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.
Power Window Regulator Switch: Highlander
Disconnect power regulator switch electrical connector. Connect positive battery lead to connector terminal No. 8, and negative battery lead to connector terminal No. 1. See Fig 1. With switch in UP position, continuity should exist between connector terminals No. 3 and 7, and between connect terminals No. 1 and 6. With switch in DOWN position, continuity should exist between connector terminals No. 1 and 3, and between connector terminals No. 6 and 7. If continuity is not as specified, replace power window regulator switch.
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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.