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Make certain that the wiring is connected properly but also, check the ground wire. Don't count on the hitch to be the ground for the trailer. There should be a ground wire that goes to the electrical plug, make certain that it is connected properly.

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Q: Put new lights on the boat trailer brake ights come on when releasing truck brakeAny ideas?
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How do you hook up trailer brake lights from 91 jeep Cherokee?

Many auto parts retailers will have a plug-in trailer connection that is designed specifically for your vehicle. If they do, it's usually just a quick process of following the directions. It's worth it especially since it can help you keep from having the connections corrode.


Are the license plate lights in the warning circuit for the brake lights of your 1986 Honda Prelude?

No, the license plate light is wired in with the rear tail lights, not the brake lights.


No dash lights no tail lights you do have brake lights 1999 Corvette?

replace fuse


Where can you find a wiring diagram for an older Dodge pickup that includes the tail lights brake lights and blinkers?

I think I can answer my own question. Went to walmart and found a brake light for a tow hitch, with a logic circuit on it for $10. I also purchased a converter from a 7 way trailer hitch plug to a 4 way, which is needed for the trailer hitch light. It also was $10. so I will tap into the logic circuit to the third brake light. for $20 it solved my problem. Thought I would pass this along.


Why will your boat trailer tail lights work but not your turn signal or brake lights when hooked up to your 1997 Cherokee when you know for sure the problem is not in tne trailer wiring?

1) I've learned more than anything to unhook the lights before backing the trailer into the water. Nothing like a hot bulb meeting cold water.....but if you believe the advertisements, boat trailer lights should be waterproof and not let water into the space where the bulb is. RIGHT !!!! 2) Now, the other issue that has to do adequate grounding usually needing more just the hitch ball. - inadequate grounding is the number one cause of trailer light problems and cause all kinds of strange behavior (work sometimes, or only when headlights are off, or both sides flash with either blinker, etc.) - try a better ground than the tongue and checking for any corrosion at any of the individual light ground connections (which tend to corrode over time).

Related questions

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.


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).


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.


Why do trailer brake lights work and tail lights don't?

there may be a short get longer wires


What fuse would running lights on trailer for a 2003 ford F250?

Tail lights and brake lights fuse.


Your trailer tail lights go out when you press the brake pedal?

You have a poor or no ground between the vehicle and trailer.


Why is the fuse to your trailer tail lights blowing when you step on the brake pedal?

short circuit on trailer light wiring


What has to be verified as intact before an inbound trailer doors are open?

The brake lights


What has to be verified as intact before an inbound trailer's door are opened?

The brake lights


What has to be verified intact before an inbound trailer doors are open?

The brake lights


What has to be verified as intact before an inbound trailer door are opened?

The brake lights


What has to be verified as intact before an inbound trailer's doors are opened?

The brake lights