"TRACTION SYS ACTIVE" WTH???
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Le Mans Master
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From: Land of Sky Blue Waters
"TRACTION SYS ACTIVE" WTH???
Hi, all. I was driving down the highway today and got to about 50 MPH. Even though I was giving it more gas, it was losing speed. At the same time, I got the "traction sys active" DIC message. Just today I had the red Z06 calipers installed. Related, do you think? And should I not be driving it at all? Thanks much for any info anyone can offer.
Race Director
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From: HOW FAST WAS I GOING OFFICER? Los Angeles Hating GM Dealership Service Dept.'s Since Sept. 2004
St. Jude Donor '04-'05-'06-'07
That sometimes happens with battery going bad.
Do you still have you AC Delco?
How old is it?
When's the last time you checked to see if it was leaking, etc. (By check I mean lift it and see if it's leaking underneath)
Do you have A4 or M6? What year?
Do you still have you AC Delco?
How old is it?
When's the last time you checked to see if it was leaking, etc. (By check I mean lift it and see if it's leaking underneath)
Do you have A4 or M6? What year?
Thread Starter
Le Mans Master
Joined: Oct 2001
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From: Land of Sky Blue Waters
It's a new battery. Red top. My car's an '02 manual. Even if it was the battery, it's still odd that's it's limiting speed, isn't it?? Thanks for the reply. Appreciated.
Race Director
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From: HOW FAST WAS I GOING OFFICER? Los Angeles Hating GM Dealership Service Dept.'s Since Sept. 2004
St. Jude Donor '04-'05-'06-'07
Not really. With all the computers these cars have, any power drain/loss makes it act up.
How long ago did you install the new batt? Sometimes the system takes a couple of days to adjust to the new batt. I've heard this happen too.
I just hope it isn't a precursor to Column lock or something.
How long ago did you install the new batt? Sometimes the system takes a couple of days to adjust to the new batt. I've heard this happen too.
I just hope it isn't a precursor to Column lock or something.
Le Mans Master
Joined: Oct 2002
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From: Tampa FL
Originally Posted by Postergeist
Hi, all. I was driving down the highway today and got to about 50 MPH. Even though I was giving it more gas, it was losing speed. At the same time, I got the "traction sys active" DIC message. Just today I had the red Z06 calipers installed. Related, do you think? And should I not be driving it at all? Thanks much for any info anyone can offer.
Originally Posted by Postergeist
It's a new battery. Red top. My car's an '02 manual. Even if it was the battery, it's still odd that's it's limiting speed, isn't it?? Thanks for the reply. Appreciated.
Thread Starter
Le Mans Master
Joined: Oct 2001
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From: Land of Sky Blue Waters
Thanks for taking the time to help me. The battery was installed last fall - probably has 1K miles on it, then the car went into storage. So for all intents and purposes, the battery is new. Haven't had a problem with it.
I've had the CLB installed, so that won't be a problem. Only thing I've had done (today) was the new calipers and Borlas installed. I'm thinking it might have something to do with the caliper change-out???
I've had the CLB installed, so that won't be a problem. Only thing I've had done (today) was the new calipers and Borlas installed. I'm thinking it might have something to do with the caliper change-out???
Race Director
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From: HOW FAST WAS I GOING OFFICER? Los Angeles Hating GM Dealership Service Dept.'s Since Sept. 2004
St. Jude Donor '04-'05-'06-'07
I owe you an apology. I mis-read the issue. I thought you said Service Trac System ... I'm with Neabs. Sorry.
Le Mans Master
Joined: Oct 2002
Posts: 6,772
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From: Tampa FL
Originally Posted by MyVetteDream
I owe you an apology. I mis-read the issue. I thought you said Service Trac System ... I'm with Neabs. Sorry.
Originally Posted by Postergeist
I've had the CLB installed, so that won't be a problem. Only thing I've had done (today) was the new calipers and Borlas installed. I'm thinking it might have something to do with the caliper change-out???
