DISPLAY UNIT : Diagnosis Procedure
WARNING: This page is about a different car, the 2011 Nissan Murano. However, it is still accessible from the selected car via links, so may be relevant.
- CHECK POWER SUPPLY CIRCUIT (DISPLAY SIDE)
Check voltage between display unit harness connector and ground.
VOLTAGE REFERENCE CHARTSignal name Connector No. Terminal No. Ignition switch position Value (Approx.) Inverter VCC M194 2 ACC 9.0 V Signal VCC 3 Is the inspection result normal?
YES: GO TO 4.
NO: GO TO 2.
- CHECK POWER SUPPLY CIRCUIT (CONTINUITY)
- Turn ignition switch OFF.
- Disconnect AV control unit connector and display unit connector.
- Check continuity between AV control unit harness connector and display unit harness connector.CONTINUITY REFERENCE CHART
AV control unit Display unit Continuity Connector Terminal Connector Terminal M172 48 M194 2 Existed 36 3 Existed - Check continuity between display unit harness connector and ground.CONTINUITY REFERENCE CHART
Display unit Ground Continuity Connector Terminal M194 2 Not existed 3 Not existed Is the inspection result normal?
YES: GO TO 3.
NO: Repair harness or connector.
- CHECK POWER SUPPLY CIRCUIT (AV CONTROL UNIT SIDE)
- Connect the AV control unit harness connector.
- Turn ignition switch ACC.
- Check voltage between AV control unit harness connector and ground.VOLTAGE REFERENCE CHART
(+) (-) Ignition switch position Voltage (Approx.) AV control unit Connector Terminal M172 48 Ground ACC 9.0 V 36 9.0 V Is the inspection result normal?
YES: INSPECTION END
NO: Replace AV control unit. Refer to "EXPLODED VIEW ".
- CHECK GROUND CIRCUIT
- Turn ignition switch OFF.
- Disconnect display unit connector.
- Check continuity between display unit harness connector and ground.CONTINUITY REFERENCE CHART
Signal name Connector No. Terminal No. Ignition switch position Continuity Ground M194 1 OFF Existed Is the inspection result normal?
YES: INSPECTION END
NO: Repair harness or connector.