Ah, where to begin. Mods, feel free to move this if this isn't the right spot to post this topic. Also, feel free to delete this if it has been covered somewhere, I'm just not seeing it and it has become very frustrating.
Let's begin. Just like the title says, it's a 98 XLT Ex 5.0. I recently got my hands on a new to me trailer and naturally need a place to plug the lights in. Trailer has a 7-pin connector with only the green, yellow, brown and white wires in use. Ex has never had trailer lights wired but has a new 2" receiver installed underneath. Upon my initial research I learned the first thing to do was to locate the factory plug behind the drivers side taillight. Done. Ordered the harness to go from ford plug to flat 4 and made an adapter to go from flat 4 to 7-pin. Done. Connected everything, turned on the three way switch for the lights on the dash, lights everywhere except on the trailer. Bummer! Now what? I keep reading about seperate relay boxes number 2, number 3 whatever and cannot find any more info on where they are exactly and what I should be looking for. Fuse 3,7 and 30 in the fuse panel on the side of the dash are all good and the owners manual doesn't list anything remotely close to the words "trailer" or "tow". I did some tests on the plug behind the taillight and found 12v power between two of the pins but got a negative reading on a third and nothing on the fourth. Don't know what colors they were off hand and don't know if I was even checking them the correct way to be honest. Is there something I'm missing here? Some other test I can perform to narrow this down a bit better? Any help would be appreciated.
Let's begin. Just like the title says, it's a 98 XLT Ex 5.0. I recently got my hands on a new to me trailer and naturally need a place to plug the lights in. Trailer has a 7-pin connector with only the green, yellow, brown and white wires in use. Ex has never had trailer lights wired but has a new 2" receiver installed underneath. Upon my initial research I learned the first thing to do was to locate the factory plug behind the drivers side taillight. Done. Ordered the harness to go from ford plug to flat 4 and made an adapter to go from flat 4 to 7-pin. Done. Connected everything, turned on the three way switch for the lights on the dash, lights everywhere except on the trailer. Bummer! Now what? I keep reading about seperate relay boxes number 2, number 3 whatever and cannot find any more info on where they are exactly and what I should be looking for. Fuse 3,7 and 30 in the fuse panel on the side of the dash are all good and the owners manual doesn't list anything remotely close to the words "trailer" or "tow". I did some tests on the plug behind the taillight and found 12v power between two of the pins but got a negative reading on a third and nothing on the fourth. Don't know what colors they were off hand and don't know if I was even checking them the correct way to be honest. Is there something I'm missing here? Some other test I can perform to narrow this down a bit better? Any help would be appreciated.