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Thread Starter
Le Mans Master
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From: Land of Sky Blue Waters
Originally Posted by Neablas
when the tires slip, the traction control system kicks in and displays *traction sys active* ... How much gas were you giving it? and how were you driving?
Thread Starter
Le Mans Master
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From: Land of Sky Blue Waters
Originally Posted by MyVetteDream
I owe you an apology. I mis-read the issue. I thought you said Service Trac System ... I'm with Neabs. Sorry.
Thanks very much for trying to help.
Premium Supporting Vendor
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From: Manassas Park VA
St. Jude Donor '07-'08,-'13-'14, '16-'17
Sweep the codes and let us know what codes you are getting...
Here is a link that will help...
http://www.stengel.net/diccodes.htm
Peace
Willfulone
Here is a link that will help...
http://www.stengel.net/diccodes.htm
Peace
Willfulone
__________________
..................Click for
..................Click for
Last edited by CCA Corvette Parts; Mar 24, 2005 at 09:52 PM.
Thread Starter
Le Mans Master
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From: Land of Sky Blue Waters
Hi, Willfulone. I'm not Jim, but thanks for the suggestion. I'm actually a female. :o I went out and pulled the codes:
Module A0-LDCM: B2282, B2284, B2262, B2264, U1255, U1064, U1016 and U1096. Module A1-RDCM: B2283, B2285, U1255, U1064, U1016 and U1096. They all had "H"'s after them.... historical codes, not present? Or do they turn into H's after you've scrolled through once? I had to go through them twice to catch all the numbers.
I took the car out and turned traction control OFF and it's okay. When I turned it on, I had the same problem. BUT! I have my tire sensors out because I've got custom rims/tires...so I still get the annoying codes about tires being flat. Maybe it's decided it won't allow me to go over 55 now (like the DIC flashing messages says)?
Thanks very much!!
(Ooops! Sorry. I see you caught the "Jim" error.)
I'm not Jim, but thanks for the suggestion. I'm actually a female. :o I went out and pulled the codes:Module A0-LDCM: B2282, B2284, B2262, B2264, U1255, U1064, U1016 and U1096. Module A1-RDCM: B2283, B2285, U1255, U1064, U1016 and U1096. They all had "H"'s after them.... historical codes, not present? Or do they turn into H's after you've scrolled through once? I had to go through them twice to catch all the numbers.
I took the car out and turned traction control OFF and it's okay. When I turned it on, I had the same problem. BUT! I have my tire sensors out because I've got custom rims/tires...so I still get the annoying codes about tires being flat. Maybe it's decided it won't allow me to go over 55 now (like the DIC flashing messages says)?
Thanks very much!!
(Ooops! Sorry. I see you caught the "Jim" error.)
Premium Supporting Vendor
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From: Manassas Park VA
St. Jude Donor '07-'08,-'13-'14, '16-'17
You can clear all those codes...they all look like battery related codes or loss of communication codes due to the battery...
I would say that you are having the issue because you don't have tire pressure sensors. The car is acting like you have a flat and limiting the top speed of the car...
Good luck
Peace
Willfulone
I would say that you are having the issue because you don't have tire pressure sensors. The car is acting like you have a flat and limiting the top speed of the car...
Good luck
Peace
Willfulone
Intermediate
Joined: Mar 2005
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From: Rochester MI
I develop software for traction control systems and changing your calipers would not cause the issue you are describing. The only negative effect of changing to the Z06 calipers is your TCS system may be more "brakey". This would be because the volume consumption (the amount of brake fluid displaced) could be off as well as the pressure model. The pressure model is a model used to estimate the amount of brake pressure needed to reduce wheel slip. Since the Z06 caliper is more aggressive, a request by your TCS system may request 50 bar of brake pressure but your actual pressure with the Z06 caliper might be 70 bar causing the TCS system to feel rough. The problem you are describing I have never heard of. If you are reducing engine torque and not spinning your wheels you are falsely detecting wheel slip. Not likely the problem, but if you changed your tire/wheel size your calculation of your TCS reference speed could be off at higher speeds
Thread Starter
Le Mans Master
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From: Land of Sky Blue Waters
Wow! VERY interesting information, 007. Many thanks....and thanks to you, too, Willfulone. I'm going to print out your response, 007, and show it to the guy who works on my car. As an aside, I changed the rims to 18's all the way around.
