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Home >> Infiniti >> 2017 >> QX70 AWD >> Repair and Diagnosis >> Accessories & Equipment >> Gauges & Instrument Panels >> Meter, Warning Lamp & Indicator (DTC/Circuit Diagnosis) >> DTC/Circuit Diagnosis >> Power Supply And Ground Circuit >> Combination Meter >> Diagnosis Procedure

Diagnosis Procedure

  1. CHECK FUSE

    Check for blown fuses.

    Power Source Fuse No.
    Battery 6
    Ignition Switch ON or START 4

    Is the inspection result normal?

    YES 

    GO TO STEP 2. 

    NO 

    Be sure to eliminate cause of malfunction before installing new fuse.

  2. CHECK POWER SUPPLY CIRCUIT

    Check voltage between Combination Meter Harness Connector and ground.

    Terminals Ignition Switch position Value (Approx.)
    (+) (-)
    Combination Meter Terminal Signal name
    M53 1 Battery power supply Ground OFF Battery voltage
    21 Ignition signal ON Battery voltage

    Is the inspection result normal?

    YES 

    GO TO STEP 3. 

    NO 

    Check harness between Combination Meter and fuse.

  3. CHECK GROUND CIRCUIT

    1. Turn Ignition Switch OFF.
    2. Disconnect Combination Meter connector.
    3. Check continuity between Combination Meter Harness Connector and ground.
      Combination Meter Ground Continuity
      Connector Terminal
      M53 5 Existed
      15 Existed

    Is the inspection result normal?

    YES 

    INSPECTION END

    NO 

    Repair harness or connector.