Question about 2005 Pontiac Grand Prix
3 times in 2 days, on start up, I would get 3 warnings. ABS failure, Traction controlfailure,and Variable effort Steering failure. Upon restart,it would be fine. The 4th time I could not "reset" it. The steering is noticably not working right, and the traction control and ABS are all non-functional.
If it was a fuse........the problem would not have "reset 3 times previous to failure.
Ruling out fuse.
Im thinking an encoder on one of the front wheels. An encoder there, I would think, would need to communicate with all 3 of those systems to function properly, resulting in all 3 failures being reported at the same time.
I would guess a "no signal" from the encoder, the computer will abort all systems downstream of that sensor.
Am I going down the right path here?
This light is usually caused by a problem in the ABS system. A problem in the ABS system will dissable the traction control system. you will need to have the computers scanned for trouble codes.
Posted on Jan 04, 2009
The traction control system is controlled through the Anti-lock brake system. The way it works is if one of your wheels starts spinning the ABS applys the brake to that wheel to transfer power to the oppsite wheel that is getting traction. If your ABS is bad then your Traction control won't work. To check it I would find a parking lot on a wet day. In an open space mash in the gas. if you hear the ABS system kick in and you don't squall the tires then your good. My guess is you won't. What I would be worried about is will my ABS work. When checking the traction control is a good time to check the ABS. Acclerate to around 15 mph, then mash the brake as your live depended on it. If you hear a motor run and feel a vibration or grind in the brake peddal, then it works.
Posted on Jan 09, 2009
SOURCE: traction conrol abs
Try seeing if any of the codes are set off. On your climate control section with the ignition on hold the off and warmer button and the display will cycle through the codes. Could be a wheel sensor I had a c1225 LF sensor. Could also be a problem with the Wheel speed sensor harness see TSB# 0005-25-003. When I called my dealer about this TSB they didn't know anything about it. If you shut off the car and disengage the traction control, in the glove box, do the codes go away?
Posted on Jul 01, 2009
SOURCE: My ABS, traction control, and
Hi, the wheel speed sensor and tone ring are built into the bearing/hub assembly. Make sure the new hub contains an ABS wheel sensor and the cable was properly connected. If it is properly connected, the new hub may be defective.
Posted on Apr 19, 2011
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