2005 Lexus GX 470FACTORY OEM SERVICE PROCEDURE

Problem Symptoms Table

PROBLEM SYMPTOMS TABLE - POWER WINDOW CONTROL SYSTEM

Symptom Suspected Area
AUTO UP/DOWN function does not operate at driver side
  1. Power window regulator motor assy LH (Driver side)
  2. Wire harness
  3. Power window regulator master switch assy
AUTO UP/DOWN function does not operate at passenger side
  1. Power window regulator motor assy RH (Passenger side)
  2. Wire harness
  3. Power window regulator switch assy RH
AUTO UP/DOWN function does not operate at rear LH
  1. Power window regulator motor assy LH (Rear LH)
  2. Wire harness
  3. Power window regulator switch assy rear (Rear LH)
AUTO UP/DOWN function does not operate at rear RH
  1. Power window regulator motor assy RH (Rear RH)
  2. Wire harness
  3. Power window regulator switch assy rear (Rear RH)
Manual UP/DOWN function does not operate at driver side
  1. Power window regulator master switch assy
  2. Power window regulator motor assy LH (Driver side)
  3. Wire harness
Manual UP/DOWN function does not operate at passenger side
  1. Power window regulator switch assy (Passenger side)
  2. Power window regulator motor assy RH (Passenger side)
  3. Wire harness
Manual UP/DOWN function does not operate at rear LH
  1. Power window regulator switch assy rear (Rear LH)
  2. Power window regulator motor assy LH (Rear LH)
  3. Wire harness
Manual UP/DOWN function does not operate at rear RH
  1. Power window regulator switch assy rear (Rear RH)
  2. Power window regulator motor assy RH (Rear RH)
  3. Wire harness
Remote UP/DOWN function does not operate
  1. Power window regulator master switch assy
  2. Power window regulator switch assy (Passenger side)
  3. Power window regulator switch assy rear (Rear LH)
  4. Power window regulator switch assy rear (Rear RH)
  5. Wire harness
  6. Instrument panel J/B assy (Body ECU)
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.

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