I was at a local drag race this weekend and at 130 plus MPH my front right wheel locked up for no reason. This sent me toward the wall! It then unlocked as I was with in 2 inches of the wall!

I realize there are many threads about this and I have read many of them. From what I have gathered there is still no 100% fix for this?

My plan is to remove the connector to the abs modual. I realize this will render my TC, ABS, and active handling useless but that is fine with me as long as I know this POS can never drive me into a wall for no reason.

 

What mods do you have? over 130 in the qtr pretty fast.

 

Cam, electric water pump, full exhaust, 125 shot, 345/30/19 Nitto nt05r DRs, tuned by me. I usually trap 135 in good conditions.

Car is an 06 A6

I'm not going to race this car again untill I know 100% the car has absoulutely no control of my brakes. If I have to covert everything on this car to an old school set up I will. I never use TC, AH, or ABS for that matter. Thes cars are death traps waiting to happen with this problem.

 

I don't know how you "turn off" the ABS - except by pulling the fuse for it.

If you run with TC and AH off, then it won't intervene.

I suspect that if you had the AH turned entirely off that it must have automatically come back on.

Why would it come back on???

Well....what pressures do you run in your tires? If the tire pressure sensors send the TPMS a low pressure of less than 24 psi, then the AH will come back full on if you are in the Comp mode or have AH turned off completely. It also may pull power and be very sensitive to any sideways movement at all - it's trying to protect you when you try to drive aggressively with a flat tire.

Do you run pressures of close to 24 psi? If so, maybe a sensor got a reading of 23 psi during all the flexing of the tire and the TPMS turned AH back on.

Butt.....maybe you've got a real problem with your AH - the steering sensor, the yaw rate sensor, or some other component.

Let us know what you find out!

Bob

 

Sorry to hear of another near tragedy but glad you got out of it okay.

If you haven't had the connector fix done I suggest you start with that. Then, even if you have already done or after you have it done, check this post for a possible DIY "real" fix to the connector. Please keep us advised.

http://forums.corvetteforum.com/c6-z...lem-fixed.html

 

When will one of the News channels jump on this and make it a big deal????

We have those HIGH HP Toyota Prius Hybrid Cars running away and cant stop and the NEWS is all over the that stupid issue!!!

Someone that this has happened to with all the facts needs to contact 60 minutes or FOX news!

We need coverage! and to be able to SHAME GM into helping us! Otherwise, were just someone to ignor and hope we go AWAY!

BC

 

No everything was off as usual. I also have TQM tuned completely out. This apparently is a pretty common issue. I have found threads and 100s of posts on the subject. There are 2 seperate issues that both seem to relate. Others have the AH message displayed with weird issues of abs an brakes coming on one or more wheels. I have found other threads on here that their problem is EXACTLY the same as mine. Down to even which wheel it is.

At first people thought it had to do with changing tires, wheels, etc. but like the others I had made many passes with no issue untill recent.

I contacted my local dealer about the "unintended brake applicaion" recall. Campaign id # 10V172000 for model years 2005-2006. They claim there is a "reprogram fix". I made an appointment for tomorrow. I will see if this does anything but honestly I would rather the car no longer have any control what so ever.

It's kinda like having a bomb with a motion sensor sitting in the car. Then someone tells you, "this should fix it!" and your supposed to drive around like nothing is wrong.

 

I feel you on this one Bill. There are so many people having problems with the AH/TC/ABS system it's not even funny. Not to mention all the people that are having problems with the steering column lock as well. These two issues should be recalled and fixed. I have both issues on my car and I'm currently working towards a fix for the AH/TC and a bypass for the steering column lock.

The only recall I've heard of that is related to this issue is the one that adds a clip underneath the steering column but this is only for vehicles with the telescopic columns. Yet, in some cases this still doesn't fix the issue.



Before you take it into the dealer see if you can have someone pull all the codes. With a enhanced scanner you can read the codes for the AH/TC/ABS system. Mines hasn't locked up the caliper at those high speeds but I can mimick the problem at low speeds. If I drive say 10MPH and go left then right (kind of like in a figure 8) it will lock up the right front caliper and stay locked even if I try driving straight. It's also happened to me several times when making normal U-turns.

