Finally took mine in. I had two codes for Wheel speed sensor....

They cleared it and couldn't re-create the code. I'll have to see if I ever get it again. So far so good.

- Bryan

 

If you had this problem while under warranty and you took it in for repairs, I'd think GM needs to make it good even if your warranty is expired now.

 

Yeah you would think so but no luck so far. I haven't pushed about it yet, but I'm hoping they would address it further.

 

I've been getting the same STC, SAH, ABS DIC warnings with a 2006 vette off and on for a few years now. Mine is a non-telescoping Z51 and has been into the GM dealers a number of times for the SAH, STC, etc. and they cannot seem to get if fixed.

The BCM, ECBM modules have been replaced and supposedly all the grounds and cabling between the modules have been checked and metered.

I see where most of you get the warnings and replaced a multitude of parts but no codes have been listed.

Would it be helpful to list the codes to perhaps establish a pattern on these warnings?:

Most all of mine have been communication codes, I'll start:

P0700 Transmission Control Module (TCM) Requested MIL Illumination ECM
U0073 Control module Comm Bus Off
U1024 Lost Communications with Transmission Control Module (TCM) DDS, DDM, DPM, FTC,
U1017 Lost Communications with Engine Control Module (ECM) DDM, DDS, DRR, FTC, HVAC
U2100 Controller Area Network (CAN) Bus Communication ESC, BCM, EBCM, TCM
U2108 Lost Communication With Electronic Brake Control Module (EBCM) BCM, ESC, TCM
U2106 Lost Communication With Transmission Control Module (TCM) BCM, EBCM
U2105 Lost Communication with Engine Control Module (ECM) BCM, EBCM, ESC, TCM

 

Did you get all of these codes at the same time or are these representative of codes you have seen over time? Usually communication codes don't mean a lot. The various modules on the serial bus continously send state of health messages to each other. Due to electrical noise or other issues that happen in the automotive environment some of the messages don't through and the receiving module sets a communication code. The next time the message is sent it gets through but the code isn't reset. Most cars will have several of these codes set when somebody scans the system for codes.

On the C5s and I suspect on the C6s when you get a bunch of codes at one time that indicates there could be an issue with system voltage and the battery and its connections need to be examined.

By the way there are quite a few codes that can drive a Service AH, Service TC or Service ABS message. A large number of them have nothing to do with what generated the recall. Confusing them with the recall and the TSB can do more to delay a correct repair than anything else.

Bill

 

The SAH and STC warnings have often come on, sometimes the ABS, SES and lock icons as well. Of course they have always reset and when I take it into the dealer they can't reproduce the problem.

So, the last time in, the car had the SAH, STC, ABS, ses and lock icons illuminated. The delaer happened to be open and I dleivered the car to the service department with everything lit up. It also went into limp mode. It was in the shop 2 weeks while they spoke to engineers, etc.

Yes, these are the codes they seeme to pull up all the time, no hardware malfunction codes. They installed the EBCM and were instructed by the engineers to hard solder each pin. Well, 400 miles later and I have the SAH and STC warning again.

This happended with the factory battery from 06-09. I installed a new Optima red top in 09.

 

Well you can add me to the list or club
My 2007 auto/base LT1 with 38,600 miles just got the SAH warning. It came on about 2 months ago... I did the plastic pin fix that GM sells and it went away for a shot time. Now it's back and I can't get rid of it. I went in there and un pluged and pluged all the connectors many times and it still comes on after just a few miles down the road.

1) It happens mostly in slow turns as in braking, but it has happen in str8 line braking too but not as often.
2) A friend said the brake lights looked like they stayed on when the SAH came, even though I was no longer on the brakes
3) I have not had any problems with the brakes coming on and locking... YET
4) When I turn the car off and restart it... SAH light goes out but comes back on a few miles down the road with SAH warning on the DIC

I think I will first try to replace the SWPS, and the Cable next.

Man who ever comes up with a permanent fix for this will make a lot of MONEY !!!

 

I am taking delivery of a new 2010 C6 on monday, is this somthing I should be concerned with or have the dealer perform any specific TSB before I take it?

 

Im taking deliverly of a 2011 26 Oct. If I have this issue,,,,, Im going to be beyond pissed.

