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Home >> Infiniti >> 2021 >> QX80 Premium Select, AWD >> Repair and Diagnosis >> Electrical >> Gauges >> Meter, Warning Lamp & Indicator (Diagnostics) >> Component Parts /Circuit Diagnosis >> Steering Switch Signal B Circuit >> Diagnosis Procedure

Diagnosis Procedure

  1. CHECK STEERING SWITCH SIGNAL B 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

      M343

      24

      M33

      31

      Existed

    3. Check continuity between combination meter harness connector and ground.

      Combination meter

      Ground

      Continuity

      Connector

      Terminal

      M343

      24

      Not existed

    Is the inspection result normal?

    YES

    GO TO 2.

    NO

    Repair harness or connector.

  2. CHECK STEERING SWITCH SIGNAL GROUND CIRCUIT 
    1. Check continuity between combination meter harness connector and spiral cable harness connector.

      Combination meter

      Spiral cable

      Continuity

      Connector

      Terminal

      Connector

      Terminal

      M343

      3

      M33

      33

      Existed

    2. Check continuity between combination meter harness connector and ground.

      Combination meter

      Ground

      Continuity

      Connector

      Terminal

      M343

      3

      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

      Terminal

      24

      14

      Existed

      31

      15

    Is the inspection result normal?

    YES

    GO TO 4.

    NO

    Replace spiral cable. Refer to SPIRAL CABLE : Removal & Installation .

  4. CHECK STEERING SWITCH 
    1. Turn ignition switch OFF.
    2. Check steering switch. Refer to Component Inspection .

    Is the inspection result normal?

    YES

    INSPECTION END

    NO

    Replace steering switch. Refer to STEERING SWITCH : Removal & Installation .