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Home >> Infiniti >> 2017 >> Q50 Base, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 573 (Power Window Control System (Diagnostics)) >> Symptom Diagnosis >> Power Window System >> Keyless Power Window Down Does Not Operate >> Diagnosis Procedure
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Diagnosis Procedure

WARNING: This page is about a different car, the 2020 Infiniti Q50. However, it is still accessible from the selected car via links, so may be relevant.
  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 Diagnosis Description .

    Is the inspection result normal?

    YES

    Replace power window main switch. Refer to POWER WINDOW MAIN SWITCH : Removal & Installation .

    NO

    GO TO 4.

  4. REPLACE POWER WINDOW MAIN SWITCH 
    1. Replace power window main switch. Refer to POWER WINDOW MAIN SWITCH : Removal & Installation .
    2. Confirm the operation again.

    Is the inspection result normal?

    YES

    INSPECTION END.

    NO

    Replace BCM. Refer to BCM : Removal & Installation .