Diagnostic Trouble Code DTC K DTC C0122 FRONT INLET SOLENOID VALVE RH MALFUNCTION IN ABS CONTROL MODULE AND HYDRAULIC CONTROL UNIT ABSCM amp H U NOTE For the diagnostic procedure refer to DTC C0126 Ref to ABS diag 56 DTC C0126 REAR INLET SOLE NOID VALVE RH MALFUNCTION IN ABS CONTROL MODULE AND HYDRAULIC CONTROL UNIT AB SCM amp H U Diagnostic Procedure with Diagnostic Trouble Code DTC L DTC C0124 REAR INLET SOLENOID VALVE LH MALFUNCTION IN ABS CONTROL MODULE AND HYDRAULIC CONTROL UNIT ABSCM amp H U NOTE For the diagnostic procedure refer to DIC C0126 Ref to ABS diag 56 DTC C0126 REAR INLET SOLE NOID VALVE RH MALFUNCTION IN ABS CONTROL MODULE AND HYDRAULIC
48. indicate Go to step 10 Go to step 9 NAL the waveform pattern like 1 Install the ABS wheel speed sensor shown in the figure when the 2 Prepare an oscilloscope tire is slowly turned Does the 3 Check ABS wheel speed sensor lt Ref to oscilloscope indication repeat ABS 13 ABS WHEEL SPEED SENSOR the waveform pattern like INSPECTION Front ABS Wheel Speed Sen jshown in the figure when the SOr gt tire is slowly turned in equal Remove dirt com Go to step 10 pletely Replace the ABS wheel speed sensor or magnetic encoder as a unit with hub unit bearing when itis broken or damaged speed for more one rotation CHECK SOURCES OF SIGNAL NOISE Is the car phone radio wave Go to step 11 Install the radio Make sure the car phone radio wave device jdevice like radio and etc elec wave device and like CB and etc electric components are tric components installed cor installed correctly rectly CHECK ABS WHEEL SPEED SENSOR AND Is there foreign particles MAGNETIC ENCODER breakage or damage in the pole piece of ABS wheel speed sensor or magnetic encoder electric compo nents properly ABS diag 49 Diagnostic Procedure with Diagnostic Trouble Code DTC ABS DIAGNOSTICS CHECK SOURCES OF SIGNAL NOISE Check if the noise sources are such as an Ge J w Are noise sources installed antenna installed near the sensor harness CHECK ABSCM amp H U 1 Connect all the connectors 2 Erase th
49. ith Diagnostic Trouble Code DTC ABS DIAGNOSTICS oa J w o WHETHER A WHEEL TURNED FREELY OR Have the wheels been turned JABS is normal Go to step 2 freely when the vehicle is lifted Erase the memory up or drove on a rolling road CHECK OUTPUT OF G SENSOR USING Is the reading indicated on dis Go to step 3 Go to step 8 SUBARU SELECT MONITOR play 1 2 1 2 m s when G 1 Select Current Data Display amp Save in sensor is on a level Subaru Select Monitor 2 Read the Subaru Select Monitor display CHECK OUTPUT OF G SENSOR USING Is the reading indicated on dis Go to step 4 Replace G sen SUBARU SELECT MONITOR play 8 1 11 2 m s when G sor lt Ref to ABS 1 Turn the ignition switch to OFF sensor is inclined forward to 18 G Sensor gt 2 Remove the console box 90 3 Remove the G sensor from vehicle Do not disconnect connector 4 Turn the ignition switch to ON 5 Select Current Data Display amp Save in Subaru Select Monitor 6 Read the Subaru Select Monitor display CHECK OUTPUT OF G SENSOR USING Is the reading indicated on dis Go to step 5 Replace G sen SUBARU SELECT MONITOR play 8 1 11 2 m s when G sor Ref to ABS Read the Subaru Select Monitor display sensor is inclined backward to 18 G Sensor 90 CHECK POOR CONTACT IN CONNECTOR jis there poor contact in con Repair the con Go to step 6 Turn the ignition switch to OFF nector between ABSCM amp H U nector
