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 Master Switch
Remove master window control switch from vehicle. See POWER WINDOW SWITCH under REMOVAL & INSTALLATION. Check continuity between specified terminals while operating switch to specified position. See POWER WINDOW MASTER SWITCH CONTINUITY table. See Fig 1. Continuity between harness connector C510 terminals No. 1 and 2 (switch illumination circuit) should exist at all times. If continuity is not as specified, replace switch.
| Switch Position | Continuity Between Connector (Terminal No.) | |
|---|---|---|
| Left Front | ||
| Down | C509 (2) & C509 (7) | |
| Up | C509 (2) & C509 (6) | |
| Right Front | ||
| Down | C509 (2) & C509 (3) | |
| Up | C509 (2) & C509 (4) | |
| Left Rear | ||
| Down | C509 (2) & C510 (6) | |
| Up | C509 (2) & C510 (7) | |
| Right Rear | ||
| Down | C509 (2) & C510 (4) | |
| Up | C509 (2) & C510 (5) | |
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
Disclosure: Verified tool recommendations may earn an affiliate commission at no cost to you.
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.