Transfer: Diagnosis — Nissan Murano Z50 (2002-2008)

Wiring Diagrams and Trouble Diagnosis

When reading wiring diagrams, refer to the following

«HOW TO READ WIRING DIAGRAMS»(ref-233992-S03104937632006052800000) .
«POWER SUPPLY ROUTING CIRCUIT»(ref-234031-S03943856592006052700000) .

When performing trouble diagnosis, refer to the following

«HOW TO FOLLOW TROUBLE DIAGNOSES»(ref-233992-S15339356592006052800000) .
«HOW TO PERFORM EFFICIENT DIAGNOSIS FOR AN ELECTRICAL INCIDENT»(ref-233992-S33147367602006052800000) .

NVH Troubleshooting Chart

Use the chart below to help you find the cause of the symptom. The numbers indicate the order of the inspection. If necessary, repair or replace these parts.

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Scheme 33: NVH Troubleshooting Chart

Trouble Diagnosis Chart for Symptoms

If AWD warning lamp turns ON, perform self-diagnosis. Refer to SELF-DIAG RESULT MODE .

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Scheme 34: Trouble Diagnosis Chart for Symptoms

Note. Light tight-corner braking symptom may occur depending on driving conditions in AUTO mode. This is not malfunction. Heavy tight-corner braking symptom occurs when vehicle is driven in the following conditions: LOCK mode, steering wheel is turned fully to either sides, and accelerator pedal is depressed.

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Scheme 35: Specifications with CONSULT-II

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How to Erase Self-diagnostic Results

Perform applicable inspection of malfunctioning item and then repair or replace.
Start engine and drive at 30 km/h (19 MPH) or more for approx. 1 minute.
Make sure that ABS warning lamp turns OFF. NOTE: Make sure that ABS warning lamp turns OFF by driving for a minute at vehicle speed of 30 km/h (19 MPH) or more after turning ignition switch "OFF", if AWD warning lamp turns ON with system malfunction of "ABS SYSTEM [C1203]". AWD warning lamp may not turn OFF if it is normal unless ignition switch turns OFF once and engine restarts after that.
Turn ignition switch "OFF" to erase memory.
Start engine and select "SELF-DIAG RESULTS" mode for "ALL MODE AWD/4WD" with CONSULT-II.
Touch "ERASE" on CONSULT-II screen to erase DTC memory. CAUTION: If memory cannot be erased, perform applicable diagnosis.
Drive at 30 km/h (19 MPH) or more for approx. 1 minute. Be sure AWD warning lamp is OFF.

DIAGNOSTIC PROCEDURE

Check the following if "CONTROLLER FAILURE [C1201]" is displayed in self-diagnostic results of CONSULT-II.

PERFORM SELF-DIAGNOSIS With CONSULT-II Turn ignition switch "ON". (Do not start engine.) Select "SELF-DIAG RESULTS" mode for "ALL MODE AWD/4WD" with CONSULT-II. Touch "ERASE". Turn ignition switch "OFF" and wait at least 10 seconds. Perform the self-diagnosis again. Is the "CONTROLLER FAILURE [C1201]" displayed? YES: Replace AWD control unit. Refer to «AWD CONTROL UNIT»(ref-234001-S06449632632006052800000) . NO: INSPECTION END

Check the following if "ABS SYSTEM [C1203]" is displayed in self-diagnostic results of CONSULT-II.