50. mp H ABSCM amp H U U 2 Run the engine at idle 3 Operate the devices such as headlights air conditioner defogger etc which produce much electrical loading 4 Measure the voltage between ABSCM amp H U connector and chassis ground Connector amp terminal B301 No 18 Chassis ground CHECK GROUND CIRCUIT OF ABSCM amp H U Is the resistance less than 0 5 Go to step 5 Repair the 1 Turn the ignition switch to OFF Q ABSCM amp H U 2 Measure the resistance between ground harness ABSCM amp H U connector and chassis ground Connector amp terminal B301 No 15 Chassis ground CHECK POOR CONTACT IN CONNECTOR jis there poor contact in con Repair the con Go to step 6 nector between generator bat nector tery and ABSCM amp H U CHECK ABSCM amp H U Is the same DTC displayed X Replace the Go to step 7 1 Connect all the connectors ABSOM only Erase the memory Ref to ABS 8 3 Perform the inspection mode REPLACEMENT Readthe DTC ABS Control Mod ule and Hydraulic Control Unit ABSCM amp H U gt CHECK ANY OTHER DTC ON DISPLAY Is any other DTC displayed Inspectthe DIC Temporary poor using List of Diag contact occurs nostic Trouble Code DTC Het to power circuit ABS diag 39 List of Diagnostic Trou ble Code DTC gt ABS diag 67 Diagnostic Procedure with Diagnostic Trouble Code DTC ABS DIAGNOSTICS T DTC C0140 CAN COMMUNICATION MALFUNCTION
51. nitor ABS DIAGNOSTICS 10 CHECK IGNITION SWITCH CHECK BATTERY 1 Turn the ignition switch to OFF 2 Measure the battery voltage CHECK BATTERY TERMINAL CHECK SUBARU SELECT MONITOR COM MUNICATION 1 Turn the ignition switch to ON 2 Using Subaru Select Monitor check whether communication to other system can be executed normally CHECK SUBARU SELECT MONITOR COM MUNICATION 1 Turn the ignition switch to OFF 2 Disconnect the ABSCM amp H U connector 3 Turn the ignition switch to ON 4 Check whether communication to other systems can be executed normally CHECK HARNESS CONNECTOR BETWEEN EACH CONTROL MODULE AND DATA LINK CONNECTOR 1 Turn the ignition switch to OFF 2 Disconnect ABSCM amp H U ECM and TCM 3 Measure the resistance between data link connector and chassis ground Connector amp terminal B40 No 10 Chassis ground CHECK OUTPUT SIGNAL FOR ABSCM amp H U 1 Turn the ignition switch to ON 2 Measure the voltage between ABSCM amp H U and chassis ground Connector amp terminal B40 No 10 Chassis ground CHECK HARNESS CONNECTOR BETWEEN ABSCM amp H U AND DATA LINK CONNEC TOR Measure the resistance between ABSCM amp H U connector and data link connector Connector amp terminal B301 No 7 B40 No 10 CHECK INSTALLATION OF ABSCM amp H U CONNECTOR Turn the ignition switch to OFF CHECK POWER SUPPLY CIRCUIT 1 Turn the ignition switch to ON engine
52. nly once Not come on When pulling the parking brake lever up When releasing the parking brake lever down e When how long does it come on Ignition key position LOCK ACC JON before starting engine START ON after Engine starting engine is running ON after Engine starting engine is at a standstill ABS diag 4 Check List for Interview ABS DIAGNOSTICS d Immediately after turning the ignition to ON d Immediately after turning the ignition to START 1 When accelerating km h MPH I When driving at a constant speed MPH When decelerating km h MPH d When turning to the right Steering angle Steering time Sec d When turning to the left Steering angle Steering time d When operating other electrical parts e Parts name e Operating condition 3 SYMPTOMS ABS operating condi 4 Does not move tion 1 Operates only when applying an abrupt brake Vehicle speed MPH e How to step on brake pedal Sec b Operating noise d Occurs A Does not occur e What kind of noise d Knocking id Gong gong d Bong d Buzz _I Gong gong buzz d Others c Reaction force of brake pedal d Stick d Weak pedal resistance d Strong pedal resistance d Others ABS diag 5 Check List for Interview ABS DIAGNOSTICS Behavior of vehicle a Directional stability cannot be obtained or the steering refuses to work when applying brakes Ll Yes 1 No
