My ABS Light comes on & off

[88Racing]

Originally Posted by BPS

My ABS light started coming on & off over the past month or so.

Every time its happened was while I was towing my TT w/ my gryphon set to the 87 Tow Tune.

I havent been to the dealer yet to have it checked out but I did return to stock & removed the gryphon from the truck.

I'm still going to take it to the dealer, since its still under warranty.

My real question is, how do I make sure they don't flash my PCM??

I don't even know if this is a common practice, but I don't want to deal with getting my custom tune rewritten (& Charged again)

Also what if they don't see anything wrong with the truck??

Again, What if I plug in the Gryphon again the ABS Light reappears??

Thanks Lee

Put it back to stock and try towing.
If it happened again then the programmer is ruled out of the equation.
Quite frankly the programmer doesn't have anything to do with the abs system.
I'm wondering if one of your senser wires has a knick or a cut in it.