How do wiper motors know where to stop and change direction?
Cannot figure that out after disassembling. The slipping magnet is probably the counter.
My passenger side LHD stops in the middle. "pvcabbe"
C5 2010 wipers.
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Estately
- Donor 2024
- Posts: 224
- Joined: 02 Nov 2010, 20:50
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Re: C5 2010 wipers.
Hi,
As you may have read on the forum, C5X7 wiper issues are well covered.
The specific answer to your question is that there is a magnet on the drive shaft, this magnet interacts with the circuitboard within the casing containing the wiper gearing.
If the magnet moves along the shaft, I think caused by heat build up, it fails to interact with the circuit board and no wiper movement.
Furthermore there is a master slave relationship between the two motors, the driver's side being the master.
So if the driver's side plays up, no wipers, if the passenger side has an issue, then the driver's side keeps going and the driver gets quite good vision.
Hope that helps.
Andy.
As you may have read on the forum, C5X7 wiper issues are well covered.
The specific answer to your question is that there is a magnet on the drive shaft, this magnet interacts with the circuitboard within the casing containing the wiper gearing.
If the magnet moves along the shaft, I think caused by heat build up, it fails to interact with the circuit board and no wiper movement.
Furthermore there is a master slave relationship between the two motors, the driver's side being the master.
So if the driver's side plays up, no wipers, if the passenger side has an issue, then the driver's side keeps going and the driver gets quite good vision.
Hope that helps.
Andy.
If it can happen it will.