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 STEERING SWITCH SIGNAL A CIRCUIT
- Disconnect AV control unit connector and spiral cable connector.
- Check continuity between AV control unit harness connector and spiral cable harness connector.
AV control unit Spiral cable Continuity Connector Terminal Connector Terminal M208 6 M36 24 Existed - Check continuity between AV control unit harness connector and ground.
AV control unit Ground Continuity Connector Terminal M208 6 Not existed Is the inspection result normal?
YES: GO TO 2.
NO: Repair harness or connector.
- CHECK SPIRAL CABLE
Check spiral cable.
Is the inspection result normal?
YES: GO TO 3.
NO: Replace spiral cable.
- CHECK AV CONTROL UNIT VOLTAGE
- Connect AV control unit connector and spiral cable connector.
- Turn ignition switch ON.
- Check voltage between AV control unit harness connector.
(+) (-) Voltage (Approx.) AV control unit AV control unit Connector Terminal Connector Terminal M208 6 M208 15 5.0 V Is the inspection result normal?
YES: GO TO 4.
NO: Replace AV control unit. Refer to "REMOVAL AND INSTALLATION "
- CHECK STEERING SWITCH
- Turn ignition switch OFF.
- Check steering switch. Refer to
"COMPONENT INSPECTION ".
Is the inspection result normal?
YES: INSPECTION END
NO: Replace steering switch. Refer to "REMOVAL AND INSTALLATION ".