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Home >> Infiniti >> 2014 >> Q50 Base, AWD >> Repair and Diagnosis >> Electrical >> Gauges >> Meter, Warning Lamp & Indicator (Except Hybrid) >> DTC/Circuit Diagnosis >> Steering Switch Signal B Circuit >> Diagnosis Procedure

Diagnosis Procedure

  1. CHECK STEERING SWITCH SIGNAL B CIRCUIT 
    1. Turn ignition switch OFF.
    2. Disconnect combination meter harness connector and spiral cable harness connector.
    3. Check continuity between combination meter harness connector and spiral cable harness connector.
      Combination meter Spiral cable Continuity
      Connector Terminal Connector Terminal
      M57 23 M87 31 Existed
    4. Check continuity between combination meter harness connector and ground.
      Combination meter Ground Continuity
      Connector Terminal
      M57 23 Not existed

      Is the inspection result normal? 

      YES: GO TO 2.

      NO: Repair harness or connector.

  2. CHECK STEERING SWITCH GROUND CIRCUIT 
    1. Disconnect combination meter harness connector and spiral cable harness connector.
    2. Check continuity between combination meter harness connector and spiral cable harness connector.
      Combination meter Spiral cable Continuity
      Connector Terminal Connector Terminal
      M57 21 M87 33 Existed
    3. Check continuity between combination meter harness connector and ground.
      Combination meter Ground Continuity
      Connector Terminal
      M57 21 Not existed

      Is the inspection result normal? 

      YES: GO TO 3.

      NO: Repair harness or connector.

  3. CHECK SPIRAL CABLE 
    1. Disconnect steering switch connector.
    2. Check continuity between spiral cable harness connectors.
      Spiral cable Continuity
      Connector Terminal Connector Terminal
      M87 31 M301 15 Existed
      33 17

      Is the inspection result normal? 

      YES: GO TO 4.

      NO: Replace spiral cable. 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 ".