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Home >> Infiniti >> 2024 >> QX55 Essential >> Repair and Diagnosis >> Electrical >> Gauges >> Meter, Warning Lamp And Indicator (DTC/Circuit Diagnosis) >> DTC/Circuit Diagnosis >> B230A-11 Combination Meter >> DTC Diagnosis Procedure

DTC Diagnosis Procedure

  1. CHECK ILLUMINATION CONTROL CIRCUIT SHORT TO VOLTAGE 
      1. Ignition switch OFF.
      2. Disconnect harness connector of the combination meter and all the connectors connected to illumination control signal circuit.
      3. Ignition switch ON.
      4. Check for short voltage between the combination meter harness connector and ground.
        (+) (-) Voltage(Approx.)
        Combination meter
        Connector Terminal
        M77 48 Ground 0 V

    Is the inspection result normal?

    YES>>

    GO TO 2.

    NO>>

    Repair or replace harness or connector.

  2. CHECK ILLUMINATION CONTROL CIRCUIT SHORT TO GROUND 
      1. Ignition switch OFF.
      2. Check continuity between combination meter harness connector and ground.
        Combination meter - Continuity
        Connector Terminal
        M77 48 Ground No

    Is the inspection result normal?

    YES>>

    Replace combination meter. Refer to Removal and Installation .

    NO>>

    Repair or replace harness or connector.