Diagnosis Procedure
WARNING: This page is about a different car, the 2016 Infiniti Q50. However, it is still accessible from the selected car via links, so may be relevant.
- CHECK COMPOSITE IMAGE SIGNAL
- Turn ignition switch ON.
- Check the signal between display control unit harness connector as per the following condition.
Display control unit Condition Reference value Connector (+) (-) Terminal M101 56 36 An image is displayed
Is the inspection result normal?
YES
Replace display control unit. Refer to REMOVAL AND INSTALLATION .
NO
GO TO STEP 2 .
- CHECK COMPOSITE IMAGE SIGNAL CIRCUIT FOR OPEN
- Turn ignition switch OFF.
- Disconnect display control unit harness connector and AV control unit harness connector.
- Check the continuity between display control unit harness connector and AV control unit harness connector.
Display control unit AV control unit Continuity Connector Terminal Connector Terminal M101 56 M164 38 Existed 36 39
Is the inspection result normal?
YES
GO TO STEP 3 .
NO
Repair or replace malfunctioning parts.
- CHECK COMPOSITE IMAGE SIGNAL CIRCUIT FOR SHORT
Check the continuity between display control unit harness connector and ground.
(+) (-) Continuity Display control unit Connector Terminal M101 56 Ground Not existed Is the inspection result normal?
YES
GO TO STEP 4 .
NO
Repair or replace malfunctioning parts.
- CHECK COMPOSITE IMAGE SIGNAL GROUND CIRCUIT
Check the continuity between display control unit harness connector and AV control unit harness connector.
Display control unit AV control unit Continuity Connector Terminal Connector Terminal M101 55 M164 40 Existed Is the inspection result normal?
YES
Replace AV control unit. Refer to REMOVAL AND INSTALLATION .
NO
Repair or replace malfunctioning parts.