mhegwood02'WS6

My TCS,Emergency Brake,and ABS lights come on and TCS goes off after the car has ran for a small amount of time. There is a problem that I can't find and it's really irratating to see my idiot lights come on and the car runs fine.

myk

iTrader: (4)

Easiest thing to do is check your rear-wheel speed sensors. Over time they can become coated in metallic debris, interfering with the way the reluctor ring interacts with the wheel speed sensors. Give it a shot and let us know what happens...

jsteele90

iTrader: (13)

yeah sounds like a ABS sensor took a crap

mhegwood02'WS6

Roger that, been there done that plus I replaced the front hubs to make sure the internal speed sensors in the front hubs weren't causing the problem to occur. I've spoke to a speed shop owner and several GM dealerships and they said it could possibly be ECM that cost over $900.00, Go figure huh!

myk

iTrader: (4)

Well...before I'd say ECM I'd check out the ABS module first. Now, I don't know how to diagnose the module without a scan tool-maybe someone else here does? Also, $900? I know the ABS module, BCM and PCM's aren't cheap, but $900?

meydron

I had the same problem for a while and the problem was just that my battery was weak Put a new battery in and it worked fine. Might not be your issue but wouldn't hurt to check it before spending money.

pchapin

I have the same problem. After four years I finally took it to Chevy dealer this morning. ABS ECM, $990 plus install. GM part direct $587. Looking for a used one.