LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Toyota >> 2003 >> Highlander Limited, FWD >> Repair and Diagnosis >> Body & Frame >> Windows >> Power Window Control System - Diagnostics >> Testing >> Driver Power Window Does Not Operate >> Inspection Procedure
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Inspection Procedure

  1. CHECK FUSE 
    1. Check if the D FR DOOR - 20 amp, ECU B 7.5 amp and IG1 7.5 amp fuses are normal.
    1. NG : REPLACE FUSE 
    2. OK : Go to Next Step 
  2. CHECK POWER WINDOW REGULATOR MASTER SWITCH ASSEMBLY 
    1. Check the power source voltage.
      1. Disconnect the master switch connector.
      2. Check the voltage of each terminal of the vehicle's side connector of the master switch.
        Fig 1: Identifying Power Window Regulator Master Switch Connector Terminals
        G02828518Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Standard: 

      Fig 2: Power Window Regulator Master Switch Voltage Condition Table
      G02828519Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. NG : REPAIR OR REPLACE HARNESS AND CONNECTOR 
    2. OK : Go to Next Step 
  3. CHECK POWER WINDOW REGULATOR MASTER SWITCH ASSEMBLY 
    1. Check the GND.
      1. Disconnect the master switch connector.
      2. Check the continuity between terminal 2 (GND) of the vehicle's side connector of the master switch and the body ground.
        Fig 3: Identifying Power Window Regulator Master Switch Connector Terminals
        G02828520Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Standard: Continuity (constant) 

    1. NG : REPAIR OR REPLACE HARNESS AND CONNECTOR 
    2. OK : Go to Next Step 
  4. CHECK POWER WINDOW REGULATOR MOTOR ASSEMBLY LH (DRIVER'S SIDE) 
    1. Disconnect the master switch connector.
    2. Inspect the door glass operation when the battery voltage is applied between terminals 1 (UP) and 11 (DN) of the vehicle's side connector of the master switch.
      Fig 4: Identifying Power Window Regulator Master Switch Connector Terminals
      G02828522Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Standard: 

      Fig 5: Driver's Side Window Regulator Operational Table
      G02828521Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. OK : REPLACE POWER WINDOW REGULATOR MASTER SWITCH ASSEMBLY 
    2. NG : Go to Next Step 
  5. INSPECT POWER WINDOW REGULATOR MOTOR ASSEMBLY LH (DRIVER SIDE) 
    1. Inspect the power window regulator motor assembly LH (Driver side) operation.
      NOTE:
      • Do not apply the battery voltage, because the pulse sensor and limit switch could be damaged if the battery voltage is applied to terminals 2, 3 and 6 of the power window regulator motor connector.
      • Be sure to reset the power window regulator motor (initial position setting of limit switch) when the driver's side power window regulator motor is installed to the regulator.
      1. Check that the motor operates smoothly when the battery positive voltage is applied to each terminal of the connector.

      Standard: 

      Fig 6: Identifying Power Window Regulator Motor Assembly & Connector Terminals (LH)
      G02828524Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      Fig 7: Checking Driver's Side Window Regulator
      G02828523Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Inspect the PTC operation inside the power window regulator motor.
      NOTE: The inspection should be performed with the power window regulator and door glass installed to the vehicle.
      1. Set a DC 400 Amp probe of the electrical tester in the wire harness of terminal 4 or 5.
        NOTE: Match the arrow mark of the probe with the current direction.
      2. Set the door glass in the fully closed position.
      3. When 60 seconds have elapsed after the door glass is fully closed, check now long the current takes to charge, from approximately 16-34 A into 1 A or less, when the power window switch is turned UP once again.

        Standard: Approximately 4-90 seconds 

      4. When approximately 60 seconds have elapsed after the inspection of the current cut-off, check that the door glass goes down when the power window regulator switch is turned DOWN.
    1. NG : REPLACE POWER WINDOW REGULATOR MOTOR ASSEMBLY LH 
    2. OK : REPAIR OR REPLACE HARNESS AND CONNECTOR