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.
2003 Toyota Matrix Base, FWD, AutomaticFACTORY OEM SERVICE PROCEDURE
On-Vehicle Inspection
- CHECK BASIC FUNCTION (MANUAL OPERATION FUNCTION)Β
- Turn the ignition switch ON.
- Check that the door glass moves up when each window switch of the regulator master switch assembly is turned UP and moves down when each window switch is turned DOWN.
- Check that the door glass moves up when the window switch of each regulator switch assembly is turned UP and moves down when the window switch is turned DOWN.
- Check that the other door glasses than the driver's door glass do not operate when the window lock switch is turned LOCK.
- Turn the ignition switch ON.
- CHECK AUTOMATIC OPERATION FUNCTIONΒ
- Turn the ignition switch ON.
- Check that the AUTO DOWN operates and the door glass is fully opened when each window switch of the regulator master switch assembly is turned DOWN by double-shift.
- Check that the AUTO DOWN operates and the door glass is fully opened when the window switch of each regulator switch assembly is turned DOWN by double-shift.
- Check that the door glass stops when the applicable switch is turned UP during the AUTO DOWN operation. (However, if the switch is kept in the UP side, the window will transfer to the manual operation.)
- Turn the ignition switch ON.
Factory Service Tools
Use the Manual With the Right Hardware
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- β’ You smell fuel, burning insulation, or see smoke.
- β’ Brakes feel soft, pull hard to one side, or make grinding noises.
- β’ The engine overheats, stalls repeatedly, or misfires under load.
- β’ You are missing required tools, torque specs, or safe lifting equipment.
- β’ You are not confident in the next step or safety outcome.
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