LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Infiniti >> 2011 >> M56 Base >> Repair and Diagnosis >> External Pages >> Different car >> Section 73 (Power Window Control System) >> Symptom Diagnosis >> Power Windows Do Not Operate With Power Window Main Switch >> Diagnosis Procedure
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Diagnosis Procedure

WARNING: This page is about a different car, the 2012 Infiniti QX56. However, it is still accessible from the selected car via links, so may be relevant.
  1. CHECK BCM POWER SUPPLY AND GROUND CIRCUIT

    Check BCM power supply and ground circuit.

    "REMOVAL AND INSTALLATION ".

    Is the inspection result normal? 

    YES: GO TO 2.

    NO: Repair or replace the malfunctioning parts.

  2. CHECK POWER WINDOW MAIN SWITCH POWER SUPPLY AND GROUND CIRCUIT

    Check power window switch power supply and ground circuit.

    Refer to "POWER WINDOW MAIN SWITCH: DIAGNOSIS PROCEDURE ".

    Is the inspection result normal? 

    YES: GO TO 3.

    NO: Repair or replace the malfunctioning parts.

  3. CHECK POWER WINDOW MAIN SWITCH SERIAL LINK CIRCUIT

    Check power window serial link 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. CONFIRM THE OPERATION

    Confirm the operation again.

    Is the result normal? 

    YES: Check intermittent incident. Refer to "INTERMITTENT INCIDENT ".

    NO: GO TO  1.