1995-99 maxima egi harness wire breakage diagnosis and
Contents
1. 8 Trete Position Sensor ECM Ivo Shielded wire Pos Coolant Temp Sensor to EMONDA 5 P Coolant Temp Sensorto ECMTW SSS TY P0130 02 Sensor Front Bank 1 to ECM 025FR Shielded wire FPoi31 02 SensorFrontBankTio ECM O2SFR Shielded wire FPoi34 02 Sensor Front Bank 1 to ECM O2SFR Shielded wire Poss 02 Sensor Front Bank Tto ECM 2HFR O SCY oz Sensor Front Bank Tt GN Fuse RS Porse 1995 96MY only Engine Ground to ECMQ2H J 8 Pe 1997MY only Engine Ground F18 F19 1o F108 5 Po139 S9CALozSensorRearBitoECM Shielded wire Pom S99CALo2SensorRearBitoECM a P 99CAL Fuse 31 B to 02 Sensor Rear BT m Porso 02 SensorFrontBank21o ECM2SFL Shielded wire Porst 02 Sensor Front Bank 210 ECM O2SFR Shielded wire Porsa 02 SensorFrontBank21o ECM 02SFR Shielded wire Poiss 02 SensorFrontBank21o ECM 2HFL C L Pe 02 Sensor Front Bank 210 GN Fuse O O O e Porso 99CAL 02 Sensor Rear B2toECM Shielded wire P2. Shielded wire _ P Crank Position Sensor to Engine Ground Shielded wire EGRC Solenoid Valve to IGN Fuse w P1401 EGR Temp Sensor to EOMEGRTS mon P _____ EGR Temp Sensor to EOM GND A___ _ B P1445 Evap Canister Purge Volume Control Valve OECMEVAH v P Evap Canister Purge Volume Control Valve to ECMEVP 2 c Evap Canister Purge Volume Control Valve to ECM EVP 3 9 8 Evap Canister Purge Volume Control Valve to ECM EVP 4 LR Evap Canister Purge Volume Control Valve to ECM VB 2 wires R wires P1492 95MYPurgeConroSolemodVave oECM UY P 98MYFuseBetoPumgeContoSoenodVave av P Radiator Fan Relay Colo ECMERFRL I or TRANSMISSION DTC CHART 4 DTC Circuit Wire Color P0705 Inhibitor Switch to ATCU 1 SW PU W PO imbiorSwichto ATCU2SW PB PF imbitorSwichto ATCUDSW Yt o inhibitor Switch to ATCUNSW RG J inhibitor Switch to ATCUPSW RIG F inhibitor Switch to ATCUR SW 9W F inhibitor Switch to IGN Fuse G Pono AT Fluid Temp Sensor lo ECMGND A B AIT Fluid Temp Sensor to ATCU OIL TEMP SENS
3. c P0720 P0740 TCC Solenoid Valve to ATCU LU DUTY SOL a GRO G B P0745 G R P0745 7 14 SYMPTOM CHART 5 Symptom Circuit Wire Color Starter Motor Inoperative Inhibitor Switch to Engine Ground B Engine Stal No Start ECCSRelaytoECMVB RT o Engine Ground to ECM GND C o o O B vo Fuse Be to ECM VB pd ignition Switch to ECM IG eR A C inoperative A CRelaytoECMACRLY BR A C On Off Idle Adjust IACV FICD Solenoid to ECM PWST G Inoperative Inoperative Inoperative Oil Pressure Warning Light Inop Oil Pressure Switch to Gauge Repair Procedure color coded wires only Order the harness service kit P N 24299 0L725 from the Parts Information table on page 14 1 Remove and discard all four clips A through D from the EGI harness see Figure 3 1 You can cut clips C and D Pull but DO NOT CUT clips A and B from their brackets 8 14 7 Sd Fs 2 Cut away the tape and remove the star shaped support braces from the harness see Figure 3 2 Discard these braces 3 Remove the bracket for clip A from the strut tower see Figure 4 TC970609 Figure 3 TC970610 Figure 4 CAUTION Be extremely careful not to cut into any wires within the harness 9 14 4 Cut and unwrap the tape from around the corrugated tube surrounding the harness see Figure 5 Remove and discard the corrugated tube NT 9 o gt UNS um Y 7 eli vov y
