ABS and traction control lights are on and it shifts hard in the fourth and overdrive

Tiny
JAMES HARRIS2
  • MEMBER
  • 2001 PONTIAC GRAND PRIX
  • 3.8L
  • 6 CYL
  • FWD
  • AUTOMATIC
  • 130,000 MILES
So my ABS light I think is burnt out but is still on, the traction control light is on and the speedometer kind of works after fifty miles an hour but then bounces around. It shifts very hard from fourth to overdrive and it shifts in and out of gear too. The wheel hubs are new with the senors and wires. I had the speed sensor on the transmission replaced and the connector going to it. I do not have a check engine light anymore, but it comes and goes and the codes that do come up. When it comes on is P1571 and that is it. I cannot tell if the ABS module is going bad but I am not sure. Any help will be needed thanks.
Friday, March 10th, 2017 AT 7:50 AM

3 Replies

Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 42,924 POSTS
Hey JAMES,

this sounds like you have a problem with the vehicle speed sensor I would start by replacing it and then clear the codes.

Here is the location.

Please let me know if you need anything else to get the problem fixed.

Best, Ken
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Friday, March 10th, 2017 AT 11:40 AM
Tiny
JAMES HARRIS2
  • MEMBER
  • 2 POSTS
That was all done to the car and still did not do anything.
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Friday, March 10th, 2017 AT 1:07 PM
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 42,924 POSTS
Sorry, I missed the in the post. It does seem like it could be the ABS module because it has to do with the traction control and those modules do go out.

Here is a guide that should help you get it replaced.

https://www.2carpros.com/articles/how-to-replace-a-abs-controller

Please let us know what happens.

Best, Ken

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Friday, March 10th, 2017 AT 1:39 PM

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