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Home >> Infiniti >> 2012 >> G37 IPL, Standard Trans >> Repair and Diagnosis >> External Pages >> Different car >> Section 93 (Audio, Visual And Navigation System) >> BOSE Audio Without Navigation >> DTC/Circuit Diagnosis >> Steering Switch Signal GND Circuit (Steering Switch To Tel Adapter Unit) >> Diagnosis Procedure
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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.
  1. CHECK STEERING SWITCH SIGNAL GND CIRCUIT
    1. Turn ignition switch OFF.
    2. Disconnect TEL adapter unit connector and spiral cable connector.
    3. Check continuity between TEL adapter unit harness connector and spiral cable harness connector.
      CONTINUITY SPECIFICATION

      TEL adapter unit Spiral cable Continuity
      Connector Terminal Connector Terminal
      B237 14 M36 33 Existed
    4. Connect TEL adapter unit connector.

    Is the inspection result normal? 

    YES: Go to 2.

    NO: Repair harness or connector.

  2. CHECK SPIRAL CABLE

    Check spiral cable.

    Is the inspection result normal? 

    YES: Go to 3.

    NO: Replace spiral cable. Refer to "REMOVAL AND INSTALLATION ".

  3. CHECK GROUND CIRCUIT
    1. Connect TEL adapter unit connector.
    2. Check continuity between TEL adapter unit harness connector and ground.
    CONTINUITY SPECIFICATION

    TEL adapter unit Ground Continuity
    Connector Terminal
    B237 14 Existed

    Is the inspection result normal? 

    YES: Go to 4.

    NO: Replace TEL adapter unit. Refer to "REMOVAL AND INSTALLATION ".

  4. CHECK STEERING SWITCH

Check steering switch. Refer to "COMPONENT INSPECTION ".

Is the inspection result normal? 

YES: INSPECTION END

NO: Replace steering switch. Refer to "REMOVAL AND INSTALLATION ".