53. normal ABS wheel speed sensor on any one of four sensors Stop light switch signal circuit malfunction Faulty G sensor output voltage Abnormal G sensor output voltage Inlet valve malfunction in hydraulic unit Outlet valve malfunc tion in hydraulic unit Inlet valve malfunction in hydraulic unit Outlet valve malfunc tion in hydraulic unit Inlet valve malfunction in hydraulic unit Outlet valve malfunc tion in hydraulic unit Inlet valve malfunction in hydraulic unit Front inlet valve LH Front outlet valve LH Front inlet valve RH Front outlet valve RH Rear inlet valve LH Rear outlet valve LH Rear inlet valve RH Any One of Four ABS Sensors Signal Brake Light Switch G Sensor Failure G Sensor Signal FL Hold Valve mal function FL Pressure Reducing Valve malfunction FR Hold Valve mal function FR Pressure Reducing Valve malfunction RL Hold Valve mal function RL Pressure Reduc ing Valve malfunction RR Hold Valve mal function ABS diag 40 lt Ref to ABS diag 51 DTC C0115 ABS WHEEL SPEED SENSOR SIGNAL MAL FUNCTION IN ONE OF FOUR WHEELS Diagnostic Procedure with Diagnostic Trou ble Code DTC gt lt Ref to ABS diag 74 DTC C0116 FAULTY STOP LIGHT SWITCH Diagnostic Proce dure with Diagnostic Trouble Code DTC gt lt Ref to ABS diag 76 DTC C0118 G SEN SOR OUTPUT VOLTAGE MALFUNCTION Diagnostic Procedure with Diagnostic Trou ble Code DTC g
54. ode DTC Ref to ABS diag 39 LIST List shown of Diagnostic Trouble Code DTC 2 Fix the wrong part 3 Perform clear memory mode Ref to ABS diag 17 CLEAR MEMORY MODE OPERATION Subaru Select Monitor 4 Perform the inspection mode Ref to ABS diag 26 Inspection Mode 5 Read the DTC Ref to ABS diag 15 READ DIAGNOSTIC TROUBLE CODE DTC OPERATION Subaru Select Monitor ABS diag 3 Check List for Interview ABS DIAGNOSTICS 2 Check List for Interview A CHECK Check the following items about the vehicle s state 1 STATE OF ABS WARNING LIGHT ABS warning light d Always comes on d Sometimes d Only once Not come on e When how long does it come on Ignition key position LOCK ACC JON before starting engine START ON after Engine starting engine is running ON after Engine starting engine is at a standstill Timing d Immediately after turning the ignition to ON d Immediately after turning the ignition to START 1 When accelerating om Km h E en d When driving at a constant speed np es J When decelerating L1 When turning to the right Steering es 2 3d Steering me Sec d When turning to the left Steering role Steering time d When operating other electrical parts e Parts name e Operating condition 2 STATE OF BRAKE WARNING LIGHT Brake warning light d Always comes on id Sometimes O
55. onnector amp terminal B301 No 15 Chassis ground CHECK POOR CONTACT IN CONNECTOR jis there poor contact in con Repair the con Go to step 4 nector between generator bat nector tery and ABSCM amp H U CHECK ABSCM amp H U Is the same DTC displayed Replace Go to step 5 1 Connect all the connectors ABSCM amp H U 2 Erase the memory Ref to ABS 6 3 Perform the inspection mode ABS Control Mod 4 Read the DTC ule and Hydraulic Control Unit ABSCM amp H U gt CHECK ANY OTHER DTC ON DISPLAY Is any other DTC displayed Inspectthe DIC Temporary poor using List of Diag contact occurs nostic Trouble Code DTC lt Ref to ABS diag 39 List of Diagnostic Trou ble Code DTC gt ABS diag 58 Diagnostic Procedure with Diagnostic Trouble Code DTC ABS DIAGNOSTICS N DTC C0121 FRONT OUTLET SOLENOID VALVE LH MALFUNCTION IN ABS CONTROL MODULE AND HYDRAULIC CONTROL UNIT ABSCM amp H U NOTE For the diagnostic procedure refer to DIC C0127 Ref to ABS diag 60 DTC C0127 REAR OUTLET SO LENOID VALVE RH MALFUNCTION IN ABS CONTROL MODULE AND HYDRAULIC CONTROL UNIT ABSCM amp H U Diagnostic Procedure with Diagnostic Trouble Code DTC O DTC C0123 FRONT OUTLET SOLENOID VALVE RH MALFUNCTION IN ABS CONTROL MODULE AND HYDRAULIC CONTROL UNIT ABSCM amp H U NOTE For the diagnostic procedure refer to DIC C0127 Ref to ABS diag 60 DTC C0127 REAR OUTLET SO LENOID VALVE RH MALFUNCTION