4. i MINI Ks Corrugated tube plastic cover LLL y S mn w 5 lf a wire is accidentally cut you must repair it perform steps 10 12 on pages 11 12 6 Unwrap the tape from around the harness that was covered by the corrugated tube 10 14 7 Push the zipper tube near the bulkhead down at least 2 inches to gain access to the PONE Push down zipper tube 2 inches M mD Ep QS wires see Figure 6 Figure 6 8 Remove the tape to expose the hard plastic cover at the harness intersection see Figure 5 9 Visually inspect each wire for breakage within the harness bend that is the color identified in the Diagnosis Procedure on page 2 Typically it is a wire that is near the outside which has been stressed against a larger wire It may be broken inside the insulation A If the broken wire cannot be identified then wiggle each wire of this color in the harness bend while checking the continuity of the identified incident circuit 10 Cut the broken wire 1 1 2 inches rearward from the hard plastic cover at the intersection of the harness see Figure 7 Hard plastic cover TC970613 11 14 11 Cut the broken wire 1 1 2 inches up from the top of the zipper tube see Figure 8 TC970614 Figure 8 12 Replace the broken wire with an eguivalent gauge wire Splice the bulkhead side of the wire first Then lay the wire along the harness up to the harness intersection to d
5. N 24299 0L 725 containing a harness protector and four clips must be installed to prevent additional wire breakage SERVICE PROCEDURE Diagnosis Procedure MIL ON Use this procedure when the vehicle has come in with the MIL on and a DTC stored in Self Diagnosis memory 1 Use CONSULT to display Self Diagnosis Results 2 Compare the DTC displayed by CONSULT to the DTC charts Chart Zs 1 2 3 and 4 beginning on page 5 3 CONSULT can be used in Data Monitor mode as a preliminary check Monitor the operation of the system indicated by the DTC 4 Check for intermittent open or short circuits by aggressively wiggling the EGI harness side to side and up and down at the specified harness bend see Figure 1 while watching the results on CONSULT Data Monitor If the applicable monitored value changes or a DTC sets when you shake the harness then wire damage has been confirmed see NOTE 1 below 5 Use the correct year service manual Trouble Diagnosis for the DTC displayed together with the DTC chart to identify the wire color and pin location for the circuit in question e If the wire color code is listed on the DTC chart perform continuity check A e If the wire is identified as shielded wire on the DTC chart perform continuity checks A and B 6 Perform the indicated continuity check s on the wire s for the circuit in question to isolate the short or open to the incident wire s It may be necessary to shake the harness as ou
6. 25 After completing Continuity Check A move the ohmmeter lead from the component connector to an engine ground Again aggressively wiggle the EGI harness side to side and up and down while you monitor the ohmmeter reading e The resistance value should indicate an open circuit with infinite resistance over range If other than infinite resistance is indicated the wire s shield is shorted to the signal wire and you must replace the harness NOTE If the resistance value indicates an open circuit be sure it is not caused by poor ohmmeter probe or jumper wire connections 4 14 ENGINE DTC CHART 1 DTG C E ETA P Tair Flow Meterto ECMVB ZARA Poros Absolute Pressure Sensor to ECMABSOLUTE PRESS SEN Shielded wire Absolute Pressure Sensorio ECMAVCC gt 2 R 7 J Absolute Pressure Sensor to ECM OND A B not shielded Pono intake Air Temp Sensorto ECMGND A 5 F 5 intake AirTemp Sensorto MIM 5 Pons Coolant Temp Sensor to ECM GND A B5 Fr Coolant Temp Sensorto ECMTW Pozo Throttle Position Sensor ECMAVCG T R O ote Position Sensor ECMIGND A
7. Valve to ECM ISGR2 v F7 TACV AAC Valve to ECMISCHS 7 P IAGV AAC Valve to ECMMSCRE SY Posto Closed Throttle Position Switch io ECMIDLE Yit O Closed Throttle Position Switch io IGN Fuse 6 Prios MAP Baro Switch Solenoid Valve to ECM SOL ow MAP Baro Switch Solenoid Valve to GN Fuse m Puso oca Swirl Control SVtoECM O OR p s 996ALFuse 17 B to Swirl Contro SV BY P1165 99CAL Swirl Control Vacuum Check Swich to ECM Pu FPr320 EngimeGroudto ECKGND B Pa IGN Coll No 1 10 ECMIGNIH Z YR P TIGN Goi No 2 10 ECMIGNE2 ar INO No 3 to ECMIGNIS SSCS Cd SR P IGN Coil No 4 to ECMIGN A I P TG Coit No 5 to ECMIGNHG SSS Pw E INC No 6 10 ECMIGNI6 d SYR 6 14 ENGINE DTC CHART 3 DIC P1335 Crank Position Sensor to EOMREF Shielded wire _ P Grank Position Sensor to EOMREF______ Shielded wire P1336 Crank Position Sensort ECMPPOS
