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Home >> Lexus >> 2008 >> GX 470 >> Repair and Diagnosis >> Body & Frame >> Windows >> Windshield/WINDOWGLASS >> Power Window Control System >> Manual Up/Down Function does not Operate on Rear LH Only >> Inspection Procedure
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Inspection Procedure

  1. INSPECT POWER WINDOW REGULATOR SWITCH (REAR LH) 
    1. Remove the power window switch (the connector is connected).
    2. Check the continuity between terminal 7 and the body ground.

      Standard resistance: 

      Below 1 Ω 

    NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

    Fig 1: Identifying Power Window Regulator Switch Connector Terminals
    G05846618Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    OK: Go to Next Step 

  2. INSPECT POWER WINDOW REGULATOR SWITCH (REAR LH) 
    1. Check the voltage between terminals 12 and 7.

      Standard voltage: 

      10 to 14 V (Constant) 

    NG: REPAIR OR REPLACE HARNESS OR CONNECTOR (WINDOW REGULATOR SWITCH - POWER SOURCE) 

    Fig 2: Identifying Power Window Regulator Switch Connector Terminals
    G05846619Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    OK: Go to Next Step 

  3. INSPECT POWER WINDOW REGULATOR SWITCH (REAR LH) 
    1. Turn the ignition switch ON.
    2. Check the voltage between terminals 11 and 7 when operating the window lock switch on the master switch.

    Standard voltage 

    VOLTAGE SPECIFIED CONDITION

    Terminal No. Window Lock Switch Specified Condition
    11 - 7 ON 5V
    OFF Less than 1 V

    NG: REPAIR OR REPLACE HARNESS OR CONNECTOR (WINDOW REGULATOR SWITCH - WINDOW REGULATOR MASTER SWITCH) 

    Fig 3: Identifying Power Window Regulator Switch Connector Terminals
    G05846620Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    OK: Go to Next Step 

  4. CHECK WIRE HARNESS (POWER WINDOW REGULATOR SWITCH - POWER WINDOW MOTOR) 
    1. Disconnect the P8 power window switch connector.
    2. Remove the rear door trim LH.
    3. Disconnect the P12 power window motor connector.
    4. Check the continuity between the wire harness side connectors.

    Standard resistance 

    RESISTANCE SPECIFIED CONDITIONS

    Terminal No. Specified Condition
    P8-1 - P12-2 Below 1 Ω
    P8-6 - P12-1 Below 1 Ω
    P8-1 - Body ground No continuity
    P8-6 - Body ground No continuity

    NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

    Fig 4: Identifying P8 Power Window Switch And P12 Power Window Motor Connector Terminals
    G05846621Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    OK: Go to Next Step 

  5. INSPECT POWER WINDOW REGULATOR MOTOR (REAR LH) 
    1. Remove the motor.
    2. Apply battery voltage to the connector between terminals 1 and 2.
    3. Check that the motor rotates smoothly.
      NOTE: Do not apply battery voltage to the terminals except 1 and 2.

    Standard 

    POWER WINDOW REGULATOR MOTOR OPERATION CONDITIONS

    Terminal No. Motor Gear Rotation
    Battery positive voltage → 2
    Battery negative voltage → 1
    Clockwise
    Battery positive voltage → 1
    Battery negative voltage → 2
    Counterclockwise

    NG: REPLACE POWER WINDOW REGULATOR MOTOR 

    Fig 5: Checking Power Window Regulator Motor Rotation
    G05846622Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    OK: REPLACE POWER WINDOW REGULATOR SWITCH (REAR LH)