One last thing: I'm not damaging anything by driving the car this way, am I???
One last thing: I'm not damaging anything by driving the car this way, am I???
Advanced
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From: San Francisco CA
A year ago, I replaced the stock C5 wheels and calipers for Z06 gunmetal wheels/goodyear supercar tires and Z06 calipers. Prior to the above modifications, I had the ABS Service Soon - Service TCS ... DIC come on. My mechanic reset the system and it went away.
Now, a month ago, I replaced the ac delco for a red optima battery. Once again, the ABS service soon ... in the DIC is back on. But this time, I think that I probably used too much tire dressing and got the abs sensors dirty.
I drove the car today and the problem could not duplicate. I guess the sensors are too sensitive thus causing the system to provide a wrongful reading.
Hope it helps
Now, a month ago, I replaced the ac delco for a red optima battery. Once again, the ABS service soon ... in the DIC is back on. But this time, I think that I probably used too much tire dressing and got the abs sensors dirty.
I drove the car today and the problem could not duplicate. I guess the sensors are too sensitive thus causing the system to provide a wrongful reading.
Hope it helps
Pro
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From: Putting a 50¢ sticker of the U.S. Flag on a $50,000 import does not make one a patriot.
I would bet the slipping at 50 trying to accelerate has to do with the tire pressure sensors not communicating with the PCM. As stated before.
I have been told by a forum tuner that putting the same size rim and tire all the way around can cause the ABS system to act funny.
Maybe it is a combination of these two things that are causing your problems.
AZC5
I have been told by a forum tuner that putting the same size rim and tire all the way around can cause the ABS system to act funny.
Maybe it is a combination of these two things that are causing your problems.
AZC5
Burning Brakes
Joined: Jun 2004
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From: St. Robert Missouri
Originally Posted by Vette007
I develop software for traction control systems and changing your calipers would not cause the issue you are describing. The only negative effect of changing to the Z06 calipers is your TCS system may be more "brakey". This would be because the volume consumption (the amount of brake fluid displaced) could be off as well as the pressure model. The pressure model is a model used to estimate the amount of brake pressure needed to reduce wheel slip. Since the Z06 caliper is more aggressive, a request by your TCS system may request 50 bar of brake pressure but your actual pressure with the Z06 caliper might be 70 bar causing the TCS system to feel rough. The problem you are describing I have never heard of. If you are reducing engine torque and not spinning your wheels you are falsely detecting wheel slip. Not likely the problem, but if you changed your tire/wheel size your calculation of your TCS reference speed could be off at higher speeds
Damn - Wish I had said that. 007, you 'da man 
Thread Starter
Le Mans Master
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From: Land of Sky Blue Waters
We've got a couple pretty decent tuners up here and I just spoke to one of them (Shawn Hanna). He's of the opinion that the "new" tire size is throwing the computer off. He got far more technical (and it actually made sense!), but I can't remember it. Hehehehe. In essence, the computer's sensing there is a problem with the tire width and reacting accordingly (by limiting speed). I had 18's put all the way around last year with 275/40's in the front and 275/35's in the rear. (Odd I didn't have this problem last year.) Short version: The computer likely needs re-programming to "accept" these new tire/rim sizes. So Doug Rippie's shop will have to do that.
(P.S. 007, I really appreciate you taking the time and effort to share the information.)
(P.S. 007, I really appreciate you taking the time and effort to share the information.)
Last edited by Postergeist; Mar 25, 2005 at 09:09 AM.