Programming FOB failed HELP or Idea
Ok, I have a class C on a 2014 Ford E450. I’m trying to program another fob. Instructions in owners manual say to cycle key on and off 8 times and end in the on position then push any button on the fo...
Forum Discussion
Big Katuna wrote:
I think you’re correct.
Do the fobs have code numbers on the back for various frequencie?
I do not remember. I do not think so, I think the FCC sets the fequencies and that is part of the model number. There is a ROM chip in the car's moduel and the fob, they must have the same OS programmed in the chips.
Think of it like a mouse and dongal, they are different between a makers mice but they must be matched to one another.
In my family we have a mustang and explorer that use the same fobs, a f150 that is different and a second explorer that is totally keyless. They don't cross match, yet they may be the same frequency..
