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Home >> Infiniti >> 2018 >> Q70 5.6 Luxe, RWD >> Repair and Diagnosis >> Electrical >> Body Electrical >> Interior (Circuit Diagnosis) (Except Hybrid) >> DTC/Circuit Diagnosis >> Power Supply And Ground Circuit >> Diagnosis Procedure

Diagnosis Procedure

  1. CHECK FUSE 

    Check that the following fuse and fusible link are not fusing.

    Signal name

    Fuse No.

    Ignition power supply

    3 (10 A)

    Is the inspection result normal?

    YES

    GO TO 2.

    NO

    Replace the blown fuse after repairing the affected circuit.

  2. CHECK REAR SUNSHADE CONTROL UNIT POWER SUPPLY 
    1. Turn ignition switch OFF.
    2. Disconnect rear sunshade control unit connector.
    3. Turn ignition switch ON.
    4. Check voltage between rear sunshade control unit harness connector and ground.

      (+)

      (-)

      Condition

      Voltage (V)

      (Approx.)

      Rear sunshade control unit

      Connector

      Terminal

      B82

      1

      Ground

      Ignition switch

      ON

      Battery voltage

      OFF

      0

    Is the inspection result normal?

    YES

    GO TO 3.

    NO

    Repair or replace harness.

  3. CHEK REAR SUNSHADE CONTROL UNIT GROUND CIRCUIT 
    1. Turn ignition switch OFF.
    2. Check continuity between rear sunshade control unit harness connector and ground.

    Rear sunshade control unit

    Ground

    Continuity

    Connector

    Terminal

    B82

    2

    Existed

    Is the inspection result normal?

    YES

    INSPECTION END

    NO

    Replace or repair harness.