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Home >> Infiniti >> 2009 >> QX56 AWD >> Repair and Diagnosis >> Body & Frame >> Windows >> Power Window Control System >> Symptom Diagnosis >> None Of The Power Windows Can Be Operated Using Any Switch >> Diagnosis Procedure

Diagnosis Procedure

  1. CHECK BCM POWER SUPPLY AND GROUND CIRCUIT

    Check BCM power supply and ground circuit.

    Refer to "DIAGNOSIS PROCEDURE ".

    Is the inspection result normal? 

    YES: GO TO 2

    No: Repair or replace the malfunctioning parts.

  2. CHECK MAIN POWER WINDOW AND DOOR LOCK/UNLOCK SWITCH POWER SUPPLY AND GROUND CIRCUIT

    Check power window switch main power supply and ground circuit.

    Refer to "POWER WINDOW MAIN SWITCH: COMPONENT FUNCTION CHECK ".

    Is the inspection result normal? 

    YES: GO TO 3

    No: Repair or replace the malfunctioning parts.

  3. CHECK MAIN POWER WINDOW AND DOOR LOCK/UNLOCK SWITCH SERIAL CIRCUIT

    Check main power window and door lock/unlock switch serial circuit.

    Refer to "POWER WINDOW MAIN SWITCH: COMPONENT FUNCTION CHECK ".

    Is the inspection result normal? 

    YES: GO TO 4

    No: Repair or replace the malfunctioning parts.

  4. CHECK MAIN POWER WINDOW AND DOOR LOCK/UNLOCK SWITCH

    Check main power window and door lock/unlock switch.

    Refer to "POWER WINDOW MAIN SWITCH: COMPONENT FUNCTION CHECK ".

    Is the inspection result normal? 

    YES: Inspection End.

    No: Check intermittent incident. Refer to "INTERMITTENT INCIDENT ".