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Home >> Lexus >> 2007 >> IS 350 >> Repair and Diagnosis >> Body & Frame >> Windows >> Windshield/Window Glass >> Power Window Control System >> Driver Side Power Window Motor 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 POWER WINDOW REGULATOR MOTOR  .
      NOTE: Do not apply battery voltage to any terminals except terminals 1 and 2.

    Standard 

    POWER WINDOW REGULATOR MOTOR

    Measurement Condition Specified Condition
    Battery positive (+) --> Terminal 2 (U)
    Battery negative (-) --> Terminal 1 (D)    		 Motor gear rotates clockwise
    Battery positive (+) --> Terminal 1 (D)
    Battery negative (-) --> Terminal 2 (U)    		 Motor gear rotates counterclockwise
    Fig 1: Identifying Power Window Regulator Motor Connector Terminals
    G04050731Courtesy 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 MASTER SWITCH) 
    1. Disconnect the M7 and M3 connectors.
    2. Measure the resistance according to the value(s) in WINDOW REGULATOR MOTOR - MULTIPLEX NETWORK MASTER SWITCH  .

      Resistance 

      WINDOW REGULATOR MOTOR - MULTIPLEX NETWORK MASTER SWITCH

      Tester Connection Condition Specified Condition
      M7-1 (UP) - M3-2 (U) Always Below 1 ohms
      M7-11 (DN) - M3-1 (D) Always Below 1 ohms
      M7-1 (UP) - Body ground Always 10 k ohms or higher
      M7-11 (DN) - Body ground Always 10 k ohms or higher
    Fig 2: Checking Wire Harness (Window regulator Motor - Multiplex Network Master Switch)
    G04050723Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

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

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