8. dia NISSAN NORTH AMERICA INC TEZUJ Copyright T SERVICE BULLETIN Classification Reference Date EC97 018b NTB98 008b September 16 1999 1995 99 MAXIMA EGI HARNESS WIRE BREAKAGE DIAGNOSIS AND REPAIR PROCEDURE APPLIED VEHICLES 1995 99 Maxima A32 This amended version of NTB98 008a updates the Applied Vehicle date range and corrects and adds information to the DTC Charts Please discard all paper copies of NTB98 008a SERVICE INFORMATION If a 1995 99 Maxima has any of the following incidents e MIL on e Engine no start or e Other system malfunctions such as A C inop A C idle up inop rough idle oil pressure light inop The cause may be wire breakage in the engine control harness where it bends over the right rear of the engine next to the right strut tower see Figure 1 See the symptom charts beginning on page 5 for possible diagnostic trouble codes DTCs or specific symptoms that can cause one or more of these incidents TC970618 T Figure 1 1 14 This repair procedure may apply to your MIL on DTC or symptom if it is specifically listed on the charts Note that for each DTC or symptom listed there can be more than one circuit to check using the following procedure Only incidents and circuits listed on the attached chart are applicable to this bulletin All of the incident possibilities are circuits contained in wiring that pass through the bend in the engine control harness A kit P
9. en circuit is confirmed in a color coded wire perform the repair procedure for color coded wires beginning on page 8 NOTE 2 If you cannot confirm an open or short circuit in the specified wire s as they pass through the indicated harness bend this bulletin does not apply Continuity Check A open circuit check Figure 2 1 2 3 Turn Ignition Key Off and disconnect the vehicle battery Disconnect the ECM and the engine component connectors Connect a jumper wire to the harness side of the appropriate pin of the ECM connector IMPORTANT Be very careful not to spread or otherwise damage the connector pin Route the jumper wire to the engine compartment Connect an ohmmeter between the jumper wire and the harness side of the appropriate pin of the component connector Aggressively wiggle the EGI harness side to side and up and down while you monitor the ohmmeter reading 3 14 e Resistance value should be close to zero ohms If resistance value is high over range or fluctuates an open circuit exists NOTE If resistance is high or over range be sure it is not caused by poor ohmmeter probe or jumper wire connections DISCONNECT Bulkhead p Harness To pin for bend incident wire shake here Check A Jumper wire Figure 2 Check B connect to engine ground Continuity Check B short to ground check shielded wires only 1 2 DISCONNECT Component connector Pin for incident wire TC9706
10. etermine the correct length for the replacement wire see Figure 9 IMPORTANT Make sure the replacement wire finished length is 1 inch longer than the section you cut out of the harness If it is too short or too long it may stress and break again after installation Replacement wire Wrap with Solder new Pia Ton electrical tape connection TC970615 A Solder the bare wire connection 12 14 B Wrap the solder connection with mechanic s Dumm Dumm to make it watertight C Wrap with electrical tape NOTE Perform this procedure to both ends of the replacement wire Only the top splice is illustrated in Figure 9 13 After completing