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.
Jam Protection Pulse Switch Operation: Sienna
Disconnect 7-pin driver's side power window motor connector. Connect positive lead of DVOM to connector terminal No. 5 (Gray wire), and negative lead of tester to connector terminal No. 6 (Brown wire). See Figure. Connect positive battery lead to connector terminal No. 2 (Green wire), and negative battery lead to connector terminal No. 1 (Red wire). Ensure pulse is generated while motor is running. Reverse polarity. Ensure pulse is generated. If operation is not as specified, replace motor. See POWER WINDOW MOTOR under REMOVAL & INSTALLATION.
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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.