Trailer plug does not have juice to it.......1997 ford expedition

2003 ford expedition trailer wiring Bing images

2003 ford expedition trailer wiring Bing images

As trailer lights are run off the existing wiring of the vehicle then those vehicle fuses control the wires and circuits for the trailer. If you have a problem with trailer lights then check the wires and connections in the trailer plugs.

IF you have this trailer with this vehicle before the problem will probably in the wiring in the plug. Loose broken or corroded away. Check condition of the light sockets and earth points and wiring back to the plug

Yes, well, that is if the trailer plug is the right design for the trailer. They have to match up, but you're in luck. They make adapters for them.

1997 GM product may be different than a 1997 Ford Expedition, for example.

And depending on your trailer, where you get it, and how it is set up for lights and brakes, that will vary.

follow the trailer plug to war they spliced into the tale light weirs. the weir's behind the bulb broken? this is a comin problem.

Most of the Ford products have a trailer package bag that has the extra relays and a wire loom for electric brakes.

The relays go into a box under the hood and give you Heavy Duty flashers for trailers. There are instructions which show you where to plug in the upgraded Flashers in the package.

The trailer light's are just connected to the wire's going to the tail light's so the tail light stop light and indacator's are using the same fuse as your car. If all the light's on the trailer are not working and the tail light's on the car are then most likely it's a bad ground connection. Only one ground wire is connected to the plug so all the light's depend on it.

THERE SHOULD BE SEPARATE FUSES FOR THE TRAILER WIRES. HAVE YOU LOOKED UNDER THE STEERING COLUMN FOR THEM? IF YOU HAVE AND THEY CHECK OUT OKAY, THEN CHECK THE WHITE WIRE ON THE TRAILER PLUG, IT IS THE ONE THAT IS EXPOSED ON THE TRAILER PLUG. IT IS THE GROUND FOR ALL THE TRAILER LIGHTS AND THE MOST IMPORTANT OF ALL THE WIRES. SEE IF THE TRAILER HAS A GOOD CLEAN GROUND AS WELL(WHITE WIRE). HOPE THIS HELPS. PLEASE KEEP ME POSTED. THANKS FOR AN HONEST RATING AND FOR USING FIX-YA. GOOD LUCK

Did you guys ever solve the issue with your trailer wiring? I have a 2000 Expedition with only one brake light on three different trailers no other lights work. They were working fine and the work fine on other vehicles. I know it could be anything but I'm not sure if it's a known issue that the plug by the rear wheel back to the adapter gets bad or if there is a typical issue that lies elsewhere. I'm just trying to find where to start????

found the problem. there are three fuse boxes under the hood. the smallest one on the back corner on the driver side next to the 2nd small fuse box. there are three fuse boxes under the hood and one under the steering wheel. each has fuses for the trailer hitch lights. thanks.