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Abs, check engine, and low trac lights come on 2004 Pontiac grand am

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  • 3 Answers

Check wireing from wheel to harness, front both sides.I found a bad wire on my left side.

Posted on Jun 12, 2010


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Posted on Jan 02, 2017

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SOURCE: problem with my pontiac 97 grand prix

I suspect that your problem lies within the vehicle's ECC (Engine Control Computer). Prior to replacing it or having it tested, I would try re-setting it. You can do this by pulling the fuse (for good measure) to the ECC and disconnecting the negative battery terminal for thirty seconds.

During the time you have the power disconnected to the ECC, I would go ahead and check all the connections (make sure they're not only connected firmly, but also free of corosion). Electronic connector cleaner and a soft bronze brush (available at electronic supply stores) can be used to clean the connectors if necessary. After cleaning the connection, coat the wire ends with dielectric compound if it was used previously.

I believe the ECC for your vehicle is mounted under the hood on the passenger side wheelwell (front side of the strut tower).

Hope this helps and good luck!

Posted on Jan 12, 2009

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SOURCE: engine bogs down at 3500 rpms and low trac and or abs light comes on

You are spinning your tires ... read your manual ... shut off the traction control .... spin away!

Posted on Apr 30, 2009

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SOURCE: i have a 2000 pontiac grand am gt - the abs, low

the most common thing that causes this problem, other than spinning in mud, is a wheel speed sensor. the best thing for you to do is get your car scanned. autozone offers free scanning. i have seen many hub bearings go bad, come loose and cause this. if the problem comes and goes the hub is likely the culprit. i have also seen cracked abs rings cause this at higher speeds, i have also seen the harness running to the rear wheels torn out from running over tree limbs. i would definitely start with a scan to narrow down possibilities and save you money done by guess work. you can try jacking up each wheel and shaking to ensure that all bearings are tight. if you have access to a oscilloscope you can backprobe each sensor while spinning the wheel and find which one is breaking down.. hope this was helpful... dustang

Posted on May 09, 2009

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My pontiac grand am has the abs light on, service engine light on, and off trac light on when the car is running

Sounds like water got into the access plug or ..... into the on board computer. On Pontiac's they are usually located to the left of the glove box

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I have a 2000 pontiac grand prix... The Abs

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Service Vehicle soon trouble light comes on, along with ABS light and Trac Off light, but no diagnostic codes show up on diagnostic reader. How do you determine what is wrong?

If you are using an obd2 reader, make sure it has all the updates. If the check engine light is on, is should show up on reader. There is also a ABS light tester as well. It sounds like an error in the ABS/Trac cirucuits. It could be a bad pump or faulty module.

Jul 06, 2009 | 2004 Pontiac Grand Am

2 Answers

Abs light, trac light, service engine soon light 2001 Pontiac Grand Am

Sounds like you have a bad wheel speed sensor. You need to have it scanned. Since it's been sitting, it might just be a bad connection to one of the speed sensors.

Jun 01, 2009 | 2000 Pontiac Grand Am GT

1 Answer

Engine bogs down at 3500 rpms and low trac and or abs light comes on

You are spinning your tires ... read your manual ... shut off the traction control .... spin away!

Apr 17, 2009 | 2000 Pontiac Grand Am GT

1 Answer

2004 pontiac grand am gt

"...should not have to have to deal with these issues"

Agreed! But, there seems to be a glitch involving the ABS and TRAC system. On my 99 GAGT, when the eng and tranny are cold, I tend to get an ABS fail during turn/brake instances. If I restart the engine, it generally goes away. I've done a bit of research and have found nothing that fives a definitive answer to this. If you take it to the dealer, it will cost an arm and a leg for the troubleshooting alone. I'd recommend driving it as is provided you can get the ABS to reset by restarting the engine.
Sorry I can't provide any better solution...

Aug 26, 2008 | 2004 Pontiac Grand Am

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