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Home >> Lexus >> 2003 >> LS 430 >> Repair and Diagnosis >> External Pages >> Different car >> Section 484 (Power Window Control System - Diagnostics) >> Manual Up/Down Function Does Not Operate On Rear LH >> Inspection Procedure
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Inspection Procedure

WARNING: This page is about a different car, the 2004 Toyota 4Runner. However, it is still accessible from the selected car via links, so may be relevant.
  1. CHECK WIRE HARNESS (POWER SOURCE) 
    Fig 1: Checking Wire Harness (Power Source)
    G02835317Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Disconnect the P10 switch connector.
    2. Turn the ignition switch ON.
    3. Check the voltage between terminal 4 of the wire harness side connector of the switch and the body ground.

    Standard: 10 - 14 V 

    NG: REPAIR OR REPLACE HARNESS AND CONNECTOR (SWITCH <=> RELAY) 

    OK: Go To Next Step 

  2. INSPECT POWER WINDOW REGULATOR SWITCH ASSY REAR (REAR LH) 
    1. Remove the power window switch.
    2. Check the continuity between the terminals of the switch connector when the switch is operated.
      Fig 2: Inspecting Power Window Regulator Switch Assy Rear (Rear LH)
      G02835319Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      Fig 3: Standard
      G02835318Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    NG: REPLACE POWER WINDOW REGULATOR SWITCH ASSY REAR (REAR LH) 

    OK: Go To Next Step 

  3. CHECK WIRE HARNESS (SWITCH <=> MOTOR) (SWITCH <=> BODY GROUND) 
    1. Disconnect the P14 motor connector.
    2. Check the continuity between the wire harness side connectors.
      Fig 4: Identifying P14 Motor Connector And P10 Switch Connector Terminals
      G02835322Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      Fig 5: Standard
      G02835320Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    3. Check the continuity between the P10 switch connector and the body ground.
    Fig 6: Standard
    G02835321Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    NG: REPAIR OR REPLACE HARNESS AND CONNECTOR 

    OK: Go To Next Step 

  4. INSPECT POWER WINDOW REGULATOR MOTOR ASSY LH (REAR LH) 
    Fig 7: Inspecting Power Window Regulator Motor Assy LH (Rear LH)
    G02835323Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Remove the motor (See OVERHAUL ).
    2. Apply battery voltage to connector terminals 1 and 2.
    3. Check that the motor rotates smoothly.
    STANDARD

    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 ASSY LH (REAR LH) 

    OK: REPAIR OR REPLACE HARNESS AND CONNECTOR (MASTER SWITCH <=> SWITCH)