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Crashes caused by EBCM failure?

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Old Aug 11, 2013 | 04:43 PM
  #101  
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Maybe I'm missing something here ... but isn't an EBCM failing and the issue with a loose yaw sensor causing the AH to go unexpectedly crazy two separate issues?
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Old Aug 11, 2013 | 04:49 PM
  #102  
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Originally Posted by laurent_zo6
If no one has sent you pic yet you can go to Google images and type: Corvette C5 yaw sensor. Plenty of pics there.
Old thread, but post #3 shows where the yaw sensor is located.

http://forums.corvetteforum.com/c5-t...te-sensor.html
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Old Aug 11, 2013 | 05:15 PM
  #103  
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From Post #27 in this thread:


Document ID# 1750541
2001 Chevrolet Corvette
--------------------------------------------------------------------------------
Subject: Unwanted Active Handling Activation DTC C1282 - keywords ABS active brake EBTCM Stabilitrak #PIC3844 - (01/12/2006)

Models: 1998-2004 Chevrolet Corvette
--------------------------------------------------------------------------------

The following diagnosis might be helpful if the vehicle exhibits the symptom(s) described in this PI.

Condition/Concern:
Some vehicles may have a concern with intermittent unwanted activation of the Active Handling System. The Yaw Rate sensor signal can usually be verified to be changing at the time this occurs. DTC C1282 will likely be present in the ABS module.

Recommendation/Instructions:
Check the Yaw Rate Sensor for a missing or loose "Pencil type" bracket. This bracket is supplemental to the main bracket of the Instrument Panel Carrier and is intended to provide extra support. Without this bracket, the sensor will "bounce" under certain road conditions causing the concern. If the bracket is missing part number 10409133 will need to be ordered and installed to correct the concern.


Please follow this diagnostic or repair process thoroughly and complete each step. If the condition exhibited is resolved without completing every step, the remaining steps do not need to be performed.

GM bulletins are intended for use by professional technicians, NOT a "do-it-yourselfer". They are written to inform these technicians of conditions that may occur on some vehicles, or to provide information that could assist in the proper service of a vehicle. Properly trained technicians have the equipment, tools, safety instructions, and know-how to do a job properly and safely. If a condition is described, DO NOT assume that the bulletin applies to your vehicle, or that your vehicle will have that condition. See your GM dealer for information on whether your vehicle may benefit from the information.
WE SUPPORT VOLUNTARY TECHNICIAN CERTIFICATION

© Copyright General Motors Corporation. All Rights Reserved.

--------------------------------------------------------------------------------
Document ID# 1750541
2001 Chevrolet Corvette


I wonder what this supplemental "Pencil type" bracket to the main bracket of the Instrument Panel Carrier is. Don't really see anything like that in the diagram, but I guess if you were to visually inspect the yaw sensor you'd see what they are talking about in the document above.


Last edited by ZeeOSix; Aug 11, 2013 at 05:20 PM.
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Old Aug 11, 2013 | 08:28 PM
  #104  
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Originally Posted by Dobbinshabby
I actually had someone pull out in front of me on a rainy day and wasnt able to stop because my ebcm failed months ago and I couldn't find a new one.

My tires were locked up FOREVER.
OUCH!

But how did not having ABS make you crash? You wouldn't have stopped sooner with it.
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Old Aug 11, 2013 | 08:38 PM
  #105  
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Originally Posted by lionelhutz
OUCH!

But how did not having ABS make you crash? You wouldn't have stopped sooner with it.
If I'm not mistaken I believe ABS was made for situations like that. Such as ice/snow/rain your tires don't lock up (like mine did)
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Old Aug 11, 2013 | 11:19 PM
  #106  
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You won't stop quicker with aBS. If you couldn't steer around the van then you were screwed anyways. If you could have then you should have lifted your foot off the brake and driven the car instead of just going along for the ride.
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Old Aug 11, 2013 | 11:37 PM
  #107  
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Originally Posted by ZeeOSix
Maybe I'm missing something here ... but isn't an EBCM failing and the issue with a loose yaw sensor causing the AH to go unexpectedly crazy two separate issues?
They should be. Most folks (such as I) who have experienced EBCM failures had nothing happen other than the braking and handling nannies stop working. If this should happen, drive your car as you would an 86 Corvette and you'll be fine until you get the EBCM fixed.
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Old Aug 11, 2013 | 11:38 PM
  #108  
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Originally Posted by Arc07
They won't fix mine since I have the C1255 code.
Couldn't you buy a new EBCM, since you have an 01?
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Old Aug 12, 2013 | 12:30 AM
  #109  
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I'm scared to death now. I have an 01 coupe and it has active handling but nit competitive driving ****. Do I need to just turn the button off for AH when driving down a two lane so it doesn't lock my brakes up and send me left of center. Will turning the button off by the console keep that from ever happening. I have never had a code or an issue. Yet
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Old Aug 12, 2013 | 07:09 AM
  #110  
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I can not believe the replies to this thread. People actually being afraid to drive their cars because of a few unsubstantiated problems. The guy that wrecked because his anti lock brakes didn't work and he didn't have a clue how to drive on slick roads without his 'nanny'.

