Diagnosis Procedure
WARNING: This page is about a different car, the 2016 Infiniti QX60. However, it is still accessible from the selected car via links, so may be relevant.
Regarding Wiring Diagram information, refer to WIRING DIAGRAM .
- CHECK AUX SOUND SIGNAL CIRCUIT CONTINUITY
- Turn ignition OFF.
- Disconnect AV control unit connector M123 and front auxiliary input jacks connector.
- Check continuity between AV control unit connector M123 and front auxiliary input jacks connector.
AV control unit Front auxiliary input jacks Continuity Connector Terminal Connector Terminal M123 24 M205 3 Yes 38 1 - Check continuity between AV control unit connector M123 and ground.
AV control unit Ground Continuity Connector Terminal M123 24 - No 38
Is inspection result normal?
YES
GO TO STEP 2 .
NO
Repair or replace harness or connectors.
- CHECK AUX SOUND SIGNAL GROUND CIRCUIT CONTINUITY
Check continuity between AV control unit connector M123 and front auxiliary input jacks connector.
AV control unit Front auxiliary input jacks Continuity Connector Terminal Connector Terminal M123 39 M205 2 Yes Is inspection result normal?
YES
GO TO STEP 3 .
NO
Repair or replace harness or connectors.
- CHECK AUX SOUND SIGNAL
- Connect AV control unit connector M123 and front auxiliary input jacks connector.
- Turn ignition switch to ACC.
- Select AUX mode.
- Check signals between AV control unit connector M123 and ground.
AV control unit connector M123 Condition Reference value (+) (-) Terminal Terminal 24 39 AUX mode selected 38 39
Is the inspection result normal?
YES
Replace AV control unit. Refer to REMOVAL AND INSTALLATION .
NO
Replace front auxiliary input jacks. Refer to REMOVAL AND INSTALLATION .