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You rewired your trailer and you have all of the lights but no brake lights?
Wiki User
∙ 14y ago
Your trailer tailights are dual-filament, with one being the running lights and the other the brake lights. You need a separate power source from your towing vehicle's brake lights to power them. The easiest way to do this is go to U-Haul and but a set of their trailer towing taillight bulbs for your towing vehicle. The bulbs replace your standard tail/brake light bulbs, and they have two wires coming out of the base of the bulb. One of the wires connects to your trailer's running lights, and the other one connects to your trailer's brake light circuit. I'm trusting that when you re-wired your trailer, you ran two wires from the taillight socket, one for the running lights and one for the brake lights. In some trailers, the brake light circuit also doubles as your turn signals. Good Luck.
Wiki User
∙ 14y ago
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When my running lights are working on my trailer my turn signal lights and brake lights don't work but if running lights are off turn signal and brake lights work?
I would check the running lights for one with a short. I had the same sort of thing with my trailer and I spent way to much time troubleshooting the brake and signal wires. Turns out a running light bulb connector was grounding out on the trailer and messing it all up.
No lights on the rear at all Fuses and relays all goodAll front lights workI was wiring a trailer plug in and touched 2 wires together brake tail.Brake lights and tail lights were on.at time.?
changed brake light switch at pedal and still no brake lights
2007 dodge ram 2500 4x4 diesel brake lights not working third brake lights does. running and turn signals work. and all trailer lights work?
we are having back brakes problems
What is Trailer light?
They are lights that go on your trailer to show your turn signal and brake lights. Reese Hitches has all of the top brands if you're in the market for some: http://www.reesehitches.com/product_categories/trailer_lights
You step on the brake when the directional is on and all the lights flash is there a short in the lights or the fuse box?
If you have a plug for trailer lghts it is probably a short circuit in the socket.
Your 99 f150 has no brake lights all other lights are okrunning lights directials ect?
It has a separate fuse .I bet you have a trailer connection. The correct fuse is noted in the owners manual.
What is the problem if all tail lights brake lights and turn signals work on a 1999 Ford pickup and the tail lights on the horse trailer don't work?
I would first check the grounding between the truck and the trailer. If the ground is good then bulbs would be the next thing to check.
Why won't brake lights work on 2000 buick lesabre?
Check all fuses first, check the brake switch located under the dash above the brake pedal. If you have a hitch on the car check the trailer wiring harness.
1995 Chevy blazer and all your lights work except brake lights but the third brake light works?
I assume you have checked/replaced the bulbs. Take a cicuit tester and check the wire harness connections under the bumper and around the trailer connector if you have one. The problem must be at that area IF all your other lights are working as you said.
Why does your left side trailer blinkerbrake light not work on your Avalanche The right side trailer lights work fine as do all lights on the truck itself work fine. There's no 12v at the 7-prong.?
If the Avalanche came with the factory trailering package, the trailer lights are separately fused from the other truck lights. Check your fuse panel layout for a 10-amp fuse for left side and a separate fuse for right side turn signal/brake light on the trailer.
Why are your trailer brake lights staying on when you turn your headlights on?
First you need to understand that most, if not all, vehicle [autos, trucks, and trailers] rear lighting systems have both tail light bulbs and brake light bulbs, OR a single bulb on each side [right and left] that each have two filaments [what glows when electricity is applied]. The tail lights are supposed to be on when the headlights, or parking lights, in the towing vehicle are turned on. The separate brake light bulb, or brake light filament in the dual filament bulbs is only supposed to turn on when the brake pedal is depressed, and the towing vehicle brake lights are on. I suspect that what you are calling brake lights are actually the tail lights. To check this out, run some tests. Have an assistant sit in the vehicle and do the following on your command: 1. Apply brakes by pressing on the brake pedal. The brake lights should turn on. 2. With foot OFF of the brake, turn on the headlights. The trailer tail lights should turn on. 3. With the headlights on, have the assistant depress the break pedal. Even though the tail lights are already on, the brake lights should come on also, causing the trailer lights to brighten noticeably 4. While you're checking, have the assistant turn the ignition key to on, and one at a time test the left and right turn signals. Again, I think what you think are brake lights, are actually the tail ligts.
2003 dodge ram 2500 brake lights have a 2 second delay and third brake light does not go on with brake pedal applied All brake lights work instantly when you push button on electric trailer brake cont?
A blow 15 amp fuse in the under dash fuse panel causes that i think it is fuse # 24, goes to csmt or something like that