56. ored Indicate the latest DTC on the Subaru Current Select Monitor display Indicate the latest DTC in previous trou ble on the Subaru Select Monitor display Indicate the latest DTC in second previ Older ous trouble on the Subaru Select Monitor display Indicate the latest DTC in third previous Before 3 trouble on the Subaru Select Monitor dis play 2 READ CURRENT DATA On the Main Menu display screen select the Each System Check and press the YES key On the System Selection Menu display screen select the Brake Control and press the YES key Press the YES key after the ABS is displayed 4 On the Brake Control Diagnosis screen select the Current Data Display Save and then press the YES key 5 On the Data Display Menu screen select the data display style and press the YES key 6 Using a scroll key move the display screen up or down until necessary data is shown e A list of the support data is shown in the following table Display Contents to be monitored Unit of measure BLS Signal Brake ON OFF is displayed ON or OFF Vehicle acceleration detected by analog G sensor is displayed m s m s Valve Relay Signal Valve relay operation signal is displayed ON or OFF ohm ON or OFF ON or OFF ON or OFF ABS OK B Signal OK or NG NOTE For details concerning operation procedure refer to the SUBARU SELECT MONITOR OPERATION MAN UAL ABS diag 16 Subaru Sele
57. play Contents to be monitored Wheel speed detected by the Front ABS FR Wheel wheel speed sensor RH is displayed in km h or MPH Wheel speed detected by the Front ABS FL Wheel wheel speed sensor LH is displayed in km h or MPH Wheel speed detected by the Rear ABS RR Wheel wheel speed sensor RH is displayed in km h or MPH Wheel speed detected by the Rear ABS RL Wheel wheel speed sensor LH is displayed in km h or MPH ABS diag 17 Display Contents to be monitored IG power supply Voltage supplied V to ABSCM amp H U is voltage displayed Vehicle acceleration detected by analog G Sensor MNA G sensor is displayed Motor relay mon ae Motor relay condition is displayed BLS Signal Brake ON OFF is displayed Vehicle speed Vehicle speed calculated by ABS control module is displayed aie CONTO ABS control condition is displayed Power Supply Whether abnormal voltage occurred or Failure not is displayed during malfunction Subaru Select Monitor ABS DIAGNOSTICS B INSPECTION 1 COMMUNICATION FOR INITIALIZING IMPOSSIBLE DETECTING CONDITION Defective harness connector TROUBLE SYMPTOM Communication is impossible between ABS and Subaru Select Monitor WIRING DIAGRAM BATTERY SBF 1 en Se i eoa nA a em T o G Q z gt U IGNITION SWITCH DATA LINK CONNECTOR EN 10 55 c o Z o C f nlejsjajsjel7ie EMMEN ABS00411 ABS diag 18 Subaru Select Mo
58. r and chassis ground Connector amp terminal B301 No 18 Chassis ground B301 No 14 Chassis ground CHECK GROUND CIRCUIT OF ABSCM amp H U Is the resistance less than 0 5 Go to step 3 Repair the 1 Turn the ignition switch to OFF ABSCM amp H U 2 Measure the resistance between ground harness ABSCM amp H U connector and chassis ground Connector amp terminal B301 No 15 Chassis ground CHECK VALVE RELAY IN ABSCM amp H U Is the resistance more than 1 Go to step 4 Replace the Measure the resistance between ABSCM amp H U MQ ABSCM only terminals lt Ref to ABS 8 Terminals REPLACEMENT No 14 No 15 ABS Control Mod ule and Hydraulic Control Unit ABSCM amp H U gt CHECK POOR CONTACT IN CONNECTOR jis there poor contact