Question about 1990 GMC Suburban
There is more than likely a short in the system. The third brake or a wire along the line. Try installing a circuit breaker while you are diagnosing the problem, then start removing bulbs and disconnecting wire harnesses and trying the brakes after each item is removed from the loop. Do one at a time until the circuit stops popping.
Posted on Dec 07, 2014
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Posted on Jan 02, 2017
SOURCE: 1998 gmc sierra brake lights
did u check that they not burn?if not you should Check the wires going into the steering column if you don't have separate turn signal lights and brake lights because if they use the same bulb then the turn signal may be bad. If I remember correctly that particular car doesn't work this way, but I include it just in case.
Posted on Jun 29, 2008
yes , i have a 96 mine done the same thing , i was removing the dash cover to install a radio accidently broke mine , i had to push down on what remained and wedged a sheetrock screw to hold it in place till i could get a new one
Posted on Dec 19, 2008
SOURCE: 93 GMC Suburban, No Tail Lights
Check the trailer plug ground first. If in doubt. Ground in another location. Make sure the area is free of rust and the ground is tight.
Posted on Jun 28, 2009
Does your high mount stop light work? If it doesn't, then it'll be the brake switch located just above your brake pedal.
If the light does work, then it should be the electronic flasher module that will be located under your dash near the steering column. It will be labeled. This controls your signals, but I believe your brake lights are also on the same bulb as your signals, so when this goes, it can affect your brake lights
Posted on Oct 14, 2009
The brake light switch is at fault. Get a new one and replace it. The location is at the brake pedal area mounted on a bracket with a plunger stud that rest on the brake pedal's arm the pad is attached to
Posted on May 08, 2010
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