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Home >> Infiniti >> 2019 >> Q50 Signature Edition, AWD >> Repair and Diagnosis >> Body & Frame >> Windows >> Power Window Control System >> Symptom Diagnosis >> Keyless Power Window Down Does Not Operate >> Diagnosis Procedure

Diagnosis Procedure

  1. CHECK POWER WINDOW OPERATION 

    Check power window operation.

    Does power window up/down with power window main switch?

    YES

    GO TO 2.

    NO

    Refer to Diagnosis Procedure .

  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 Diagnosis Procedure .

  3. CHECK "KEYFOB P/W TEST" IN "ACTIVE TEST" 

    Check "KEYFOB P/W TEST" in "ACTIVE TEST".

    Refer to CONSULT Function (BCM - INTELLIGENT KEY) .

    Is the inspection result normal?

    YES

    Replace power window main switch. Refer to Removal and Installation .

    NO

    GO TO 4.

  4. REPLACE POWER WINDOW MAIN SWITCH 
    1. Replace power window main switch. 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 .