I have a 94 GMC Jimmy SLT 4 door 4x4 4.3L for the past month or so I have noticed on occasion (not every time) when I put on my turning signal the wiper comes on just once. Could this be a short somewhere? wipers, cruise, etc are on the same arm as the signal lights. I apologise for my explanation guys...just a woman here trying to find an answer lol.

 

No matter what speed setting? Just one to-and-fro swipe of the blade and it is all over with?

 

Usually when signal is applied while turning or overtaking, yes just one too and fro then it goes off.....speed is not a factor...thanks

 

If your not accidently hitting the wipers on, then another gm multifunction switch bites the dust. You can bring this to any shop, every mechanic has done atleast 50 of them. It will cost around $220