2007 Lexus RX 350 AWDFACTORY OEM SERVICE PROCEDURE

Power Window Control System: Fail-Safe

  1. CHECK POWER WINDOW FAIL-SAFE FUNCTION 

    HINT:

    If there is a malfunction in the power window system, some of the power window functions will be disabled.

    Driver side power window 

    FAIL-SAFE TABLE

    Malfunctioning Part Disabled Function Operative Function
    Pulse sensor circuit in power window motor
    • AUTO UP/DOWN function
    • Power window operation function after ignition off
    • Manual UP (fully pulled UP position)
    • Manual DOWN
    • Remote (AUTO and manual)
    • Remote function after ignition OFF (AUTO and manual)
    • MANUAL UP/DOWN function via driver side door lock key cylinder
    • MANUAL DOWN function via transmitter
    CPU in power window master switch
    • AUTO UP/DOWN function
    • Remote function (AUTO and manual)
    • MANUAL UP/DOWN function via driver side door lock key cylinder
    • MANUAL DOWN function via transmitter
    • Manual UP (fully pulled UP position)
    • Manual DOWN

    Power windows except driver side power window 

    POWER WINDOWS EXCEPT DRIVER SIDE POWER WINDOW

    Malfunctioning Part Disabled Function Operative Function
    • Pulse sensor circuit in power window motor
    • CPU in power window master switch
    • Communication between master switch and each power window switch
    • AUTO UP/DOWN function
    • Power window operation function after ignition OFF
    • MANUAL UP/DOWN function via driver side door lock key cylinder
    • MANUAL DOWN function via transmitter
    • Manual UP (fully pulled UP position)
    • Manual DOWN
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.