2008 F 150 Brake Controller Question
I just purchased a 2008 F 150 Lariat and I am installing my brake controller. The truck came with the tow package and the 3.73 axle. Will I need to add any fuses or relays to power the brake control...
Forum Discussion
lasttruck wrote:You are correct - the relay is to disconnect the trailer from the truck when the engine is off. Saves running the truck batteries down when using the trailer.
My 2007 came with a relay to add to the fuse box along with a pigtail to plug into the harness behind the dash for the controller to wire to.
IIRC the relay was for the 12vdc supply to the trailer.
There should be a spot for the relay marked on the fuse panel cover.
OP needs a separate fused 12V supply for the brake controller.
Not familiar with 2008 F150 wiring, but a 20A in-line fuse holder connected to a live stud on the underhood fuse box is a sure-fire way to go if a closer connection is not available.
