Lights But No Blink
At the risk of being semi-mocked again, here I go. Towed our 2002 Cardinal this w/e. Going up, zero issues. Hooked up to come home, had no left turn signal on 5er. Everything else worked great, ju...
Forum Discussion
If it is the truck then it means a blown relay, maybe not on GMC but certainly on Fords. Unplugging the trailer with the truck running can cause these relays to be fried.
The tester is essential to debug these issues.
The tester is essential to debug these issues.
