Forum Discussion
RoyB
Feb 02, 2015Explorer II
I would also check the owners manual for the truck and see if there may be a FUSE and RELAY associated with trailer/tow backup lights.
I have never tested for back-up lights power on my 2010 FORD truck but did have to install a FUSE and a RELAY in the main fuse panel before I could get TRAILER TOW 12VDC power on BLADE 4 of the trailer connector. Maybe a quick call to the FORD SERVICE MANAGER will get some answers for you...
Also ETRAILER has alot of info on connecting up trailer connectors etc. Might scan through all of that to see if anything helps.
ALso keep in mind BACKUP LIGHTS on your trailer will fall under DOT RULES for safety lights. They may have issues with what you are planning to do when it comes to SAFETY INSPECTION time.
I got busted once for adding BACK-UP lights mounted under the rear bumper to my OFF-ROAD POPUP trailer. DOT wanted those to come ON only when I was in reverse with the truck which I had them coming ON with a manual switch in the trailer. I also did not have DOT APPROVED back-up lights lens - no DOT NUMBER etched into the lens.. I had to quickly remove all of this before I could pass my safety inspection.
Roy Ken
I have never tested for back-up lights power on my 2010 FORD truck but did have to install a FUSE and a RELAY in the main fuse panel before I could get TRAILER TOW 12VDC power on BLADE 4 of the trailer connector. Maybe a quick call to the FORD SERVICE MANAGER will get some answers for you...
Also ETRAILER has alot of info on connecting up trailer connectors etc. Might scan through all of that to see if anything helps.
ALso keep in mind BACKUP LIGHTS on your trailer will fall under DOT RULES for safety lights. They may have issues with what you are planning to do when it comes to SAFETY INSPECTION time.
I got busted once for adding BACK-UP lights mounted under the rear bumper to my OFF-ROAD POPUP trailer. DOT wanted those to come ON only when I was in reverse with the truck which I had them coming ON with a manual switch in the trailer. I also did not have DOT APPROVED back-up lights lens - no DOT NUMBER etched into the lens.. I had to quickly remove all of this before I could pass my safety inspection.
Roy Ken
About Technical Issues
Having RV issues? Connect with others who have been in your shoes.24,344 PostsLatest Activity: Mar 27, 2025