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Inspection Procedure

  1. INSPECT POWER WINDOW REGULATOR MOTOR 
    1. Remove the power window motor.
    2. Apply battery voltage to the motor connector according to the table below.
      NOTE: Do not apply battery to any terminals except terminals 1 and 2.

      Standard 

      VOLTAGE SPECIFICATION TABLE

      Measurement Condition Specified Condition
      Battery positive (+) → Terminal 1 (D)
      Battery negative (-) → Terminal 2 (U)
      Motor gear rotates counterclockwise
      Battery positive (+) → Terminal 2 (U)
      Battery negative (-) → Terminal 1 (D)
      Motor gear rotates clockwise
      Fig 1: Identifying Power Window Regulator Motor Operation
      G05006580Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    NG: REPLACE POWER WINDOW REGULATOR MOTOR 

    OK: Go to next step. 

  2. CHECK WIRE HARNESS (WINDOW REGULATOR MOTOR - MULTIPLEX NETWORK SWITCH) 
    1. Disconnect the P21 and P26 connectors.
    2. Measure the resistance according to the value(s) in the table below.

      Standard resistance 

      STANDARD VOLTAGE SPECIFICATION TABLE

      Tester Connection Condition Specified Condition
      P21-1 (DN) - P26-1 (D) Always Below 1 Ω
      P21-6 (UP) - P26-2 (U) Always Below 1 Ω
      P21-1 (DN) - Body ground Always 10 kΩ or higher
      P21-6 (UP) - Body ground Always 10 kΩ or higher
      Fig 2: Identifying P21 & P26 Connector Terminals
      G05274264Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

    OK: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE