Alright, i'm getting annoyed now.

I had an SES and ABS light on. It was not a TPS problem because the SES has turned itself off (it was a cat code) but the ABS INOP remains. I've driven it well over 350 miles and it's been over two weeks.

There are NO loose wires...

wtf.

It seems to be a common problem, but nobody i've asked knows how to fix it because, unfortunately for me, it's more than just an unplugged wire. I don't want to go to the dealer just to have them BS me either.

This all happened after I got the car dynoed.

 

The ABS computer is separate from the PCM, so the two lights are probably not related. A special diagnostic tool is needed to read ABS codes.

The GM manual has a HUGE section dedicated to diagnosing the ABS. Looks pretty tough to do it yourself. Maybe the dealer can read the code for you and then you might know where to look. Maybe a wheel sensor. Good luck.

 

Here is a pic of the back sensor connector.



And a pic of the wire...



Can any of you see anything that may be causing my ABS blues? Grounds? Anything?

What the heck happened on that dyno?