Chevrolet Repair Questions? Ask a Mechanic for Answers ASAP
Hello and thank you for your question!My name is ***** ***** I will be assisting you with your question today.
If you unplug the backup light switch on the transmission, does the fuse still blow?
Do you have a trailer hitch and wiring on this?
So I know you have checked the wiring from the tail lights. If the wire going to the switch is or was grounded out, it should still pop the fuse. Try unplugging the rear light sockets themselves and see if it stops blowing the fuse. The issue could also be the switch itself. IF you can do it, run a power wire to the tail lights right off the switches connector on the harness. If there isn't a problem, you should get the backup lights working.
I will help you with the dash lights also, but one step at a time. We get the back lights working properly, find the source of the problem, it might resolve the other light issue.
Let me know.
Its really no problem, hopefully it will be something like the switch causing the problem. I understand working, so please reply when you can and we can go from there.