Question about GMC Cars & Trucks
SIGNAL LIGHT DONT WORK OR HAZZARD
In the instrument panel relay center,below the center of the instrument panel
Posted on Aug 14, 2017
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Posted on Jan 02, 2017
There is a make or break circuit between the fuse box and the computer that may have sprung. If you find the relay, there is a small small hole in it. You need a toothpick, put the toothpick in the hole and there is sort of a button in there. You will hear it pop like a spring going into place and then the indicators should work.
Posted on Jun 20, 2009
sounds like the directional switch maybe bad (lever on steering column ) if u open the column u can test the wires and see if it is passing current to tail lights have seen these go bad many times in older jeeps
Posted on Jul 08, 2009
When you said that you checked the brake switch, did you check it live? Meaning verified live power to the switch, press switch, and then power came out the other terminal?
If so, also verify zero power on brake press, at the offending brake light bulb terminal. You must verify the test light each time you move it...leave running lights on...
After verifying that there is no power coming, after the brake is pressed, note the wire color and find it where it comes to the steering column and test there... This would eliminate wires and connections between front and the rear of the vehicle, unlikely, but needs to be tested.
After verifying no power at that terminal, then yes the t/s switch is certainly suspece. This may be the time to get a mechanic to verify and replace the switch, there are locks, tilt mechanisms, air bags, column bearings, etc involved. Failures risk loss of vehicle control (locking or binding for example.)..
Hope this gets you going in the right direction.
Posted on Sep 09, 2009
Testimonial: "Thank You. I tried those things and it seemed to be the Emergency Flasher switch in the multi function switch."
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