My interior light and cargo light bulbs work.
Gmc sierra third brake light not working.
Hi i just bought a 2009 chevrolet silverado 1500.
Chevy truck forum silverado sierra gmc truck forums.
2003 gmc sierra 3500 6 0 v8 gas.
I think they are supposed to.
I m hoping for an oddly named fuse or relay.
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.
Feb 23 2014 3 08am.
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.
A blue wire connects the brake lights switch to the rear lamps junction block.
The two bulbs under the dash do not.
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.
If electrical current is reaching the switch but the lights are not working even if the switch is in good condition follow the current flow with your test light to the stop lamps and look for a possible open or short in the circuit.
I checked the following fuses for current.
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 m not sure if it s the switches in the door jamb a fuse or what.
Other things use that ground when the key is on so its not strong enough then to activate the armature within the relay.
Blown out light bulbs are the most common reason for why the brake lights not working but the tail lights are.
That s my next project.
I can not interpret fues box lables to check fuses.
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.
Third brake light not working.
Lol i haven t located a bad fuse.