in con Repair the con Go to step 5 nector between generator bat nector tery and ABSCM amp H U CHECK ABSCM amp H U Is the same DTC displayed X Replace the Go to step 6 1 Connect all the connectors ABSOM only 2 Erase the memory Ref to ABS 8 3 Perform the inspection mode REPLACEMENT 4 Read the DTC ABS Control Mod ule and Hydraulic Control Unit ABSCM amp H U gt CHECK ANY OTHER DTC ON DISPLAY Is any other DTC displayed Inspectthe DIC Temporary poor using List of Diag contact occurs nostic Trouble Code DTC lt Ref to ABS diag 39 List of Diagnostic Trou ble Code DTC gt ABS diag 70 Diagnostic Pro
59. round CHECK HARNESS Is the resistance less than 0 5 Go to step 8 Repair harness 1 Disconnect the connector B301 from Q between ABSCM amp H U ABSCM amp H U and 2 Disconnect the connector i10 from the combination meter combination meter connector 3 Measure the resistance between ABSCM amp H U connector and combination meter connector Connector amp terminal B301 No 8 i10 No 7 8 CHECK POOR CONTACT IN CONNECTOR Is there poor contact Repair the con Go to step 9 CHECK ABSCM Is the resistance less than 0 5 Check the combi Replace the 1 Connect the connector to the ABSCM amp H U Q nation meter ABSCM only 2 Turn the ignition switch to ON Ref to ABS 8 3 Measure the resistance between combina REPLACEMENT tion meter connector and chassis ground ABS Control Mod Connector amp terminal ule and Hydraulic i10 No 7 Chassis ground Control Unit ABSCM amp H U ABS diag 38 11 List of Diagnostic Trouble Code DTC List of Diagnostic Trouble Code DTC ABS DIAGNOSTICS A LIST Content of diagnosis Display C0108 C0109 C0110 ABS wheel speed sen sor malfunction Bro ken wire short ABS wheel speed sen sor malfunction ABS wheel speed sensor abnormal signal Rear ABS wheel speed sensor RH Rear ABS wheel speed sensor LH Front ABS wheel speed sensor RH Front ABS wheel speed sensor LH Abnormal signal of rear ABS wheel speed sensor RH Abnormal
60. signal of rear ABS wheel speed sensor LH Abnormal signal of front ABS wheel speed sensor RH Abnormal signal of front ABS wheel speed sensor LH Power voltage malfunction ABS control module malfunction Rear Right ABS Sen sor Circuit Open or Shorted Battery Rear Left ABS Sensor Circuit Open or Shorted Battery Front Right ABS Sen sor Circuit Open or Shorted Battery Front Left ABS Sensor Circuit Open or Shorted Battery Rear Right ABS Sen sor Signal Rear Left ABS Sensor Signal Front Right ABS Sen sor Signal Front Left ABS Sensor Signal Power Supply Voltage Failure lt Ref to ABS diag 42 DTC C0101 ABS WHEEL SPEED SENSOR RR MALFUNC TION BROKEN WIRE INPUT VOLTAGE TOO HIGH Diagnostic Procedure with Diagnostic Trouble Code DTC gt lt Ref to ABS diag 42 DTC C0102 ABS WHEEL SPEED SENSOR RL MALFUNC TION BROKEN WIRE INPUT VOLTAGE TOO HIGH Diagnostic Procedure with Diagnostic Trouble Code DTC gt lt Ref to ABS diag 42 DTC C0103 ABS WHEEL SPEED SENSOR FR MALFUNC TION BROKEN WIRE INPUT VOLTAGE TOO HIGH Diagnostic Procedure with Diagnostic Trouble Code DTC gt Ref to ABS diag 43 DTC C0104 ABS WHEEL SPEED SENSOR FL MALFUNC TION BROKEN WIRE INPUT VOLTAGE TOO HIGH Diagnostic Procedure with Diagnostic Trouble Code DTC gt Ref to ABS diag 46 DTC C0105 ABS WHEEL SPEED SENSOR RR MALFUNC TION ABS WHEEL SPEED SENSOR ABNORMAL SIGNAL Diagnostic Proce dur
