I have no left turn signals or brake lights at my trailer connector I have traced the wire to a connector under the floorboard and have no power. The only other connection is at the fuse block. I can hear the relay clicking but they are not working. I would like any suggestions if anyone else has had this problem. and yes the fuse is good. the only other thing that i can think of is the relay which is contained within the fuse block which is 400 bones. so any ideas?

 

On the '03 3500, there are individual fuses for each trailer turn signal, and I beleive each side trailer brake light. can't remember about the brake lights, but I was really upset after re-wiring the whole back end of one of the tandem dual trailers when we first got the truck, only to find out it was just fuses. I don't know if the 2500 is the same way, but I'd check closely.

 

You got it, its the fuse box just had mine replaced yesterday, $425.00. All I know is I'm going to spend some time looking over my trailer to find the short that caused it.

 

I have not had time to look into it lately just pulled the trailer as it was, didn't get pulled over. I am going to look into wiring in external relays to hopefully solve the problem. If I do I will do a write up and pics because I have seen a few more people with the same problem. I just have a hard time replacing a $425 part that chrysler has not made any changes to solve the problem. More than likely it will happen again. It should not be to hard just have to find a way to do it that the computer won't throw a fit. 2-$10 relays>$425 part that is a known failure.