Not surre how I would vent the fittings on the master cylinder other than to pull the cap off and thoroughly bleed the system. I understand what you are doing with the schematic and I am grateful for it. As it stands now the car is at a vette specialist and they are sorting things out. I have a good deal of wrench time but have recognized my limits with this problem and decided to let the pros check it out. I will update the forum as soon as I get an idea of what they have found. Once again thank you very much.
OneKick

 

Sorry about not replying for a long time, the problem was sorted by a "computerized brake bleeding" and turning the front calipers so that the bleeders were up not down as I had them. The first time I have ever had this problem, anyways the brakes are fine except for a slight squeal from the left rear.. My major concern is that the brakes were locked up before the calipers were opened up, I understand the need for bleeding once they were opened up but before? I originally did one wheel at a time so the calipers were hung bleeders up but got put on upside down when I had everything apart for powder coating.
The technician told me there were multiple codes in the computer relating to the active handling system and the abs system. I do have a question, how is this "computerized brake bleeding" done?
Thanks

 

It is done with the Tech II. I've found bleeding them in a X-patern as per the service manual works better.I got my car back from warrenty work and for some reason had a soft pedal.SoI learned to do it myself from the service manual.

 

When the computer systems are messing with the brakes, it should be automatically a mandatory mass recall. Already, I am starting to have the beginnings of regrets for even buying one of these gadget filled cars. If we are having problems now, what are they going to be like in a few years from now. I know the old Chevelles will still be doing fine in their old low tech fashion.

 

A guy was telling me that his active handling warning comes on some times if he has the wheel tilted low where he likes to have it. He found that keeping it higher, he never gets the warning. It sounds like something in the column gets disturbed and doesn't like it.
Personally, I'd like to have the AH/TC tuned out of the computer all together. Is it possible? It's just a goofy marketing scheme anyway. If you need this stuff, there is something wrong with your driving skills/habits.

 

I bought my C6 Z06 in October 2005 (Got screwed on the price can't say how much too embarrased) service active handling comes on every other day. I had the first recall done not sure about the second one they may have done it when the were replacing the nose of the car because the right front wheel locked up going around a corner in the light rain. The *** in snap around on those crapy Goodyears and I jumped a square curb $7000 damage. The left front wheel locked up going around the same F'n corner two months earlier but no crash. I knew there was an issue but I was never that concerned until now. I think I received the recall notice on the same day I had it towed to the body shop.. ( I still love the car though)
Tom

 

I've had my '05 about 11 months now. I have had the Service Active Handling a couple times. This morning while driving through our neigborhood at about 10 mph, and as I went over a speed hump, "ABS ACTIVE" appread, followed by "Service Active Handling", then "Service Traction Control", then "Service ABS". I work 2 miles from my house, so continued on and did not notice anything while driving. When I left for lunch and came up to a stop sign, I got the "ABS ACTIVE" again, but not the service messages.

Any ideas ?

 

I got the same thing a couple of months ago. It turned out to be worn/loose rear wheel bearings. I had about 120,000 miles on the car at that point.

 

purchased my 2005 z51 with telescoping wheel, 35,000 miles on it 3 months ago. The previous owner never used the "exit" feature in the car, and never complained about the "service active handling" coming up.

The car has pretty much given me this message everyday I've had it. I notice it does it more often when I use the "exit" feature where the steering wheel moves in and out.

The other night, I started the car up, and when I would get to about 7 - 10 MPH the active handling would engage and bring me to a stop. The "service active handling" screen never popped up. Just "active handling" to show that it was activating. It did this about 4 times when I shut the car down. turned it back on and haven't had it happen since.

I went to my local dealer about a month ago because I saw a post on here about an official recall and the telescoping wheel. I went there to see if this had been done on my car. Their response was that there is no recall on my car, and that if one comes out I will be contacted by the dmv via mail.

They also let me know, that if I would bring the car..let them fix it, and then a recall does occur on that part i will be refunded my money....

 

My thoughts on this are those wheel bearings must have been smoked to cause the abs issue because they would have had to be loose enough for the exiter ring to come in contact with the generator (sensor) The gap doesn't matter that much It could be .040 or .080 and you would never know but they cannot touch. Or the bearings spit out so much metal that the sensors was covered with it but once again I've come across some that looked like a birds nest and never set a light or code.

I don't know why yet Zwaldo but I think youre right. It is the telescoping wheel somehow. I just realized that (here is where I vent) Since my F--k--g now ex-wife turned into something I thought shew would never be, I have a new lady friend and just about a month ago I set up the exit mode for her and me. YA I let her drive it. I rarely used that feature before and now that I do the service active handling message comes on atleast three times more often than before. I am sure you know GM has a clip that is shoved in the back of the connector for the YAW sensor be cause i have heard at full extention the wire is a toch short and is trying to pull the connector apart. I am going to order on in a few days and put it in. If I see something I will post it. I think there is something wrong with me I'm 51 years old and I still love to melt the hides whenever possible. I roasted them today leaving the gas station, It was great

 

I have heard about a clip that GM will install for the telescoping wheeled cars, but haven't researched it. All i know is that it's like a 10 dollar clip... I also read that it was a recall...but when I went to gm, they had no clue wtf i was talking bout.

as for melting the hides...If you ever get so old that that isn't something you...just due because it's fun...then that's when it's time to retire from life

 

The telescoping steering wheel column issue and the comb for the connector started out as a TSB and then progressed to a formal recall.