CHECK DTC WITH ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT) Perform self-diagnosis with ABS actuator and electric unit (control unit). Refer to «SELF-DIAGNOSIS»(ref-234011-S19720871932006052700000) (without VDC) or «SELF-DIAGNOSIS»(ref-234011-S14297334572006052700000) (with VDC). Is any malfunction detected by self-diagnosis? YES: Check the malfunctioning system. NO: GO TO 2 .
CHECK DTC AFTER DRIVING Turn ignition switch "OFF". Start engine and drive vehicle at 30 km/h (19 MPH) for at least 1 minute. Make sure that ABS warning lamp turns OFF. Erase self-diagnostic results. Refer to «HOW TO ERASE SELF-DIAGNOSTIC RESULTS»(ref-234001-S32253489752006052800000) . Stop vehicle and turn ignition switch "OFF". Turn ignition switch "ON". Perform self-diagnosis. Is the "ABS SYSTEM [C1203]" displayed? YES: GO TO 3 . NO: INSPECTION END
CHECK AWD CONTROL UNIT Check AWD control unit input/output signal. Refer to «AWD CONTROL UNIT INPUT/OUTPUT SIGNAL REFERENCE VALUES»(ref-234001-S37218936782006052800000) . OK or NG OK: GO TO 4 . NG: Check AWD control unit pin terminals for damage or loose connection with harness connector. If any items are damaged, repair or replace damaged parts.
CHECK DTC Perform the self-diagnosis, after driving a vehicle for a while. OK or NG OK: INSPECTION END NG: Perform self-diagnosis with ABS actuator and electric unit (control unit) again. Refer to «SELF-DIAGNOSIS»(ref-234011-S19720871932006052700000) (without VDC) or «SELF-DIAGNOSIS»(ref-234011-S14297334572006052700000) (with VDC).

Check the following if "4WD SOLENOID [C1204]" is displayed in self-diagnostic results of CONSULT-II.

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CHECK AWD SOLENOID SIGNAL With CONSULT-II Start engine. Select "DATA MONITOR" mode for "ALL MODE AWD/4WD" with CONSULT-II. Read out the value of "ETS SOLENOID". OK or NG OK: GO TO 6 . NG: GO TO 2 .
CHECK POWER SUPPLY Turn ignition switch "OFF". Disconnect AWD control unit harness connector. Turn ignition switch "ON". (Do not start engine.) Check voltage between AWD control unit harness connector terminal 9 and ground. CONNECTOR TERMINAL (WIRE COLOR) SPECIFICATION Connector Terminal (Wire color) Voltage (Approx.) E111 9 (G/R) - Ground Battery voltage OK or NG OK: GO TO 3 . NG: Check the following. If any items are damaged, repair or replace damaged parts. 10A fuse [No. 37, located in the fuse and fusible link block] Harness for short or open between battery and AWD control unit harness connector terminal 9
CHECK AWD SOLENOID CIRCUIT Turn ignition switch "OFF". Disconnect AWD control unit harness connector. Check resistance between AWD control unit harness connector terminals 1 and 2. CONNECTOR TERMINAL (WIRE COLOR) SPECIFICATION Connector Terminal (Wire color) Resistance (Approx.) E111 1 (LG) - 2 (L/W) (Ground) 2.45 ohms OK or NG OK: GO TO 6 . NG: GO TO 4 .
CHECK AWD SOLENOID Turn ignition switch "OFF". Disconnect AWD solenoid valve harness connector. Check resistance between AWD solenoid valve harness connector B204 terminals 1 and 2. 1-2: Approx. 2.45 ohms OK or NG OK: GO TO 5 . NG: AWD solenoid is malfunctioning. Replace electric controlled coupling. Refer to «DISASSEMBLY AND ASSEMBLY»(ref-234003-S09029987882006052700000) .
CHECK HARNESS BETWEEN AWD CONTROL UNIT AND AWD SOLENOID Turn ignition switch "OFF". Disconnect AWD control unit harness connector and AWD solenoid valve harness connector. Check continuity between the following terminals. AWD control unit harness connector E111 terminal 1 (LG) and AWD solenoid valve harness connector B204 terminal 1 (LG). AWD control unit harness connector E111 terminal 2 (L/W) and AWD solenoid valve harness connector B204 terminal 2 (L/W). 1 (LG) -1 (LG): Continuity should exist. 2 (L/W) - 2 (L/W): Continuity should exist. Also check harness for short to ground and short to power. OK or NG OK: GO TO 6 . NG: Repair or replace damaged parts.
CHECK AWD CONTROL UNIT Check AWD control unit input/output signal. Refer to «AWD CONTROL UNIT INPUT/OUTPUT SIGNAL REFERENCE VALUES»(ref-234001-S37218936782006052800000) . OK or NG OK: GO TO 7 . NG: Check AWD control unit pin terminals for damage or loose connection with harness connector. If any item is damaged, repair or replace damaged parts.
CHECK DTC Perform the self-diagnosis, after driving a vehicle for a while. OK or NG OK: INSPECTION END NG: Replace AWD control unit.

