Just wanted to share an issue I had with my 5er trailer brakes. We went camping for the first time this season a few weeks ago. On the way camping then, a message showed up saying "trailer brakes not connected" then it said "trailer connected. I had no other issues. I decided to pull my 5er out of the building today to get ready for our two week trip to the beach next Friday. When I hooked up the 7-Pin connector; my truck was showing: " check trailer wiring". So, I took the 7-Pin plug out and checked all connectors and used sand paper to clean in between the connector pins and gave it a shot of WD-40.... Same message. So, I took my truck to a friends house and hooked up to their trailer and all was working fine. I came back home and plugged back up to mine and "check trailer wire" message. So, I put the 5er up on jack stands and checked to make sure nothing was locked up on the brakes. All was fine. Pulled the emergency brake pin and trailer brakes locked in. Pushed the pin back in and they released. So, I crawled under the trailer and checked the wiring along the axles to make sure nothing had come loose or any wire had rubbed against metal causing a short. The wires with the wire nuts; I took off and cleaned re-screwed the nuts on and re-taped all around the nuts and wires. (By the way, I really hate how they do this; when I get time I'm going to solder the wires together and put on shrink tape). Re-checked the brakes: ...."check trailer wiring". Crap!! **** ------- ^^^^^ ####.
:1106 :. Ok, I got that out of my system; so onward I go. So, I located the junction box where the other end of the 7-Pin goes into the camper. Now on my other 5ers it was in the 5er hitch. Noooooooooo, this one is under the bed inside the camper. Just to say I only keep our spare tire under the bed and nothing else. So, I pulled the cover off the junction box and began to check the wire nuts on the wires. I knew that the big blue wires were for the brakes; anyway that wire nut seemed loose.
....... Went out and re-checked......
. All worked fine. Trailer brake controller was showing gain when I pressed the brakes and no more "check trailer wiring" message. So, all in all it took me about 4 1/2 hours to solve the problem. Now I guess the wire nut some how vibrated loose or something. Anyway, I just wanted to pass on the information in case someone else down the road has a similar problem.
..... Oh no; another problem. I'm out of beer. LOL