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Home >> Infiniti >> 2016 >> QX80 Limited >> Repair and Diagnosis >> Electrical >> Motors, Switches, Relays >> Power Outlet (Ac 120 V Outlet) >> Circuit Diagnosis >> Power Supply And Ground Circuit >> Diagnosis Procedure

Diagnosis Procedure

  1. CHECK FUSE

    Check that the following fuse is not blown.

    Signal name Fuse No.
    Battery power supply 79

    Is the fuse fusing?

    YES 

    Replace the blown fuse after repairing the affected circuit if a fuse is blown.

    NO 

    GO TO STEP 2. 

  2. CHECK INVERTER UNIT POWER SUPPLY CIRCUIT

    Check voltage between inverter unit harness connector and ground.

    Terminal Condition Voltage
    (Approx.)
    (+) (-)
    Inverter unit Ground Ignition switch
    Connector Terminal
    M143 4 OFF Battery voltage

    Is the inspection result normal?

    YES 

    GO TO STEP 3. 

    NO 

    Repair or replace the inverter unit power supply circuit.

  3. CHECK INVERTER UNIT GROUND CIRCUIT

    1. Turn the ignition switch OFF.
    2. Disconnect the inverter unit connector.
    3. Check for continuity between inverter unit harness connector and ground.
      Inverter unit Ground Continuity
      Connector Terminal
      M143 8 Existed

    Is the inspection result normal?

    YES 

    INSPECTION END

    NO 

    Repair or replace the inverter unit ground circuit.

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