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Home >> Lexus >> 2006 >> RX 400h AWD >> Repair and Diagnosis >> Body & Frame >> Windows >> Windshield / WINDOWGLASS >> Power Window Control System >> Rear Power Window Motor LH Circuit >> Inspection Procedure

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 

      POWER WINDOW REGULATOR MOTOR

      Measurement Condition Specified Condition
      Battery positive (+) -> Terminal 1 (D)
      Battery negative (-) -> Terminal 1(D) Terminal 2 (U)
      Motor gear rotates clockwise
      Battery positive (+) -> Terminal 2 (U)
      Battery negative (-) -> Terminal 2(U) Terminal 1 (D)
      Motor gear rotates counterclockwise
      Fig 1: Identifying Power Window Regulator Motor Connector Terminals
      G04116033Courtesy 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 P20 and P25 connectors.
    2. Measure the resistance according to the value(s) in the table below.

      Standard resistance 

      WINDOW REGULATOR MOTOR - MULTIPLEX NETWORK SWITCH

      Tester Connection Condition Specified Condition
      P20-1 (DN) - P25-1 (D) Always Below 1 Ω
      P20-6 (UP) - P25-2 (U) Always Below 1 Ω
      P20-1 (DN) - Body ground Always 10 kΩ or higher
      P20-6 (UP) - Body ground Always 10 kΩ or higher
      Fig 2: Checking Wire Harness (Window Regulator Motor - Multiplex Network Switch)
      G04116040Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    NG : REPAIR OR REPLACE HARNESS OR CONNECTOR 

    OK : PROCEED TO NEXT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE