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Brake Light / Signal Light Issue


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Posted

I have an issue going on with my 2004 GMC Sierra; it just started tonight (driving home in poor visability conditions in rush hour!). When I press on the brake pedal, my 2 signal indicators on my instrument cluser illuminate very dim, but solid. With brakes depressed, my turn signals do not blink. This alerted me to the problem, so I assumed I had lost my brake lights and when I arrived home I checked.

 

When I press the brakes I get no brake lights, but my 2 signal lights illuminate very dim, mirrioring what my cluster was showing. I still have the 3rd brake light operating normally.

 

Has anyone come across this problem in the past? I'm looking for somewhere to begin on troubleshooting this. I dont have any wiring diagrams on this truck so I'm a little lost. I'm thinking it could be a grounding issue possibly but who knows.

 

Any help would be appreciated!

Thanks

 

Edit: Got it into the garage to melt a bit of snow and took a quick look and it appears as though my rear sway bar I put on a while ago might be pinching the wires on the rear axle. Looks like that could be my problem and it finally chafed through. I'll clean it up and see if that fixes it.

  • 5 years later...
Posted

Did you ever find the solution for this as I am having same issue?

Posted
On ‎12‎/‎3‎/‎2017 at 6:02 PM, fiddz1959 said:

Did you ever find the solution for this as I am having same issue?

the symptom is common with a ground issue, more than likely the wires were pinched causing his issue

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