You know, I don't mind having issues with the car. It's all apart of a vehicle aging and wearing out. My issue is with poor designs. It's not like only a few people are having or have had these problems. I can stay here all afternoon and post the name of every single CF member who has had these issues. This doesn't include all the other Corvette owners out there.

 

I have a couple advanced scanners. There are no codes. The light for "service AH" did not come on. After it unlocked it drove and acted like nothing was wrong.

I'm trying to eliminate it any and all brake control but if you try to unplug anything the car wont even start!

I can try to pull the fuse to the ABS but will that also deactivate the AH?

 

Btw, aclose friend of mine has an 05 and his recently did the same exact thing. He said as soon as he let off the gas after a 1/4 mile run it locked up the front right brake.

I am very surprised there is not more info on this matter.

 

After reading this I decided to take a look at the conector and see what the big deal was. Turns out the "comb fix" has already been done on this car by the previous owner. Hmmmmm...so it's obvious that GM has no clue how to properly fix this issue.

 

how can we get this problem to the masses??? Apparently GM does not care at all about the issue. The only way to get GM's attention is to get this thing out to the general public and make some real noise about it.

How does one do that though??

Making noise about it here keeps us vette owners informed...that's about it.

We need to make some REAL noise. GM NEEDS to address this...NOW.

 

I agree! It is unfathomable to me that GM would allow a problem like this to continue like this for years. The recall was just announced less then a year ago and it been going on since late 04!

I'd be willing to bet people have been seriously injured or killed because of this problem but because it is most likely to happen when going fast the people were considered to just be driving too fast. The families wouldn't know any better. Meanwhile GM is staying quiet so as not to alert the 100s of people who have already had the problem or people with the potential to have the problem.

Honestly even if they come up with a true fix it would not be good enough for me. After my experience I will never feel safe in this car again unless there is no longer any computer controlled brake corrections.

If anyone knows of a way to remove TC and AH please let me know!

 

First, if anyone has a problem that they believe is a safety item, then they need to contact the https://www-odi.nhtsa.dot.gov/ivoq/ and file a complaint.

 

I just saw a post by a guy on a C5R race team and he claims this has happened on many C5s as well. He also let me know how to make sure it will never happen again. This can be done by simply disconecting the wheel position sensor. At least it worked for the C5s. Obviously this will turn on some lights but atleast it will keep you from see the light to early in life!

I can live with the lights noooooo problem! As long as I know the car will no longer lock my brakes up I'm happy!

 

This is crazy interestingly enough I've never seen such a thing happen at a HPDE. The speeds there are really high and the braking and turn happen quickly and often. I wonder what the difference is other than tires.

 

Most likely it's just that the cars are still new. Most cars dont act up for a while and all the cars after 08 come with the comb fix already. So it may take a while for it to happen. However there is a youtube video of a guy at Laguna Seca (sp) that wipes out because of this exact reason. Luckily he didnt hit anything.

Btw, I looked at the complaints filed on the DOT site and turns out there is well over 100 on file just for the 2006 models! A few resulted in serious injuries. One of which was very ad to read. A father was complaining that his son had crashed after bringing his car in a number of times to get his "service active handling" issue fixed. The crash inflicted major head trama and resulted in brain damage!

I am going out to unplug my WPS now.

 

The ABS, AH/TC system all work together so by messing with one it might effect the other. If only there was a way to edit the actual EBCM unit.

I don't mind the unit at all as long as it's working good. It saved my a$$ once.

That's a good temporary fix but it's only a band-aid. I don't think anyone here bought a 60K to have the cockpit look like a christmas tree filled with warning lights.

 

One way to go about this would be to write a letter to GM about the problem, copies of the complaints already filed and maybe even send a few video clips of the system going crazy. If that doesn't get us anywhere we can always try filing our own claims and see where that gets us.

I at least would want to give GM a chance to fix-it or make some sort of attempt. If no help is found then the media is not hard to get a hold of. Trust me, the media is always looking for a story.

Just my .02 cents

 

Well luckily the only light that stays on is the TC light (little car light). So it just looks as if I have TC turned off. I'm pretty happy with this. I don't do any road racing so I could careless about the AH or TC. Well I wouldn't mind having the AH for rainy days and I'm out on drag radials but I would rather live with that then have to worry about the next time my car decides to try and kill me.