Question about 1999 GMC Sierra

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We were hooking up my radio and one wire touched the ground and the dash illumination went out and my speedo and tach stopped working

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  • Dar
    Dar May 11, 2010

    You checked your fuses?

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SOUNDS LIKE A FUSE BURNDE OUT LOCATE YOUR FUSE BURNED OUT LOCATE THE FUSE BOX USUALY ON LEFT SIDE OF DASH BY THE DRIVER DOOR LOOK FOR A BLOWN FUSE

Posted on May 08, 2009

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Wiring. The illumination usually has it's own power and ground wires. You'll need a pin out for the plug. Check the power and ground at the plug. Missing( most likely), Then check the power wire to any ground or the body. If you have power, then check the ground wire to any hot fuse. If you don't get a 12 volt reading, cut the wire and run a new ground. Same for the power wire. But it is best to run the power wire back to the light switch.

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Sounds like you have some confusion going on here.
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