LEMON Manuals: Even more car manuals for everyone
Home >> Infiniti >> 2012 >> QX56 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 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 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.