I know this for a fact, as I got my car repaired under the TSB, at my cost, and then rembursed for the repair under the recall.

Granted, I'm in Canada but this was for both Canada and the US. If you get the dealer to check your VIN for recalls it should come up. It will also show if the recall has already been taken care of.

As for the bearings, one was a little loose......I noticed that the car wandered at tiny little bit on the highway, but the other one was not as bad. Neither one of them made any noise either. The shop that works on my car, said he has seen this before and it takes very little play to start setting codes. Bearing were replaced with SKF units.

 

 

ugh, been reading through this thread for a while. im still having the issue and it is a PITA. happens a little more frequently now...about once a day after a few miles of driving. Anyone find a solid fix for this or are we all just kinda screwed?

 

You need to purchase the small orange 'afro pick' and insert it behind the steering wheel harness. I did this about 5 months ago and never have seen the service active handling message or brake lockup ever again. I forgot the link, but I think there is a write up link in the first few pages of this thread. Good Luck.

 

I took my car in for the recall a couple of years ago and they put it in. I have seen it when changed my SCL last year so I know its there.

 

The orange afro pick right and not the first fix which was a lame *** zip tie? If so, then you might have other issues.

 

I had the ZIP TIE and the orange pick recall done under warranty BUT,,, the problem came back.

In an attempt to remedy the issue on my own now out of warranty, I disconnected the SWPS connector and slightly bent/repositioned the male pins inside the SWPS connector well. After I carried out this procedure, it eliminated the problem for a long time.

I sold the car so I cant tell you if it ever came back.

 

Hey Guys.. I have an 2007 C6 with this problem.. can someone PLEASE give me advice or a DIY fix for someone who is not that mechanically knowledgeable.. or should I bring it to the dealership.. what is the best bet?? as my traction control system continuously malfunctions while I am turning / pulling out, and once when I was pulling into traffic, and almost caused an accident, as I could not accelerate.

thank you

Andrew Monda

 

Andrew, my experience is that the recall does NOT include the 2007 and newer vettes. Please take the time to report this to the safety board. there are links early in this thread to get to them. below is the recall action I found. good luck and be safe.

Recall Campaign 10V172000 has 1 Related Investigation


NHTSA Action Number: EA09002


Vehicle Make / Model:

Model Year(s):



CHEVROLET / CORVETTE

2005



CHEVROLET / CORVETTE Z06

2005



Manufacturer(s):

General Motors LLC





Component(s):
ELECTRONIC STABILITY CONTROL


Date Investigation Opened:
January 14, 2009


Date Investigation Closed:
May 11, 2010


Summary:
On April 26, 2010, at NHTSA's request following this investigation, General Motors submitted a Defect Information Report to NHTSA to correct a defect associated with the Vehicle Stability Control (VSC) system in approximately 40,000 Model Year (MY) 2005 and 2006 Chevrolet Corvette vehicles (NHTSA Recall No. 10V-172). According to the report, these vehicles may have a problem with the Steering Wheel Position Sensor (SWPS) connector created by a fretting condition in the connector (small movement of the pins back and forth creating a residue build up) which could change the electrical resistance and corrupt the information signal to the VSC computer. The VSC system uses the information from the SWPS to calculate the driver's intended vehicle direction; this information is cross referenced to sensors that tell the system which direction the vehicle is actually going and the system will, if it determines a variance indicating the vehicle is in a over-steer or under-steer condition, reduce throttle control and apply braking to make a correction in vehicle direction towards what the system believes is the driver's intended path. GM dealers will inspect the SWPS connector of recalled vehicles and, if necessary, install a terminal position assurance clip to the connector. GM has advised NHTSA that its position is that the inappropriate activations of the VSC system do not present an unreasonable risk to safety because GM believes that the activations are low in occurrence, a rare set of conditions would need to be present, the driver has the ability to maintain direction control if the alleged condition were to occur, and that there are no reports of injuries. NHTSA does not agree. Based on interviews with complainants and testing performed at the NHTSA Vehicle Research and Testing Center in East Liberty, Ohio, ODI believes that the majority of the unwarranted activations of the VSC system occur when turning, in such scenarios as travelling highway entrance or exit ramps or in street traffic conditions. Complainants report the effect produced by the malfunction of the VSC system is sudden unexpected braking and in some cases a sudden unexpected change in vehicle direction which some complainants indicate was sufficient to cause a movement into an adjoining lane of traffic or in some cases into curbing or stationary objects. During the VSC event the brake lights of the Corvette are not illuminated, depriving trailing traffic from indication that braking is occurring and some complainants indicate the braking effect can be severe and last up to 10 seconds in length. Based on available information ODI counts four crashes due to a malfunction of the VSC system; GM is counting one crash due to the problem. In these circumstances NHTSA believes the defect presents an unreasonable risk to motor vehicle safety, and so advised GM when requesting this recall. This investigation is closed based on GM's recall.