Question about 1990 GMC Sierra
1990 GMC Sierra 1500 pickup. Windshield wipers will not turn off, windshield washer won't work, cruise control stopped working. Checked fuses, appear to be okay. Tried replacing switch, did not solve problem. Any ideas?
May want to look at replacing the wiper circuit board.It is located on the firewall adjacent to the wiper motor and has a some what square black cover with 3 torx screws and wireing harness pluged into the side.We had a truck that every time you washed it the wipers would stay on until it dryed out.You can try removing it and spaying it down with contact cleaner just watch the brease on the two contact tips.Well hope this helps.
Posted on Feb 05, 2010
The fact of your cruise control 'wont work with the wipers' is a deliberate safety feature. Many vehicles (especially Japanese Hi End cars) wont allow a driver to use CC in the rain.
Posted on Aug 09, 2013
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Posted on Jan 02, 2017
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