the wire repair tape the exposed harness wire bundle at two intermediate points with electrical tape see Figure 10 TC970616 Figure 10 14 Install the countermeasure corrugated tube around the wire bundle see Figure 11 Tape the ends of the corrugated tube securely to the harness at either side of the bend with electrical tape Corrugated tube MET uiu Mt Y TC970626 Figure 11 13 14 15 Re tape the hard plastic cover at the harness intersection 16 Tape loosely a few turns around the length of the corrugated tube prior to installation of the clips 17 Install the bracket for clip A back on to the strut tower see Figure 3 page 9 18 Install countermeasure clip A and clip B to their respective metal brackets 19 At
11. oet 99CAL 02 SensorRearB2toECM a P 99CAL Fuse 31 B to 02 Sensor RABE m Pon injctorNo TIGECMINMKi SS SCO FPoso2 Injector No 210 ECMINJ 2 O O O e Posos injector No 31o ECMIINJI OR Posos Injector No 5 to ECMiINJS Cd w 5 14 ENGINE DTC CHART 2 DTC P0325 Knock Sensor to ECMKNK Shielded wie P0335 Crank Position Sensor to ECMPOS Shite wie Crank Position Sensorto ECMIVB SSCS OR p lt Crank Position Sensor to Engine Ground Shielded wire Camshaft Position Sensor Phase to ECM PHASE Camshaft Position Sensor Phase to Engine Ground p lt 96 7MY Fuse B to Purge Control Solenoid Valve RY p lt 98MY Purge Volume Control Valve to ECM EVP I ss Vo Y p lt 98MY Purge Volume Control Valve to ECM EVP 2 TG p lt 98MY Purge Volume Control Valve to ECM EVPSS d OB p lt 98MY Purge Volume Control Valve to ECM EVP 4 o OOR O p lt 98MY Purge Volume Control Valve to ECM EVP 5 R 2wires 99MY Purge Volume Control Solenoid Valve to ECM TR Je deni B 99MYECCSRelayto ECM VBterminals P0500 Speed Sensor to Speedometer 2 wires Ee BR W Posos JIACV ARC Valve to ECMB 5 sc AV MAC Valve to ECMISGHT PUG P AV MAC
12. tach clips A and B around the harness 20 Securely tape the clips and the harness 21 Install countermeasure clips C and D to the engine then secure them to the harness see Figure 3 page 9 PARTS INFORMATION DESCRIPTION PART NUMBER QUANTITY Harness Service Kit containing 24299 0L725 1 Harness protector corrugated tube Clip A Cip B Clip C Cip D NOTE You can order the kit only not individual components CLAIMS INFORMATION When applicable standard claims coding applies 14 14
13. tlined in step 4 to verify intermittent conditions Ohmmeter values should not change while shaking the harness see NOTE 1 below e If an open circuit is confirmed in a color coded wire perform the repair procedure beginning on page 8 e lf the open or short is confirmed in a shielded wire replace the entire harness NOTE 1 If you cannot confirm an open or short circuit with CONSULT it is necessary to perform the continuity check outline in steps 5 and 6 above If you cannot confirm an open or short in the specified wire s as they pass through the indicated harness bend with the continuity check this bulletin does not apply 2 14 Diagnosis Procedure Non MIL Symptom Use this procedure if the vehicle symptom is listed on the Vehicle Symptom Chart Chart 5 page 8 1 2 3 Verify the symptom in guestion is listed in Chart 5 Refer to the system wiring diagram in the correct year service manual together with Chart 5 to determine the wire colors and pin location for the circuit in guestion Perform continuity check A on the wire s for the circuit in guestion to isolate the short or open to the incident wire s Check for intermittent open or short circuits by aggressively wiggling the EGI harness side to side and up and down at the specified harness bend and performing the indicated continuity check s If ohmmeter values change while shaking the harness the wire damage has been confirmed see NOTE 2 below e f anop
Download Pdf Manuals
Related Search