ABS lights don't come on when running the self diagnostics

I can't say..but check fuses, mayby relays. If you are handy..and own the truck, just get the light working and forget the ABS. ABS is something i have never needed, and never will. Just my opinion .

 

ABS has been a DOT required “option” on every truck since 1997. It’s also been required that trailer abs be able to activate a light on the dash of every ?2001? (Not sure of this date) and newer truck. So if it isn’t working they can write you up.

With that said, sounds like you’ve lost power to the abs module, there should be a fuse panel just behind the drivers door. That’s where you’ll find the fuses for it.

Start there, if nothing is blown, start tracing the wires back to the abs module. Hopefully you find something and save the expense of a mechanic digging for it.