Diagnosis Procedure
WARNING: This page is about a different car, the 2013 Nissan Armada. However, it is still accessible from the selected car via links, so may be relevant.
Regarding Wiring Diagram information, refer to "WIRING DIAGRAM ".
- CHECK DISPLAY UNIT POWER SUPPLY AND GROUND CIRCUIT
Check display unit power supply and ground circuit. Refer to "DISPLAY UNIT: DIAGNOSIS PROCEDURE ".
Is inspection result OK?
YES: GO TO 2.
NO: Repair malfunctioning parts.
- CHECK CONTINUITY COMMUNICATION CIRCUIT
- Turn ignition switch OFF.
- Disconnect display unit connector M168 and AV control unit connector M165.
- Check continuity between display unit harness connector M168 and AV control unit harness connector M165.
Display unit AV control unit Continuity Connector Terminal Connector Terminal M168 10 M165 61 Yes 9 77 - Check continuity between display unit harness connector M168 and ground.
Display unit - Continuity Connector Terminal M168 10 Ground No 9 Are continuity results as specified?
YES: GO TO 3.
NO: Repair harness or connector.
- CHECK COMMUNICATION SIGNAL
- Connect display unit connector M168 and AV control unit connector M165.
- Turn ignition switch ON.
- Check signal between display unit harness connector M168 terminal 10 and ground.
Connector Terminals Reference Signal (+) (-) M168 10 Ground Are voltage readings as specified?
YES: GO TO 4.
NO: Replace AV control unit. Refer to "REMOVAL AND INSTALLATION ".
- CHECK COMMUNICATION SIGNAL
Check signal between display unit harness connector M168 terminal 9 and ground.
Connector Terminals Reference Signal (+) (-) M168 9 Ground Are voltage readings as specified?
YES: Inspection End.
NO: Replace display unit. Refer to "REMOVAL AND INSTALLATION ".