Thread: Traction Control Off / Stability Control Off / Service ABS System

Wheel speed sensors. Take the wheels off check connections at the wheel hub.

Before you bother with manual diagnostics, you need to get the code read by a TechII. Find yourself a local GM mechanic that will do this for free. There's only one cheap code reader out there that will read a couple years for ABS Module codes (that I know about). A little searching might find you the answer (I'm too lazy just now).

Once you have the code, then you'll know if you have a wiring problem, a sensor problem, a hub/bearing problem, etc. and save yourself some frustration.

Insofar as an intermittent issue is concerned, I am most tempted to say your ABS Module is fried. They are all faulty from the factory, and all eventually fail, and you'll need to send it out for a rebuild, which should set you back about $100-$150.

Welcome to Wbody lol you'll have to replace a few of them I'm sure. $300 isn't too bad but there's a write up somewhere in detail about how to replace it.

sheeesh, a wheel bearing costs 130 ish, and a hour of your time in your drive way. the only special tool you need is a 34 or 35 mm socket, and a 1/2 breaker bar. and a pipe lol a good torque wrench is nice to have as well.

find the how to section, and just dive in and learn, it will save you big time in the long run. these cars for the most part are pretty easy to work on. and help is only a post away.

And if you learn to do it once it'll make it that much easier in the future. I'm sure you'll be changing another one after all it is a Wbody.