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Originally Posted by Coalkracker
Im trying to knock off the checklist one by one on my 70 c10 that i bought a few years ago and the next thing i need to figure out is my dash lights. The gauge lights, turn signal indicators, and the heat control do not light up. Where do i start trobleshooting this? The switch or the fuse panel? The headlights dont work too so im hoping just the switch but i dont want to rule anything out.
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The first place to start is acquiring a year specific wiring diagram that illustrates wiring color codes. Given the amount of circuits that are involved, there is probably more than one problem. The first electrical items to check is always the fuses and grounds... As an example -- the dimmer switch has nothing to do with the dash light failure. Except for a faulty cluster ground, the dash light failure has nothing to do with the turn signal indictors.