Inspection Procedure

2005 Lexus ES 330SECTION Inspection Procedure
  1. INSPECT POWER WINDOW REGULATOR MOTOR ASSY LH
    NOTE:
    • Be sure not to apply the battery voltage to terminals 2,3 and 6 of the power window regulator motor assy LH connector, because it might damage the pulse sensor and the limit switch .
    • Be sure to reset the power window regulator motor assembly (initial position setting of the limit switch)when the power window regulator motor assy LH is installed to the regulator.
    1. when adding the battery voltage to each connector terminal, check that the motor operates smoothly.
      BATTERY CONNECTION AND OPERATION

      Battery Connection/ (Battery Motor Terminals Operation
      Positive-4/Negative-5 Clockwise rotation towards driving axis
      Positive-5/Negative-4 Counterclockwise wind rotation toward driving axis
      Fig 1: Identifying Power Window Regulator Motor Assy LH Connector Terminals
      G02938667Courtesy of Β© TOYOTA, LICENSE AGREEMENT TMS1002

    NG/REPLACE POWER WINDOW REGULATOR MOTOR ASSY LH

    OK

  2. CHECK WIRE HARNESS
    1. Disconnect the D17 power window regulator master switch and P17 power window regulator motor assy LH connectors
    2. Check the continuity between the disconnected connectors.
      TESTER CONNECTION AND SPECIFIED CONDITION CHART

      Symbols (Terminals No.)/ (Switch <-> Motor) Specified condition
      MUP<->U (D17-1<->P7-4 Continutiy
      MDN<-> (D17-11<->P7-5 Continuity
      Fig 2: Checking Wire Harness
      G02938668Courtesy of Β© TOYOTA, LICENSE AGREEMENT TMS1002

    NG/REPAIR OR REPLACE WIRE HARNESS AND CONNECTOR

    OK

    REPLACE POWER WINDOW REGULATOR MASTER SWITCH ASSY

RENDER: 1.0x

NO RELATED

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • β€’ You smell fuel, burning insulation, or see smoke.
  • β€’ Brakes feel soft, pull hard to one side, or make grinding noises.
  • β€’ The engine overheats, stalls repeatedly, or misfires under load.
  • β€’ You are missing required tools, torque specs, or safe lifting equipment.
  • β€’ You are not confident in the next step or safety outcome.