2003 Ram with 100,000+ miles. My right turn signal and brake light stopped working on my trailer and truck camper. First checked the wiring going to the trailer and camper, no apparent problems. Then I checked the fuse/relay box to see if there was a blown fuse. Well there are a ton of fuses and relays in there, and the main truck lighting has fuses and relays which are replaceable.
Turns out that the trailer lights are on a different circuit, and the relay is built into the fuse box itself and is not replaceable. $500+ to replace the fuse / relay box just for the part alone. The part is specific to the VIN number of the vehicle so finding the right one in a bone yard would be a crap shoot.
I ended up tapping into the trucks brake light circuit and jumping a wire over to the trailer wiring harness. Ghetto rigged, but it works and saved me from spending $500 on a relatively old truck. I figured that since the trucks main lighting circuit is fuse protected the since the relay iseasily replaceable that this was my best option.
Turns out that the trailer lights are on a different circuit, and the relay is built into the fuse box itself and is not replaceable. $500+ to replace the fuse / relay box just for the part alone. The part is specific to the VIN number of the vehicle so finding the right one in a bone yard would be a crap shoot.
I ended up tapping into the trucks brake light circuit and jumping a wire over to the trailer wiring harness. Ghetto rigged, but it works and saved me from spending $500 on a relatively old truck. I figured that since the trucks main lighting circuit is fuse protected the since the relay iseasily replaceable that this was my best option.