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Scheme 43: COMPONENT INSPECTION

Turn ignition switch "OFF".
Disconnect AWD solenoid valve harness connector.
Check resistance between AWD solenoid valve harness connector B204 terminals 1 and 2. 1-2: Approx. 2.45 ohms
If NG, replace electric controlled coupling. Refer to «DISASSEMBLY AND ASSEMBLY»(ref-234003-S09029987882006052700000) .

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Scheme 44: CONSULT-II REFERENCE VALUE IN DATA MONITOR MODE

Check the following if "4WD ACTUATOR RLY [C1205]" is displayed in self-diagnostic results of CONSULT-II.

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CHECK AWD SOLENOID SYSTEM Perform self-diagnosis. Refer to «SELF-DIAG RESULT MODE»(ref-234001-S37461624532006052800000) . Is the "4WD SOLENOID [C1204]" displayed? YES: Perform trouble diagnosis for AWD solenoid. Refer to «AWD SOLENOID»(ref-234001-S14832377652006052800000) . NO: GO TO 2 .
CHECK AWD ACTUATOR RELAY SIGNAL With CONSULT-II Turn ignition switch "ON". (Do not start engine.) Select "DATA MONITOR" mode for "ALL MODE AWD/4WD" with CONSULT-II. Start engine and read out ON/OFF signal of "ETS ACTUATOR". OK or NG OK: GO TO 4 . NG: GO TO 3 .
CHECK AWD CONTROL UNIT Check AWD control unit input/output signal. Refer to «AWD CONTROL UNIT INPUT/OUTPUT SIGNAL REFERENCE VALUES»(ref-234001-S37218936782006052800000) . OK or NG OK: GO TO 4 . NG: Check AWD control unit pin terminals for damage or loose connection with harness connector. If any item is damaged, repair or replace damaged parts.
CHECK DTC Perform the self-diagnosis, after driving a vehicle for a while. OK or NG OK: INSPECTION END NG: Replace AWD control unit.

Check the following if "ENGINE SIGNAL 1 [C1210]" is displayed in self-diagnosis results of CONSULT-II.

CHECK DTC WITH ECM Perform self-diagnosis with ECM. Refer to «EMISSION-RELATED DIAGNOSTIC INFORMATION»(ref-233996-S08484186682006052800000) . Is any malfunction detected by self-diagnosis? YES: Check the malfunctioning system. NO: GO TO 2 .
CHECK AWD CONTROL UNIT Check AWD control unit input/output signal. Refer to «AWD CONTROL UNIT INPUT/OUTPUT SIGNAL REFERENCE VALUES»(ref-234001-S37218936782006052800000) . OK or NG OK: GO TO 3 . NG: Check AWD control unit pin terminals for damage or loose connection with harness connector. If any item is damaged, repair or replace damaged parts.
CHECK DTC Perform the self-diagnosis, after driving a vehicle for a while. OK or NG OK: INSPECTION END NG: Perform self-diagnosis with ECM again. Refer to «EMISSION-RELATED DIAGNOSTIC INFORMATION»(ref-233996-S08484186682006052800000) .

Check the following if "CAN COMM CIRCUIT [U1000]" is detected in self-diagnostic results of CONSULT-II

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CHECK CAN COMMUNICATION CIRCUIT With CONSULT-II Turn ignition switch "ON" and start engine. Select "SELF-DIAG RESULTS" mode for "ALL MODE AWD/4WD" with in CONSULT-II. Perform the self-diagnosis. Is the "CAN COMM CIRCUIT [U1000]" displayed? YES: Print out CONSULT-II screen and go to «PRECAUTIONS WHEN USING CONSULT-II»(ref-234028-S32550771332006052700000) . NO: INSPECTION END

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Scheme 48: DIAGNOSTIC PROCEDURE

