Trying to help a friend fix his truck.
Started out with the windshield wipers turning on by themselves. Wiper switch was off. Sometimes hitting the brakes turned them off. Then dash lights started to come on during the daytime by themselves. Both turn signal lights on, (like 4way flasher is blown).
Bought this truck used, 94 GMC Sonoma 4.3l 2wd. Previous owner had no problems, but had alarm removed before he sold it.
I have my ideas, but looking thru this forum, I see many posts about wiring problems, and hoped this might ring a bell.
Truck has 115,000 miles, and only item replaced was the fuel pump.