Stabilitrack light comes on during light cornering
Thread Starter
Instructor
Joined: Jul 2007
Posts: 158
Likes: 18
From: Washington state
Stabilitrack light comes on during light cornering
I’m having some issues with my 2016 corvette zo6. When I do some light cornering I will get my stabilitrack light coming on my dash & the computer engages one of the front brakes right or left depending on which way I’m turning. This occurs in touring mode & sport mode & will kick in right at .4 g’s. Tires are at 30 psi & are warm. Ambient temp was 79 degrees. Any guesses?
Moderator, Tech Contributor
Joined: Sep 2013
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From: Cape Coral, Florida
I’d be looking at your front wheel speed sensor connectors and look for any pin fitment issues or any other wiring issues…this is only a guess !!…also possibly the multi axis acceleration module…this is only a guess too…I believe that’s what the C7 uses…best thing is to find someone with a scan tool and scan for DTC’s.
Thread Starter
Instructor
Joined: Jul 2007
Posts: 158
Likes: 18
From: Washington state
I’ll inspect these connections this weekend & see if I notice anything obvious. I don’t have any codes however as I scanned it already. The stability rack light comes on at .4g’s then goes out once it drops below .4g’s. Hopefully it’s just a wheel sensor. I see a trip to the dealer in my future. 😟
Moderator, Tech Contributor
Joined: Sep 2013
Posts: 15,626
Likes: 4,069
From: Cape Coral, Florida
I’ll inspect these connections this weekend & see if I notice anything obvious. I don’t have any codes however as I scanned it already. The stability rack light comes on at .4g’s then goes out once it drops below .4g’s. Hopefully it’s just a wheel sensor. I see a trip to the dealer in my future. 😟
Last edited by C5 Diag; Sep 16, 2022 at 10:22 AM.
Thread Starter
Instructor
Joined: Jul 2007
Posts: 158
Likes: 18
From: Washington state
Moderator, Tech Contributor
Joined: Sep 2013
Posts: 15,626
Likes: 4,069
From: Cape Coral, Florida
You can’t figure out what’s wrong by nothing “looks” damaged !!…that’s not how you diagnose what’s wrong…like I mentioned you have to remove the connector at the sensor and look for loose terminals…I don’t know what electrical skills you possess or the tooling you have so I won’t get into that right now…the short sensor harness that comes out of the wheel hub flexes when the wheels are turned and that is when you are having your issue that is why I was saying it “could” be a wheel speed sensor…without at least a scan tool and a DVOM you’ll only be guessing…and I don’t like to guess.
Thread Starter
Instructor
Joined: Jul 2007
Posts: 158
Likes: 18
From: Washington state
My approach is start with the easiest which in this case is looking for a frayed wire where something has been rubbing, because if I find that I can most likely save a lot of time & effort troubleshooting other things. Now yes it is time to move on to the next step. I have a scan tool but it is not throwing a code, rather the stabilitrack system seems to be stepping in prematurely basically just doing it’s job just not when it’s suppose to. As far as electrical experience I do happen to be an electrician by trade however I don’t own an oscilloscope. I’m not sure any of that will do me any good as long as it continues to work flawlessly. I need to drive it more to let the problem either develop or get a better idea on what conditions make it fail.
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Moderator, Tech Contributor
Joined: Sep 2013
Posts: 15,626
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From: Cape Coral, Florida
Don't know what kind of scan tool you have but if it can "graph" your speed sensors while driving you may be able to see a glitch in the signal...with the right scan tools you can observe those sensors along with the steering angle sensor and multi axis sensor...these may also be a cause...without any DTC's set it may be difficult to diagnose.
Cruising
Joined: Mar 2021
Posts: 10
Likes: 1
From: Toronto, Canada
Use the GM GDS scantool or an Autel scanner to read the ABS code, it will tell you which wheel speed sensor is sending out of range values. It is most likely caused by a loose connector where the wheel speed sensor harness plugs into the chassis.