I bought a 7 to 5 pin adapter for my truck. My trailer lights do not work. My question is 7 pin adapter vehicle specific or is it standard across ford/Chevy/dodge?
the connections are standard, however you should trace your wiring. most 7 pin connectors I have seen are wired to the truck with only 4 wires which defeats the purpose of the 7 pin.
the 5-pin is used to fire the solenoid so your brakes do not work in reverse
the connections are standard, however you should trace your wiring. most 7 pin connectors I have seen are wired to the truck with only 4 wires which defeats the purpose of the 7 pin.
Sort of. Some trucks require that relays and fuses be plugged in so that the other pins are activated. My old 2002 F150 required a "kit" which was 2 relays and a fuse or 2 that hooked into the box under the hood so that the brake/reverse circuits worked. My 09 dodge had them all active from the factory.
Been there, done that on 4 trailers now. While vehicle pins are standardized, trailers are not. The first thing I do to any new trailer is to install a conduit box on the tongue and wire a 7pin pig tail to the trailer. Adjustments between auto standard and trailer "standards" are done in box
Well nothing is working now. So if its standard across all trucks I can rule out getting the wrong 7 pin adapter. I think I need to look at the truck now. I pulled every fuse and made sure they were good. Its a new to me truck so I don't know if it was ever working properly. Electrical issues suck to deal with so I may just buy a 5 pin harness that snaps in between the factory harness and just be done with it rather than try to get the 7 pin working.
Well, early 2000 fords were well known for their excellent electrical systems - so if stuff was working and is now not working then I would start cleaning contacts before something catches on fire
However I would get a multimeter and make sure that it is actually your trailer wiring on the truck and not just a problem on the trailer like a bad ground.
or if it was added like the dum***** that wired my dodge, they used a 4-pin to 7 pin adapter and never wired the other 3 wires.
does your ford have a stock brake controller, if so, then the 7 pin may be wired correctly. if there is no brake controller, it was probably not wired correctly
Well its my trailer. I hooked a friends trailer up to the truck today and everything worked on his trailer. I need to replace the tail lights on the trailer so I am going to go ahead and just re-wire the whole thing.
Well its my trailer. I hooked a friends trailer up to the truck today and everything worked on his trailer. I need to replace the tail lights on the trailer so I am going to go ahead and just re-wire the whole thing.
Do yourself a favor and run ground wires to each light rather than just grounding the harness to the trailer frame and then grounding each light to the trailer frame. 99% of the time its a ground problem on trailers.