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CHECK SYSTEM FOR CAN COMMUNICATION LINE Perform self-diagnosis. Refer to «SELF-DIAG RESULT MODE»(ref-234001-S37461624532006052800000) . Is the "CAN COMM CIRCUIT [U1000]" displayed? YES: Perform trouble diagnosis for CAN communication line. Refer to «CAN COMMUNICATION LINE»(ref-234001-S12450888122006052800000) . NO: GO TO 2 .
CHECK AWD CONTROL UNIT POWER SUPPLY CIRCUIT Turn ignition switch "OFF". Disconnect AWD control unit harness connector. Turn ignition switch "ON". (Do not start engine.) Check voltage between AWD control unit harness connector terminals and ground. Turn ignition switch "OFF". Check voltage between AWD control unit harness connector terminals and ground. OK or NG OK: GO TO 3 . NG: Check the following. If any items are damaged, repair or replace damaged parts. 10A fuse [No. 37, located in the fuse and fusible link block or No. 82, located in the IPDM E/R] Harness for short or open between battery and AWD control unit harness connector terminal 9 Harness for short or open between ignition switch and AWD control unit harness connector terminal 7 Ignition switch. Refer to «POWER SUPPLY ROUTING CIRCUIT»(ref-234031-S03943856592006052700000) .
CHECK AWD CONTROL UNIT GROUND CIRCUIT Turn ignition switch "OFF". Disconnect AWD control unit harness connector. Check continuity between AWD control unit harness connector E111 terminals 10 (B), 11 (B) and ground. Continuity should exist. Also check harness for short to ground and short to power. OK or NG OK: GO TO 4 . NG: Repair open circuit or short to ground or short to power in harness or connectors.
CHECK AWD CONTROL UNIT Check AWD control unit input/output signal. Refer to «AWD CONTROL UNIT INPUT/OUTPUT SIGNAL REFERENCE VALUES»(ref-234001-S37218936782006052800000) . OK or NG OK: GO TO 5 . NG: Check AWD control unit pin terminals for damage or loose connection with harness connector. If any item is damaged, repair or replace damaged parts.
CHECK INPUT SIGNAL WITH UNIFIED METER AND A/C AMP. With CONSULT-II Turn ignition switch "ON". Select "DATA MONITOR" mode for "METER A/C AMP" with CONSULT-II. Operate AWD lock switch and read out monitor "4WD LOCK SW". OK or NG OK: GO TO 6 . NG: Perform trouble diagnosis for AWD lock switch. Refer to «AWD LOCK SWITCH»(ref-234001-S18481264092006052800000) .
CHECK OUTPUT SIGNAL WITH UNIFIED METER AND A/C AMP. With CONSULT-II Start engine. Select "DATA MONITOR" mode for "METER A/C AMP" with CONSULT-II. Operate AWD lock switch and read out monitor "4WD LOCK IND". OK or NG OK: GO TO 7 . NG: Perform trouble diagnosis for combination meter. Refer to «TROUBLE DIAGNOSIS»(ref-234025-S40890035972006052700000) .
SYMPTOM CHECK Check again. OK or NG OK: INSPECTION END NG: Replace unified meter control unit assembly. Refer to «DISASSEMBLY AND ASSEMBLY OF COMBINATION METER»(ref-234025-S22027343522006052700000) .

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Scheme 57: DIAGNOSTIC PROCEDURE

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CHECK SYSTEM FOR CAN COMMUNICATION LINE Perform self-diagnosis. Refer to «SELF-DIAG RESULT MODE»(ref-234001-S37461624532006052800000) . Is the "CAN COMM CIRCUIT [U1000]" displayed? YES: Perform trouble diagnosis for CAN communication line. Refer to «CAN COMMUNICATION LINE»(ref-234001-S12450888122006052800000) . NO: GO TO 2 .
CHECK AWD CONTROL UNIT Check AWD control unit input/output signal. Refer to «AWD CONTROL UNIT INPUT/OUTPUT SIGNAL REFERENCE VALUES»(ref-234001-S37218936782006052800000) . OK or NG OK: GO TO 3 . NG: Check AWD control unit pin terminals for damage or loose connection with harness connector. If any item is damaged, repair or replace damaged parts.
CHECK OUTPUT SIGNAL WITH UNIFIED METER AND A/C AMP. With CONSULT-II Turn ignition switch "ON". (Do not start engine.) Select "DATA MONITOR" mode for "METER A/C AMP" with CONSULT-II. Start the engine, and then make sure that "4WD W/L" display turns from "ON" to "OFF" after several seconds. OK or NG OK: GO TO 4 . NG: Perform trouble diagnosis for combination meter. Refer to «TROUBLE DIAGNOSIS»(ref-234025-S40890035972006052700000) .
SYMPTOM CHECK Check again. OK or NG OK: INSPECTION END NG: Replace unified meter control unit assembly. Refer to «DISASSEMBLY AND ASSEMBLY OF COMBINATION METER»(ref-234025-S22027343522006052700000) .

