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Home >> Infiniti >> 2018 >> QX30 Base >> Repair and Diagnosis >> Body & Frame >> Windows >> Power Window Control System >> Symptom Diagnosis >> Keyless Power Window Down Does Not Operate >> Diagnosis Procedure >> Rear
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Diagnosis Procedure: Rear

  1. CHECK DTC WITH INTELLIGENT KEY UNIT 

    Check that DTC is not detected with intelligent key unit. Refer to DTC Index

    Is DTC detected?

    YES

    Perform diagnosis procedure on the detected DTC. Refer to DTC Index .

    NO

    GO TO 2.

  2. CHECK DOOR LOCK OPERATION 

    Check door lock/unlock using Intelligent Key.

    Does door lock/unlock using Intelligent Key?

    YES

    GO TO 3

    NO

    Refer to DTC Index .

  3. CHECK POWER WINDOW MOTOR 

    Check rear power window motor. Refer to Component Function Check (rear LH) or Component Function Check (rear RH).

    Is the inspection result normal?

    YES

    GO TO 4.

    NO

    Replace rear power window motor LH or rear power window motor RH. Refer to Removal and Installation .

  4. REPLACE BCM 
    1. Replace BCM. Refer to Removal and Installation .
    2. Confirm the operation again.

    Is the inspection result normal?

    YES

    INSPECTION END

    NO

    Replace BCM. Refer to Removal and Installation .