Thread: 2k GTP ABS/TC lights and no codes??

I've been having the lights come on intermittently for weeks now. It seems to only come on when I do a lot of stop and go. When I first start up it's off sometimes. I ohmed out the sensors and all looks normal - resistance changes when I spin the wheels.

I tool it to AAMCO (nobody else would read it, or they wanted $$) The guy had a giant Snapon scanner and he said there's no codes! Tried it with the ignition on and running. ABS/TCS lights were on the whole time.

I am debating just randomly changing the hubs or taking it to the stealership for a diagnosis.

Any other suggestions?

Thanks.

Does anyone know if the module is just a computer that can be simply unplugged, or are we talking about a unit with lots of brake lines going in a nd out of it, connected to the master cylinder?

I've done both just hoping it's a computer swap!

It may be referred to as the EBCM. Here's a link to it:
CHEAP ABS Module Repair for Pontiac Grand Prix

I have the factory manuals, but I stopped reading when it said I needed a special scanner. I read the boards here and read how to ohm-out the wheel sensors. Then I stopped at AAMCO to get the ABS codes read.

Since I had no codes, the ABS/Trac light, and the wheel sensors appeared to work, I was told it was probably the module.

I sent the module out to cheapabs.com and got it back and it's been running 2 days so far (fingers crossed)

By the way - I picked a used ABS module and pump from a 97 - 03 GP GT - not knowing that the GTP uses a different module.

I'd be willing to sell it for what I paid for both parts - $30.

yeah mine is bad too. the junk yard wanted 150$ for it. which i guess is good considering its like 800$ new... but it has to be from a gtp. i am not sure about other vehicles that have the same engine though. id just find one from a gtp to be safe.