61. t lt Ref to ABS diag 79 DTC C0119 G SEN SOR OUTPUT VOLTAGE MALFUNCTION Diagnostic Procedure with Diagnostic Trou ble Code DTC gt Ref to ABS diag 55 DTC C0120 FRONT INLET SOLENOID VALVE LH MALFUNC TION IN ABS CONTROL MODULE AND HYDRAULIC CONTROL UNIT ABSCM amp H U Diagnostic Procedure with Diagnostic Trouble Code DTC gt lt Ref to ABS diag 59 DTC C0121 FRONT OUTLET SOLENOID VALVE LH MAL FUNCTION IN ABS CONTROL MODULE AND HYDRAULIC CONTROL UNIT ABSCM amp H U Diagnostic Procedure with Diagnostic Trouble Code DTC gt lt Ref to ABS diag 55 DTC C0122 FRONT INLET SOLENOID VALVE RH MALFUNC TION IN ABS CONTROL MODULE AND HYDRAULIC CONTROL UNIT ABSCM amp H U Diagnostic Procedure with Diagnostic Trouble Code DTC gt lt Ref to ABS diag 59 DTC C0123 FRONT OUTLET SOLENOID VALVE RH MAL FUNCTION IN ABS CONTROL MODULE AND HYDRAULIC CONTROL UNIT ABSCM amp H U Diagnostic Procedure with Diagnostic Trouble Code DTC gt lt Ref to ABS diag 55 DTC C0124 REAR INLET SOLENOID VALVE LH MALFUNC TION IN ABS CONTROL MODULE AND HYDRAULIC CONTROL UNIT ABSCM amp H U Diagnostic Procedure with Diagnostic Trouble Code DTC gt lt Ref to ABS diag 59 DTC C0125 REAR OUTLET SOLENOID VALVE LH MAL FUNCTION IN ABS CONTROL MODULE AND HYDRAULIC CONTROL UNIT ABSCM amp H U Diagnostic Procedure with Diagnostic Trouble Code DTC gt lt Ref to ABS diag 56 DTC C0126 REAR INLET SOLENOID V
62. tor switch to ON ABS00114 1 Power switch 6 On the Main Menu display screen select the Each System Check and press the YES key 7 On the System Selection Menu display screen select the Brake Control and press the YES key 8 Press the YES key after the ABS is displayed 9 On the ABS Diagnosis display screen select the DTC Display and press the YES key NOTE For details concerning operation procedure re fer to the SUBARU SELECT MONITOR OPERA TION MANUAL For details concerning DTCs refer to the List of Diagnostic Trouble Code DTC Ref to ABS di ag 39 List of Diagnostic Trouble Code DTC gt e DTCs are displayed up to three in detected or der e lfaparticular DTC is not properly stored in mem ory due to a drop in ABSCM amp H U power supply etc on the occurrence of a problem the DTC which is suffixed with a question mark appears on the Subaru Select Monitor display This shows it may be an unreliable reading 10 If ABS and Subaru Select Monitor cannot com municate check the communication circuit Ref to ABS diag 18 COMMUNICATION FOR INI TIALIZING IMPOSSIBLE INSPECTION Subaru Select Monitor ABS diag 15 Subaru Select Monitor ABS DIAGNOSTICS 11 When DTC is not displayed check the meter circuit or CAN communication circuit lt Ref to ABS diag 21 WITHOUT DIC INSPECTION Subaru Select Monitor Display Contents to be monit
63. y connector 6 Transmission control module 11 Stop light switch 3 Diagnosis connector Used for TCM AT model 12 Master cylinder ABS sequence control 7 Magnetic encoder seal 13 Brake and EBD warning light 4 ABS warning light 8 ABS wheel speed sensor ABS diag 10 Electrical Component Location ABS DIAGNOSTICS ABS00438 ABS00408 ABS00406 ABS diag 11 Control Module I O Signal ABS DIAGNOSTICS 5 Control Module I O Signal A ELECTRICAL SPECIFICATION Lu CARRE 0654000000 000000000000 ABS00409 1 ABS control module and hydraulic control unit ABSCM amp H U con nector NOTE e Terminal numbers in ABSCM amp H U connector are as shown in the figure e ABS warning light is illuminates when the connector is removed from ABSCM amp H U ABS diag 12 Control Module I O Signal ABS DIAGNOSTICS N Terminal Input Output signal Description No i ez e Measured value and measuring conditions Power 16 15 4 5 16 5 V 5 9 16 8 mA Rectangle waveform Power 5 15 4 5 16 5 V IMISS SPES PS Signal 5 9 16 8 mA Rectangle waveform sor L ae g Wheel speed sensor 2 15 4 5 16 5 V 5 9 16 8 mA Rectangle waveform Power 3 15 4 5 16 5 V 5 9 16 8 mA Rectangle waveform CAN communication line 2 5 1 5 V pulse signal CAN communication line 3 5 2 5 V pulse signal Valve relay power supply 1 14 15 10 15V Motor relay power

2004 LEGACY SERVICE MANUAL QUICK REFERENCE INDEX

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