For my 06 Coupe, I used a dentil pick and bent the SWPS pins rearward a little so it makes better contact inside the connector. It has not had ANY issues for four months. Give that a try and see if it helps.

BC

 

This just happened to me this past Saturday and thank god I was only going 15mph.........

I didn't have a clue what was going on until I read this post. I have filled out all forms.

jeff

 

So i have been reading many threads and came across this one. My buddy has an '06 which I remember having been recalled a few months back. I just had my '07 Z51 dyno'd. The Tech said give it a few miles and the traction control message will go away. I am now wondering if the message had anything to do with this threads problem or was it due to the dyno test?? Any thoughts here?

 

I now wonder is it even safe to Dyno this car??

 

Should have read the DTCs to be sure what was causing the issue.
Most likely due to the REAR wheels rotating and the Fronts were not. That will throw a speed sensor error and you will get at messages.
He is correct. Most of the time just cycling the ignition ON and OFF will clear EBTCM DTCs.

A good WOT romp on the highway is no more hard on the car than a Dyno. Whats the big deal?

Bill

 

no luck yet but there is a recall for certain 06 models. Taking it to the shop today.

 

I've sent my info in through the site. Car's been in 3 times. Last time they checked the clip and made sure everything was done right. Two hours later the ABS engaged. Luckily I was only doing 10mph trying to cross a four lane highway!
Car went back in Saturday and is still there. The dealer can replicate the ABS locking but it's not throwing any codes and the recall was done correctly, so they continue to search.

 

I took it to a Chev. dealer and they looked up my VIN number and said it wasn't one on the list for recalls. Now I have to take it in and leave it for them to run a check on it. Thanks for all the suggestions and comments on this subject. At least it sounds like it not one of those isolated issuses.

 

Just found this thread but unfortunately the OP was not clear at all about what this issue is or what happens so I am still in the dark. I did get the message on my 08 C6 with about 6000 miles on it. Drove it like that for a couple months before I finally got it into the dealer but didn't notice anything happening but the message.

This is one of three things I don't like about the car. I don't need no stinking active handling, I don't need anti-stop err lock brakes and I don't need the window to drop down and go up every time I open the door. All bull**** that adds complexity and point of failure to an otherwise great car.

One window mechanism broke and had to be replaced, it stopped going all the way up.

As with my last 3 cars that had anti-lock brakes, they INCREASE the stopping distance at low speeds when you nail the brakes and it activates. That's why I call them anti-stop. I have been driving long enough and with enough cars that didn't have anti-lock to know how far it takes to stop and anti-lock brakes at 30 mph or less take longer to stop than locking the brakes and skidding does without it. I have been trying to get the myth buster idiots to test this but they haven't. Probably afraid of opening that can of worms for the big 3. I know I'm gonna get flamed for this heresy but I'd bet my life it's true and I have had a lot of vehicles without it. It may be great at high speeds, don't know, but at low speeds it's worthless and dangerous. I've almost had several rear enders when the car just kept going instead of stopping like it would have if the front wheels were locked up.

 

@Joe camel - might want to read all 19 pages of this thread. Good info. Not to mention the OP is the one who went to DOT and pushed this thing last year.

 

Joe

I 54 and been driving since I was 16. The NEW ANTI LOCK & ACTIVE HANDLING systems make 60's, 70's 80's and 90's braking systems look like the FLINTSTONES. If you "FULLY" understand how they work and IF there working properly they are phenomenal!

I think the MYTH BUSTERS would have their work cut out for them to prove the OLD SCHOOL stuff better.

When you own a C5 or C6 and you can PLANT your foot to the floor and have the car stop straight and in a MINIMAL DISTANCE, you have it made in the shade.

I drive my cars VERY HARD and have put the braking system thru some severe situations and it has worked 100% without failure.

My 02 Z had a EBTCM, DTC 1214 and was replaced under warranty but other than that,,,, NO ISSUES!

 

Mine gets the STC all the time. Probably 3 times a day.

When I go over 100 mph traction control comes on and pretty much holds me to 100-110.

Sometimes the airbag light goes on from a higher speed run, like when I run her through 4th.

Never had active handling problems though, just traction control.