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.
Wiper motor, function - GF82.30-P-4104-01S
Function
The wiper motor (M6/1) is a DC motor with three brushes. Depending on which pair of brushes is energized, the wiper motor operates at different speeds.
Cam switch
The cam switch is closed when the wiper is in the park position. With each wiping cycle the cam switch opens and closes when the non-actuated state is reached. This generates the signal c. 31b.
The circuit 31b signal is used to detect whether the wiper motor (M6/1)
- is operating correctly,
- locked up,
- or in the park position.
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.