Diagnosis Procedure
WARNING: This page is about a different car, the 2012 Infiniti QX56. However, it is still accessible from the selected car via links, so may be relevant.
- CHECK CONTINUITY RGB DIGITAL IMAGE SIGNAL CIRCUIT
- Turn ignition switch OFF.
- Disconnect front display unit connector and AV control unit connector.
- Check continuity between front display unit harness connector and AV control unit harness connector.
Front display unit AV control unit Continuity Connector Terminals Connector Terminals M322 27 M321 157 Existed 28 158 - Check continuity between front display unit harness connector and ground.
Front display unit Ground Continuity Connector Terminals M322 27 Not existed 28 Is the inspection result normal?
YES: GO TO 2.
NO: Repair harness or connector.
- CHECK RGB DIGITAL IMAGE SIGNAL
- Connect AV control unit connector.
- Turn ignition switch ON.
- Check signal between front display unit harness connector and ground.
(+) (-) Condition Voltage (Approx.) Front display unit Connector Terminal M322 27 Ground - 1.3 V 28 Is the inspection result normal?
YES: Replace front display unit. Refer to "REMOVAL AND INSTALLATION ".
NO: Replace AV control unit. Refer to "REMOVAL AND INSTALLATION ".