Diagnosis Procedure
WARNING: This page is about a different car, the 2011 Nissan 370Z. However, it is still accessible from the selected car via links, so may be relevant.
- CHECK STEERING SWITCH SIGNAL A CIRCUIT
- Turn ignition switch OFF.
- Disconnect audio unit connector and TEL adapter unit connector.
- Check continuity between audio unit harness connector and TEL adapter unit harness connector.CONTINUITY SPECIFICATION
Audio unit TEL adapter unit Continuity Connector Terminal Connector Terminal M81 6 B237 17 Existed - Check continuity between audio unit harness connector and ground.
CONTINUITY SPECIFICATIONAudio unit Ground Continuity Connector Terminal M81 6 Not existed Is the inspection result normal?
YES: Go to 2.
NO: Repair harness or connector.
- CHECK TEL ADAPTER UNIT POWER SUPPLY
Check TEL adapter unit power supply. Refer to "TEL ADAPTER UNIT : DIAGNOSIS PROCEDURE ".
Is the inspection result normal?
YES: Go to 3.
NO: Replace TEL adapter unit. Refer to "REMOVAL AND INSTALLATION ".
- CHECK AUDIO UNIT VOLTAGE
- Connect audio unit connector and TEL adapter unit connector.
- Turn ignition switch ON.
- Check voltage between audio unit harness connector.
VOLTAGE SPECIFICATION(+) (-) Voltage (Approx.) Audio unit Audio unit Connector Terminal Connector Terminal M81 6 M81 15 5.0 V Is the inspection result normal?
YES: Go to 4.
NO: Replace audio 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 ".