SVS, ABS light on

[bronn518]

Hi, I have a 2000 Regal GS and the Service Vehicle Soon and the ABS lights are on. They are on all the time. My scan tool won't pick up any codes. How can I retrieve the codes? Is there any way to reset the lights? The car runs, drives, and stops fine. Any suggestions?

[BNaylor]

Welcome to AF.

The scan tool must be ABS capable to pick up GM CHASSIS/ABS codes and to reset the codes. A common problem is a defective ABS wheel sensor located in the hub/bearing assembly. There are a total of 4. Two front, two rear.

Also, check the electrical connector at the hub and the condition of the wiring harness that runs along the lower control arm.

[BNaylor]

Originally Posted by TMKPA

Mine do that intermittently, typically while I am just tooling along...now I am having the whole car just die out when rolling to a stop. The throttle body is being cleaned as I type this but I do not hold out much hope the issues will be resolved. Other symptoms include the car seeming to start but then "grinding" like the car is already started (like if you turn the key on an already running engine)...all the dash board lights flashing on start up...sometimes the car balks and then the info settings change (going from avg mpg to oil life, etc.)

I had the sensors replaced and still get the problem on and off, the anti-lock lights come on and the brakes feel like they are old worn out drums when I step on the pedal...unfortunately my answer is these cars are a POS and as soon as I can afford to dump it this HEADACHE will be GONE! I can safely say I will never own another Buick and, frankly, I am so sick and tired of the continual problems with this car that GM has lost my business...

If you car is just starting these problems, do yourself a HUGE favor if you can and dump it now...trust me, it only gets WORSE!

Regards, TMK

What year and model Regal do you have? How many miles?

[TMKPA]

Originally Posted by bnaylor

What year and model Regal do you have? How many miles?

2000 Buick Regal GS...112000 miles...

Regards, TMK

[bronn518]

bnaylor, thanks for the advice. I was able to find someone who has a GM tech II scanner and scanned the car for free. One code was found for the right rear wheel speed sensor. I checked the the sensor with a multimeter and its dead. I wish that i didnt have to buy a whole new hub assembly, but oh well. Do you know that if i replace the hub assembly, will the light automaticly go off or do i have to have it scanned again? Thanks, bronn518

[BNaylor]

You're welcome.

Yeah, needless to say the whole Hub/Bearing Assembly has to be replaced. The GM ABS system used in your Regal runs two tests. One at startup where the Electronic Brake Traction Control Module (EBTCM) self test and runs the ABS modulator/motor pack tests, etc. Then after in gear with forward movement up to a certain speed (low) runs tests of each wheel sensor. If the wheel sensor input is good then it will pass and all DTCs and ABS fault light should clear. So hopefully it will be OK after the defective hub is replaced. Good luck.