Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
2005 Toyota Avalon XLSFACTORY OEM SERVICE PROCEDURE
Circuit Description
If the AUTO UP/DOWN function does not operate, any of the following conditions may be the cause:
- The power window memory of the fully closed position recorded in the multiplex network master switch assy was erased when the battery terminal or connector of the multiplex network master switch assy was disconnected.
- The pulse sensor in the power window regulator motor has a malfunction.
- There is an open or short circuit in the wiring between the multiplex network master switch assy and the corresponding power window regulator motor.
- The multiplex network master switch assy has a malfunction.
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.