Diagnosis Procedure
WARNING: This page is about a different car, the 2013 Infiniti M56 and 2013 Infiniti M37. 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 display unit connector and AV control unit connector.
- Check continuity between display unit harness connector and AV control unit harness connector.
Display unit AV control unit Continuity Connector Terminals Connector Terminals M397 27 M396 157 Existed 28 158 - Check continuity between display unit harness connector and ground.
Display unit Ground Continuity Connector Terminals M397 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 display unit harness connector and ground.
(+) (-) Condition Voltage (Approx.) Display unit Connector Terminals M397 27 Ground - 1.3 V 28 Is the inspection result normal?
YES: Replace display unit. Refer to "REMOVAL AND INSTALLATION ".
NO: Replace AV control unit. Refer to "REMOVAL AND INSTALLATION ".