Lol i haven t located a bad fuse.
Gmc sierra third brake light not working.
Third brake light not working.
The two bulbs under the dash do not.
That s my next project.
Yes i need help brake lights work with doors open or closed with brake pedal on just the third brake light does not work when ignition is on and doors are closed.
My interior light and cargo light bulbs work.
Chevy truck forum silverado sierra gmc truck forums.
Feb 23 2014 3 08am.
I m hoping for an oddly named fuse or relay.
Blown out light bulbs are the most common reason for why the brake lights not working but the tail lights are.
I checked the following fuses for current.
If only the third brake light or the lower two lights work start by checking the circuit fuses first.
The possible reasons for brake lights not working but tail lights are.
Interior fuses 12 stoplamps center high mounted stoplamp worked fine.
Hi i just bought a 2009 chevrolet silverado 1500.
Remove the screws from the bulb lens which you can access through the trunk or see your vehicle repair manual to get the exact location.
I think they are supposed to.
A blue wire connects the brake lights switch to the rear lamps junction block.
None of the lights come on when i open my doors.
If at least one brake light works but one or two others don t troubleshooting is relatively easier than dealing with a circuit where none of the lights work.
3rd brake light and cargo lights not working.
I m not sure if it s the switches in the door jamb a fuse or what.
If your third brake light works either way but the rear brake lights stop working when the truck is on its a faulty ground wire to the stop lamp relay.
Other things use that ground when the key is on so its not strong enough then to activate the armature within the relay.
2003 gmc sierra 3500 6 0 v8 gas.