im stumped..

MrSo0h0o · Post by **MrSo0h0o** » Tue Jul 12, 2005 5:34 pm

not sure if this is in the right topic, but:

ok so im having problems with my brake lights. at first i think it was the bulb, so i went out and got a new one. all of them were working except for that one. when i was taking it out, my pliers accidentally touched the harness(metal part) and i thought i shorted out the whole brake light system because now everything didnt come on except for the third brake light inside the cabin.

so i checked all the fuses underneath the steering column and in the engine compartment, checked all rear bulbs. i noticed that all the rear lights will turn on when my headlights are on, but when i step on the brake, they will not light up. im not an expert by far on electrical issues, but could this be a relay of some sort? i know i didnt short it because they still work, so as the subject line says, im STUMPED. my inspection is in august too so i want to try and figure this out.

Randy

ChevyTruckGuy · Post by **ChevyTruckGuy** » Tue Jul 12, 2005 5:45 pm

make sure you check all your grounds...remember in dc voltage everything goes back to ground...

MrSo0h0o · Post by **MrSo0h0o** » Tue Jul 12, 2005 5:54 pm

but the lights work when the headlights are on. they just dont light up when i press the brake

Tue Jul 12, 2005 6:01 pm

You didn't find any blown fuses?

If they all don't work, makes me wonder if there is a fuse blown some where?

MrSo0h0o · Post by **MrSo0h0o** » Tue Jul 12, 2005 6:03 pm

checked all fuses related to the brake/tail lights, none of them were blown. its weird cuz they dont work when i press the brake but are fine when headlights are on.

William from NOLA · Post by **William from NOLA** » Tue Jul 12, 2005 6:03 pm

Did you check all the fuses under the hood?

ChevyTruckGuy · Post by **ChevyTruckGuy** » Tue Jul 12, 2005 6:08 pm

check the brake controller..its a switch that the brake pedal is connected to...send power to your brake lights when depressed..sounds like a faulty brake controller...check it with a voltmeter you should see voltage when you depress the pedal

Tue Jul 12, 2005 6:10 pm

The tail light and brake lights are usually different circuits. That's why they work with the headlights, and not when you step on the brakes.

MrSo0h0o · Post by **MrSo0h0o** » Tue Jul 12, 2005 6:12 pm

yea im gonna check the brake controller tomorrow when its light out. im just hoping its not the relay.

smoker · Post by **smoker** » Tue Jul 12, 2005 6:21 pm

hell a relays easy..this may sound dumb but i have to ask the obvious first....are these dual filament bulbs and if so are the brake filaments broke? its late maybe i missed something i will check in the morning to see