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Home >> Infiniti >> 2015 >> QX80 Base, AWD >> Repair and Diagnosis >> Accessories & Equipment >> Gauges & Instrument Panels >> Meter, Warning Lamp & Indicator >> DTC/Circuit Diagnosis >> Trip Computer Switch Signal Circuit >> Diagnosis Procedure

Diagnosis Procedure

  1. CHECK COMBINATION METER INPUT SIGNAL

    1. Turn ignition switch ON.
    2. Measure voltage between the following terminals of the combination meter.
      (+) (-) Condition Voltage
      (Approx.)
      Combination meter Ground
      Connector Terminals
      M34 11 When enter switch is pressed 0 V
      Other than the above 5 V
      12 When select switch is pressed 0 V
      Other than the above 5 V

    Is the inspection result normal?

    YES 

    INSPECTION END

    NO 

    GO TO STEP 2. 

  2. CHECK TRIP COMPUTER SWITCH SIGNAL CIRCUIT

    1. Turn ignition switch OFF.
    2. Disconnect combination meter connector and trip computer switch connector.
    3. Check continuity between combination meter harness connector and trip computer switch harness connector.
      Terminals Continuity
      Combination meter Trip computer switch
      Connector Terminal Connector Terminal
      M34 11 M84 3 Existed
      12 4
    4. Check continuity between combination meter harness connector and ground.
      Combination meter Ground Continuity
      Connector Terminal
      M34 11 Not existed
      12

    Is the inspection result normal?

    YES 

    GO TO STEP 3. 

    NO 

    Repair harness or connector.

  3. CHECK TRIP COMPUTER SWITCH GROUND CIRCUIT

    Check continuity between trip computer switch connector and ground.

    Trip computer switch Ground Continuity
    Connector Terminal
    M84 6 Existed

    Is the inspection result normal?

    YES 

    INSPECTION END

    NO 

    Repair harness or connector.