Diagnosis Procedure
WARNING: This page is about a different car, the 2008 Infiniti EX35. However, it is still accessible from the selected car via links, so may be relevant.
- CHECK CONTINUITY DISK EJECT SIGNAL CIRCUIT
- Turn ignition switch OFF.
- Disconnect multifunction switch connector and AV control unit connector.
- Check continuity between multifunction switch harness connector and AV control unit harness connector.TERMINALS CONTINUITY SPECIFICATION
Multifunction switch AV control unit Continuity Connector Terminal Connector Terminal M72 14 M85 103 Existed - Check continuity between multifunction switch harness connector and ground.TERMINALS CONTINUITY SPECIFICATION
Multifunction switch Ground Continuity Connector Terminal M72 14 Not existed
Is the inspection result normal?
YES: GO TO 2.
NO: Repair harness or connector.
- CHECK AV CONTROL UNIT VOLTAGE
- Connect AV control unit connector.
- Turn ignition switch ON.
- Check voltage between AV control unit harness connector and ground.TERMINALS REFERENCE
(+) (-) Reference value (Approx.) AV control unit Connector Terminal M85 103 Ground 3.3 V
Is the inspection result normal?
YES: Replace preset switch.
NO: Replace AV control unit.