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Scheme 59: DIAGNOSTIC PROCEDURE

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CHECK SELF-DIAGNOSTIC RESULTS Perform self-diagnosis. Refer to «SELF-DIAG RESULT MODE»(ref-234001-S37461624532006052800000) . Is any malfunction detected by self-diagnosis? YES: Check the malfunctioning system. NO: GO TO 2 .
CHECK AWD CONTROL UNIT POWER SUPPLY CIRCUIT Turn ignition switch "OFF". Disconnect AWD control unit harness connector. Turn ignition switch "ON". (Do not start engine.) Check voltage between AWD control unit harness connector terminals and ground. Turn ignition switch "OFF". Check voltage between AWD control unit harness connector terminals and ground. OK or NG OK: GO TO 3 . NG: Check the following. If any item is damaged, repair or replace damaged parts. 10A fuse [No. 37, located in the fuse and fusible link block or No. 82, located in the IPDM E/R] Harness for short or open between battery and AWD control unit harness connector terminal 9 Harness for short or open between ignition switch and AWD control unit harness connector terminal 7 Ignition switch. Refer to «POWER SUPPLY ROUTING CIRCUIT»(ref-234031-S03943856592006052700000) .
CHECK AWD CONTROL UNIT GROUND CIRCUIT Turn ignition switch "OFF". Disconnect AWD control unit harness connector. Check continuity between AWD control unit harness connector E111 terminals 10 (B), 11 (B) and ground. Continuity should exist. Also check harness for short to ground and short to power. OK or NG OK: GO TO 4 . NG: Repair open circuit or short to ground or short to power in harness or connectors.
CHECK AWD CONTROL UNIT Check AWD control unit input/output signal. Refer to «AWD CONTROL UNIT INPUT/OUTPUT SIGNAL REFERENCE VALUES»(ref-234001-S37218936782006052800000) . OK or NG OK: GO TO 5 . NG: Check AWD control unit pin terminals for damage or loose connection with harness connector. If any item is damaged, repair or replace damaged parts.
CHECK OUTPUT SIGNAL WITH UNIFIED METER AND A/C AMP. With CONSULT-II Turn ignition switch "ON". (Do not start engine.) Select "DATA MONITOR" mode for "METER A/C AMP" with CONSULT-II. Start the engine, and then make sure that "4WD W/L" display turns from "ON" to "OFF" after several seconds. OK or NG OK: GO TO 6 . NG: Perform trouble diagnosis for combination meter. Refer to «TROUBLE DIAGNOSIS»(ref-234025-S40890035972006052700000) .
SYMPTOM CHECK Check again. OK or NG OK: INSPECTION END NG: Replace unified meter control unit assembly. Refer to «DISASSEMBLY AND ASSEMBLY OF COMBINATION METER»(ref-234025-S22027343522006052700000) .

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Scheme 66: DIAGNOSTIC PROCEDURE

