Just my opinion, check for voltage and ground at the wiper motor. Did you check the wiper fuse where applicable. Is there voltage at the fuse? How many wires for wiper only? If three, one is voltage, the other two are grounds for speed control.
The diagram is for 71 GM, hope it is the same as you have? The vintage wiring I have access to, can be tough to follow, it looks like spagehti, I guess I can't spell that word, spell check put a red line under it. Lol
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Saturday, January 18th, 2014 AT 12:07 PM