2007 Lexus GS 450hFACTORY OEM SERVICE PROCEDURE

Fail-Safe Chart

  1. DESCRIPTION 
    1. If a hall IC built-in power window regulator motor malfunctions, the applicable power window components enter fail-safe mode. In this mode, power window system operates as follows:
      Fig 1: Connecting Cable Of Intelligent Tester (With CAN VIM) To DLC3
      G05300156Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Power Window control system 

      FAIL-SAFE CHART

      Power window function Power switch status Power window operation Jam protection function
      Manual UP (switch fully pulled up and held) Power switch ON (IG) Operate Does not operate
      Manual DOWN Power switch ON (IG) Operate Does not operate
      Key-linked open - Does not operate -
      Key-linked close - Does not operate Operates
      Wireless transmitter-linked open - Does not operate -
      Manual UP (switch fully pulled up and held) Power switch OFF (key-off function operates) Does not operate Operates
      Manual DOWN Power switch OFF (key-off function operates) Does not operate -
      AUTO UP Power switch OFF (key-off function operates) Does not operate Operates
      AUTO DOWN Power switch OFF (key-off function operates) Does not operate -
Factory Service Tools

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When to See a Mechanic

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

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