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2001 E46 320D Touring - Rear wiper and wash always on

5K views 7 replies 6 participants last post by  cockfawr 
#1 ·
Hi,
My rear waiper and screen wash pump is always on when the ignition is on. What should I look for first to fix this problem?

Thanks in anticipation
 
#7 ·
Check circuit diagrams for other components sharing the same circuit, it could be that the wiper motor/washer pump is picking up an earth (ground) from one these, i.e. following the path of least resistance. A simple test to perform is, with the ignition off, pull the fuses for each component sharing the same circuit then, one fuse at a time, refit them and check wiper/washer operation each time, until you have located any possible culprit. Check the grounding points for those particular circuits. Check also that the contacts in the switch or relay aren't arcing out.
 
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