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Home >> Infiniti >> 2018 >> Q70 5.6 Luxe, RWD >> Repair and Diagnosis >> Body & Frame >> Door Locks >> Door Lock (DTC/Circuit Diagnosis) (Except Hybrid) >> DTC/Circuit Diagnosis >> Power Supply And Ground Circuit >> Diagnosis Procedure

Diagnosis Procedure

  1. CHECK FUSES 
    1. Turn Ignition Switch OFF.
    2. Check that the following fuses are not blown (open).

      Signal name

      Fuse No.

      Battery power supply

      5(15 A)

      6 (10 A)

    Is the fuse blown (open)?

    YES

    Replace the blown (open) fuse after repairing the affected circuit.

    NO

    GO TO 2.

  2. CHECK POWER SUPPLY CIRCUIT 
    1. Disconnect Trunk Closure Assembly connector.
    2. Check voltage between Trunk Closure Assembly harness connector and ground.

      (+)

      (-)

      Voltage

      (Approx.)

      Trunk Closure Assembly

      Connector

      Terminal

      T14

      4

      Ground

      Battery voltage

      6

    Is the inspection result normal?

    YES

    GO TO 3.

    NO

    Repair harness or connector.

  3. CHECK GROUND CIRCUIT 

    Check continuity between Trunk Closure Assembly harness connector and ground.

    Trunk Closure Assembly

    Ground

    Continuity

    Connector

    Terminal

    T14

    2

    Existed

    3

    Is the inspection result normal?

    YES

    INSPECTION END

    NO

    Repair harness or connector.