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CHECK AWD WARNING LAMP Confirm AWD warning lamp. Does AWD warning lamp turn on? YES: Go to «AWD WARNING LAMP DOES NOT TURN OFF SEVERAL SECONDS AFTER ENGINE STARTED»(ref-234001-S19345460752006052800000) . NO: GO TO 2 .
CHECK SYSTEM FOR AWD LOCK SWITCH Perform trouble diagnosis for AWD lock switch system. Refer to «AWD LOCK SWITCH»(ref-234001-S18481264092006052800000) . OK or NG OK: GO TO 3 . NG: Repair or replace damaged parts.
CHECK CONTROL STATUS OF AWD With CONSULT-II Start engine. Select "DATA MONITOR" mode for "ALL MODE AWD/4WD" with CONSULT-II. Check AWD LOCK indicator lamp ON when operating AWD lock switch, and then readout monitor "4WD MODE MON". OK or NG OK: GO TO 4 . NG: GO TO 5 .
CHECK OUTPUT SIGNAL WITH UNIFIED METER AND A/C AMP. With CONSULT-II Start engine. Select "DATA MONITOR" mode for "METER A/C AMP" with CONSULT-II. Operate AWD lock switch and read out monitor "4WD LOCK IND". OK or NG OK: GO TO 5 . NG: Perform trouble diagnosis for combination meter. Refer to «TROUBLE DIAGNOSIS»(ref-234025-S40890035972006052700000) ".
CHECK AWD CONTROL UNIT Check AWD control unit input/output signal. Refer to «AWD CONTROL UNIT INPUT/OUTPUT SIGNAL REFERENCE VALUES»(ref-234001-S37218936782006052800000) . OK or NG OK: GO TO 6 . NG: Check AWD control unit pin terminals for damage or loose connection with harness connector. If any items are damaged, repair or replace damaged parts.
SYMPTOM CHECK Check again. OK or NG OK: INSPECTION END NG: Replace unified meter control unit assembly. Refer to «DISASSEMBLY AND ASSEMBLY OF COMBINATION METER»(ref-234025-S22027343522006052700000) .

Heavy Tight-corner Braking Symptom Occurs When The Vehicle Is Driven in AUTO Mode and The Steering Wheel Is Turned Fully to Either Side after The Engine Is Started

CHECK SYSTEM FOR CAN COMMUNICATION LINE Perform self-diagnosis. Refer to «SELF-DIAG RESULT MODE»(ref-234001-S37461624532006052800000) . Is the "CAN COMM CIRCUIT [U1000]" displayed? YES: Perform trouble diagnosis for CAN communication line. Refer to «CAN COMMUNICATION LINE»(ref-234001-S12450888122006052800000) . NO: GO TO 2 .
CHECK SYSTEM FOR AWD LOCK SWITCH Perform trouble diagnosis for AWD lock switch system. Refer to «AWD LOCK SWITCH»(ref-234001-S18481264092006052800000) . OK or NG OK: GO TO 3 . NG: Repair or replace damaged parts.
CHECK ACCELERATOR PEDAL POSITION SIGNAL CIRCUIT Perform self-diagnosis for ECM. Refer to «EMISSION-RELATED DIAGNOSTIC INFORMATION»(ref-233996-S08484186682006052800000) . Is any malfunction detected by self-diagnosis? YES: Check the malfunctioning system. NO: GO TO 4 .
CHECK SYSTEM FOR AWD SOLENOID Perform trouble diagnosis for AWD solenoid system. Refer to «AWD SOLENOID»(ref-234001-S14832377652006052800000) . OK or NG OK: GO TO 5 . NG: Repair or replace damaged parts.
CHECK ELECTRIC CONTROLLED COUPLING Turn ignition switch "OFF". Set the selector lever to "N" (neutral) position and disengage the parking brake. Lift up the vehicle. Rotate the propeller shaft by hand. Hold rear wheel of right and left lightly. Does rear wheel rotate? YES: Replace electric controlled coupling for mechanical malfunction (clutch sticking etc.). Refer to «DISASSEMBLY AND ASSEMBLY»(ref-234003-S09029987882006052700000) . NO: GO TO 6 .
SYMPTOM CHECK Check again. OK or NG OK: INSPECTION END NG: GO TO 7 .
CHECK AWD CONTROL UNIT Check AWD control unit input/output signals. Refer to «AWD CONTROL UNIT INPUT/OUTPUT SIGNAL REFERENCE VALUES»(ref-234001-S37218936782006052800000) . OK or NG OK: INSPECTION END NG: Check AWD control unit pin terminals for damage or loose connection with harness connector. If any items are damaged, repair or replace damaged parts.

Transfer: Diagnosis Nissan Murano Z50