Diagnosis Procedure
WARNING: This page is about a different car, the 2016 Infiniti QX50. 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 M214 6 M36 24 Existed - Check continuity between AV control unit harness connector and ground.
AV control unit Ground Continuity Connector Terminal M214 6 Not existed
Is the inspection result normal?
YES
GO TO STEP 2.
NO
Repair harness or connector.
- CHECK SPIRAL CABLE
Check spiral cable.
Is the inspection result normal?
YES
GO TO STEP 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 M214 6 M214 15 3.3 V
Is the inspection result normal?
YES
GO TO STEP 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 .