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there may be a short
get longer wires
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∙ 13y ago
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Your trailer tail lights go out when you press the brake pedal?
You have a poor or no ground between the vehicle and trailer.
What fuse would running lights on trailer for a 2003 ford F250?
Tail lights and brake lights fuse.
Brake lights do not work when tail lights are on?
On a toyota tacoma 2003 SR5 when the tail lights are turned on the brake lights come on and when the tail lights are of the brake lights work just fine what could be the problem. If the truck has a trailer plug, inspect the plug and plug wiring for damage and corrosion.
Why is the fuse to your trailer tail lights blowing when you step on the brake pedal?
short circuit on trailer light wiring
Which fuses control the trailer lights in a 2004 Ford Expediton?
There are no extra fuses for your trailer lights. If you have the towing package (and you do) the trailer lights run through your regular fuses (tail, brake, turn).
What do you do if the brake lights work but not the tail lights?
i got a 2006toyota highlander my tail lights dont work but,every other light works please help me
1997 suburban Brake lights and turn signals work but tail lights dont what do I do?
Brake lights and turn signals are on a separate circuit from the tail lights. Tail lights are on the same circuit with the dashboard lights. If the dashboard lights aren't working either, check the fuse. If they ARE working, check the headlight switch.
What is the problem when head lights are on and the tail lights dont work but the brake lights work?
If the headlights are on and brake lights work but not the tail lights, it is possible there is a short in the electrical wires. Another cause for this could be that the tail light bulbs are burned out. Most vehicles have more than one bulb inside the tail lights to control different lights at the same time.
Why would Brake lights for semi-truck work but not on trailer Trailer works with different truck?
Try the tractor with a different trailer, the pig tail is most likely not connecting properly.
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.
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
You rewired your trailer and you have all of the lights but no brake lights?
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.
