2007 Lexus LS 460LFACTORY OEM SERVICE PROCEDURE

Front Passenger Side Power Window Switch: Inspection

  1. INSPECT POWER WINDOW REGULATOR SWITCH ASSEMBLY 
    1. Measure the resistance according to the value(s) in the table below.

      Standard resistance 

      POWER WINDOW REGULATOR SWITCH ASSEMBLY RESISTANCE

      Tester Connection Switch Condition Specified Condition
      2 (UP) - 5 (GND) Manual UP operation Below 1 Ω
      10 (DOWN)-5 (GND) Manual DOWN operation Below 1 Ω
      4 (AUTO) - 5 (GND) AUTO UP / DOWN operation Below 1 Ω
      Fig 1: Inspecting Power Window Regulator Switch Assembly
      G04952150Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      If the result is not as specified, replace the power window regulator switch assembly.

    2. Check that the LED illuminates.
    3. Apply battery voltage to the power window regulator switch and check that the LED illuminates.

      OK : 

      POWER WINDOW REGULATOR SWITCH ASSEMBLY VOLTAGE

      Measurement Condition Specified Condition
      Battery positive (+) → 8 (LED)
      Battery negative (-) → 5 (GND)      		 LED illuminates

      If the result is not as specified, replace the power window regulator switch assembly.

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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.