1994 gmc

Asked by Jul 08, 2016 at 03:33 AM about the 1994 GMC Sierra 1500 K1500 SL 4WD Extended Cab LB

Question type: Maintenance & Repair

OK so I've read everything you have all been
posting but here is my problem. My tail lights and
break lights don't work at all if my head lights are
on, now I've checked fuses headlight switch
replaced multi function switch the circuit board is
good bulbs are all good idk anything about wiring
and I can't find anything wrong in any of it either
help what can I do????

1 Answer


The only thing left to do is trace the wiring from buld socket to all the wiring along the frame of the vehicle.

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