But you retain existing complete rear end. Got a spare and swapping it out is as easy as it gets
Body control module. Ford has control modules to run everything, radio, seats, windows, ac, mirrors. Ford likes modules. Basically its a mini computer that controls the features on out trucks. So you hit the tow haul mode button, the bcm(small computer) makes sure all is right in the world then sends signals to the computer(ecm) and transmission (tcm) and tow haul mode is turned on and working. So if the factory wiring goes to one of these computers, it may not have the programming or chips to run the elocker. So a manual on off switch would be the next best thing. The computer systems of the truck wouldnt have a problem of both wheels spinning at the same time. That being said, the computers would have no nannies to keep you from turning it on or automatically turning it off. So you would have to be careful about turning it on and off or have some way to show if it was on or off. Led on the button for on? Amber or red in color.
Gotcha. I'm probably(definitely) in way over my head on all of that. I have the switch coming, I'll ask the guys installing it if they can get it to work. If not, I'll just return the oem switch and go with a dash mounted switch the locker comes with. Would obviously be nice to make it all look tidy and get along with my existing controls, but I can live with it the other way too. Here is a pic of the switch I ordered, and my current control layout.
Ok great! Thanks so much, I'll check out that harness today.Even if your truck didn't come with a locker it still has the fuse and relay for one. But the rear wiring harness will be different. To use the factory button swap out the switch on your console and use Forscan to turn it on under BCM and IPC modules. Then tap into the wiring harness under the cab to power the locker.
