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.
Circuit Description
The power window regulator master switch assembly controls the driver's power window motor. The jam protection functions only within the operation range of the jam protection during the AUTO UP and MANUAL UP operation.
- CHECK POWER WINDOW REGULATOR MASTER SWITCH ASSY
- The AUTO UP or AUTO DOWN operation works with the ignition switch ON.
- NG: GO TO FLOW CHART (See AUTO UP/DOWN OPERATION OF DRIVER'S DOOR WINDOW IS IMPOSSIBLE (MANUAL OPERATION IS POSSIBLE) )
- OK: Go to next step
- The AUTO UP or AUTO DOWN operation works with the ignition switch ON.
- CHECK JAM PROTECTION FUNCTION OPERATING RANGE
- Check that the jam protection function does not operate with in 4 mm (0.16 in.) before the full-closed position of the door glass.
- OK: NORMAL
- NG: Go to next step
- Check that the jam protection function does not operate with in 4 mm (0.16 in.) before the full-closed position of the door glass.
- RESET POWER WINDOW REGULATOR MOTOR
- Reset the power window regulator motor (See OVERHAUL ).
- Check if the door glass operates normally.
HINT:
Unless the door glass operates normally, make an adjustment of the door glass assembled condition and then check the operation once again.
- OK: NORMAL
- NG: REPLACE POWER WINDOW REGULATOR MASTER SWITCH ASSY
NO RELATED
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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.