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 Windows System Description - Components
Power Window Master Switch
The power window master switch has a built-in B-CAN transceiver and a LIN transceiver. The power window master switch sends signals to the front passenger's power window switch *2, passenger's power window switch *1, and to the moonroof motor-control unit via the LIN.
*1: 2-door
*2: 4-door
Passenger's Power Window Switch (2-door)
The passenger's power window switch has a built-in control unit. Control is performed by receiving signals from the power window master switch via the LIN.
Front Passenger's Power Window Switch (4-door)
The front passenger's power window switch has a built-in control unit. Control is performed by receiving signals from the power window master switch via the LIN.
Power Window Motors
The motor includes the pulse sensors that detect the window's position and direction with the motor rotation. The rotating direction (up/down) is detected with the rotating cycles from the 2 pulse sensors and the moving amount (window position) is also detected by considering 4 pulses as one rotation pulse.
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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.