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.
Opening and Closing with Toll Function
The toll function is implemented for all power windows. The corresponding power window motor is driven in the OPEN or CLOSE direction by pressing or pulling a power window switch beyond the limit stop.
The power window motor moves the window automatically until it is completely open or closed. Power window operation is stopped when the power window switch is pressed or pulled again.
By way of example, the opening and closing procedure for one of the rear windows is illustrated by the signal path in the following graphic. The opening or closing function is initiated from the driver's door switch cluster.
| Index | Explanation |
|---|---|
| 1 | SBFA power window switch in driver's door switch cluster |
| 2 | Footwell module (FRM) |
| 3 | Car Access System 4 (CAS 4) |
| 4 | Junction box electronics (JB) |
| 5 | Power window motor |
| LIN-Bus | LIN-bus |
| K-CAN2 | Body-CAN2 |
| KI. 30B | Terminal 30, basic operation |
| KL. 58g | Terminal 58g |
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.