Quote:
Originally Posted by X5chemist
Welcome to the site. The two guesses are good. Do you have a bidirectional scanner? A bidirectional scanner may help point to the issue. Mine had light, lock, and a parasitic drain at the same time. The issues were traced to the GMIII module. An eBay used module was used as a replacement. All the issues disappeared after cloning.
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I had to look up a bi-directional scan tool, but now it's top on my christmas list-thanks!!
I do have INPA, but was unable to ascertain anything. The intermittency of it makes for some difficult testing. I think I'm going to roll the dice on a GMIII. In the svc manual all roads point to it for wiper/washer control.
Did you take yours to a shop to program?
Thanks all!