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.
Master Power Window Switch
Turn ignition switch to OFF position. Disconnect master power window switch harness connector. Using an ohmmeter, check for continuity between specified switch terminals while operating switch. See MASTER POWER WINDOW SWITCH CONTINUITY (SEPHIA & SPECTRA) table. See Fig 1 If continuity is not as specified, replace master power window switch. Retest system.
| Application & Switch Position | Continuity Between Terminals No. | |
|---|---|---|
| Left Front | ||
| UP | 5 & 7; 12 & 13 | |
| OFF | 5, 12 & 13 | |
| DOWN | 5 & 12; 7 & 13 | |
| Right Front | ||
| UP | 8 & 11; 9 & 12 | |
| OFF | 9, 11 & 12 | |
| DOWN | 8 & 9; 11 & 12 | |
| Right Rear | ||
| UP | 3 & 8; 4 & 12 | |
| OFF | 3, 4 & 12 | |
| DOWN | 3 & 12; 4 & 8 | |
| Left Rear | ||
| UP | 1 & 7; 2 & 12 | |
| OFF | 1, 2 & 12 | |
| DOWN | 1 & 12; 2 & 7 | |
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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.