[Z06] ِABS & Traction control problem.
Thread Starter
Racer
Joined: Jun 2005
Posts: 469
Likes: 2
From: Qatif
ِABS & Traction control problem.
I started the car today after two weeks of not driving it and it said service traction and ABS, so i checked the codes and it said no comunication in the TCS. So what is the problem here? The car is an 04 Z with 32000 on the clock. Any help would be much appreciated.
Drifting
Joined: Oct 2009
Posts: 1,438
Likes: 4
From: Always in my lane.
Its possible that the ABS sensor is going bad. I had ABSfixer repair mine about 2 yrs ago with no issues so far. AND its cheaper than the dealers fix $1500-1800. IF it has to be replaced thats the way to go! $150!!
Advanced
Joined: Aug 2007
Posts: 69
Likes: 0
From: Albuquerque New Mexico
No Communication? That might be a PCM issue. Go to the top of the Tech thread and start reading Bill Curlee's Long Electrical thread. Every C5 owner will need to do it eventually and that is the bible on our electical problems!
Thread Starter
Racer
Joined: Jun 2005
Posts: 469
Likes: 2
From: Qatif
Guys thanks for the input, put my main concern now is why there's no communication with the TCS system? There's some sort of issue causing the no communication other than wheel sensors. If it's a sensor it would trigger a wheel sensor code not a no communication issue.
espz06 i have a code in the PCM i can't remember exactly if it's P856HC or P356HC i could check tomorrow to make sure which one. I searched for the 856 and i couldn't find any info about it however 356 comes as Ignition Control #6 Circuit, so could this be the main issue that causing the no communication?
espz06 i have a code in the PCM i can't remember exactly if it's P856HC or P356HC i could check tomorrow to make sure which one. I searched for the 856 and i couldn't find any info about it however 356 comes as Ignition Control #6 Circuit, so could this be the main issue that causing the no communication?
Advanced
Joined: Oct 2009
Posts: 65
Likes: 0
From: Sweet Home Al
When I changed my shocks, I accidentally left 1 wheel connector unplugged, and got the TCS/ABS codes, and I'm pretty sure I got the no comm. message. Also, if it ran fine last time you drove it, then it sat for several days, and now you've got this problem, I'm inclined to wonder if some wild life hasn't nested in there somewhere and chewed through some wires.
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Thread Starter
Racer
Joined: Jun 2005
Posts: 469
Likes: 2
From: Qatif
Here are my codes:
PCM P0856 H C
SDM U1040 H C
I found this post by RTE61 on the forum having the same problem i am having here, but i really don't know what he did to fix it. I will ask him now.
PCM P0856 H C
SDM U1040 H C
I found this post by RTE61 on the forum having the same problem i am having here, but i really don't know what he did to fix it. I will ask him now.
Last edited by 99MALLETT396; Jul 29, 2010 at 08:35 PM.
Thread Starter
Racer
Joined: Jun 2005
Posts: 469
Likes: 2
From: Qatif
Update.
Well i talked to the guy and here's what he had to say:
I went to this website http://modulemaster.com/en/index.php
and called them they said because of the "no comm" the module probably cant be repaired but if i send it in they would try and if not they could send me a rebuilt one for 250. I'm supposed to get it by fed ex on the 30Th I hope. Mine was dead. Ill let you now after i get and if all is OK"
Today he sent me a PM saying that he got a rebuilt unit from those guys and it fixed his problem, the codes are cleared and no more yellow lights. I am glad his car is fixed and now i am gonna call those guys up and order a unit from them to get mine fixed. Thanks guys for all the help.
I went to this website http://modulemaster.com/en/index.php
and called them they said because of the "no comm" the module probably cant be repaired but if i send it in they would try and if not they could send me a rebuilt one for 250. I'm supposed to get it by fed ex on the 30Th I hope. Mine was dead. Ill let you now after i get and if all is OK"
Today he sent me a PM saying that he got a rebuilt unit from those guys and it fixed his problem, the codes are cleared and no more yellow lights. I am glad his car is fixed and now i am gonna call those guys up and order a unit from them to get mine fixed. Thanks guys for all the help.
Le Mans Master
Joined: Feb 2001
Posts: 6,776
Likes: 358
From: West "By God" Virginia
CI 7-8-9-10 Veteran
I've gotten the same thing a couple of times lately too. It happens when I first start the car after it has been sitting for awhile. Everytime I get it, I turn the car, turn it back on and the "Service ABS and traction control system" message does NOT reapprear??
It's happened twice now I think.
Anyone know why it would come up on initial start, but not come up by shutting the car off and restarting immediately??
It's happened twice now I think.
Anyone know why it would come up on initial start, but not come up by shutting the car off and restarting immediately??
Racer
Joined: Feb 2007
Posts: 488
Likes: 8
From: Datil NM
I've gotten the same thing a couple of times lately too. It happens when I first start the car after it has been sitting for awhile. Everytime I get it, I turn the car, turn it back on and the "Service ABS and traction control system" message does NOT reapprear??
It's happened twice now I think.
Anyone know why it would come up on initial start, but not come up by shutting the car off and restarting immediately??
It's happened twice now I think.
Anyone know why it would come up on initial start, but not come up by shutting the car off and restarting immediately??
A few of the systems on the c5 use junk components and fail. The abs/traction control, column lock and door/window control module are problems almost every owner will have to deal with sooner or later.
Last edited by wildwall; Aug 1, 2010 at 12:00 PM.
