We are so frustrated with this truck! '03 Chevy S10 quad cab, 67,000km.
It has been one problem after another, what a lemon! Now the whole dash info (digital), radio and gas guage have stopped working. We have replaced the fuses, no lock. Truck rune fine, but this is still a huge problem, please help.
I'd start checking the relays if the fuses are all fine. I wouldn't think it's a simple wireing problem unless there's been modifications to it.
You should be able to pull up a decent wireing diagram that will show you all of the paths leading into the instrament cluster. Using a diagram, you may be able to bypass some of the wireing to isolate the problem.
First step, get a wireing diagram. Chances are, you'll find your problem from there.