Jeez guys, active handling applies brakes (actually pulses them like you should do) to a sliding wheel/tire and reduces some throttle., Anti lock brakes pulse your brakes to prevent skidding on wet/ icy pavement. Please do a bit of research on what and how these 'nannies' work before you start to blame these for your inadequate driving abilities. Then go out and do a few auto crosses and high speed closed circuit events to learn about driving a high performance car.

All of us do dumb things, some of us admit it.

end of rant.

Last edited by Phanni; Aug 12, 2013 at 07:14 AM.
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Old Aug 12, 2013 | 07:17 AM
  #111  
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Dave Hill explains active handling


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Old Aug 12, 2013 | 07:20 AM
  #112  
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Originally Posted by Phanni
I can not believe the replies to this thread. People actually being afraid to drive their cars because of a few unsubstantiated problems. The guy that wrecked because his anti lock brakes didn't work and he didn't have a clue how to drive on slick roads without his 'nanny'.

Jeez guys, active handling applies brakes (actually pulses them like you should do) to a sliding wheel/tire and reduces some throttle., Anti lock brakes pulse your brakes to prevent skidding on wet/ icy pavement. Please do a bit of research on what and how these 'nannies' work before you start to blame these for your inadequate driving abilities. Then go out and do a few auto crosses and high speed closed circuit events to learn about driving a high performance car.

All of us do dumb things, some of us admit it.

end of rant.
I am not referring to the OP in 2006. I am referring to the gentleman that said he was driving in a straight line nit braking and he's car suddenly veered left of center. I could care less how good of a driver everyone is in ANY car, if the brake locks up as HE stated it could be catastrophic. You are trying to scorn people and chide them about driving ability when there could be a mechanical failure that caused this. I would hate to be passing a semi head on and my brake decides to randomly tug me left of center. So I ask again, does turning the active handling switch off keep that from ever happening on its own?
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Old Aug 12, 2013 | 07:24 AM
  #113  
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You'd already know if you had read the whole thread....
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Old Aug 12, 2013 | 08:50 AM
  #114  
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GM Recall 10118 2005-2006 (C6 not C5). Sounds similar to some of the Yaw Sensor problems.

http://www.corvetteactioncenter.com/...g#.UgjZpHXlBhc
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Old Aug 12, 2013 | 09:43 AM
  #115  
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Still unclear about what people think GM would even do here if someone did take them to court? Since the OLD GM is no longer around, even suing them will probably get you nowhere except lighter in YOUR wallet. If your afraid of your car, disconnect the EBCM or sell the car-SIMPLE.
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Old Aug 12, 2013 | 09:53 AM
  #116  
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The EBCM has caused more accidents than people may think. But it's not an epidemic either. The C6 also had this problem maybe more than the C5 did from what I've read about them.

A year or so ago a member here posted it happened to him in his C5.

I'm kinda glad mine doesn't work. Now if I could just get that damn light to go off.
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Old Aug 12, 2013 | 09:56 AM
  #117  
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Originally Posted by lionelhutz
You'd already know if you had read the whole thread....
I did read every page. I don't recall anyone saying if you turn of the a tube handling button it will definitely keep the issue from happening. Thanks for the help.
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Old Aug 12, 2013 | 10:28 AM
  #118  
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Originally Posted by RetiredSFC 97
The EBCM has caused more accidents than people may think. But it's not an epidemic either. The C6 also had this problem maybe more than the C5 did from what I've read about them.

A year or so ago a member here posted it happened to him in his C5.

I'm kinda glad mine doesn't work. Now if I could just get that damn light to go off.
"The EBCM has caused more accidents than people may think"

You state that like you have some data or facts that everyone else is unaware of.
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Old Aug 12, 2013 | 11:01 AM
  #119  
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I posted incorrect information and have since deleted it


Originally Posted by lionelhutz
You'd already know if you had read the whole thread....
Why not just answer the guys question if you know the answer??

Originally Posted by Dobbinshabby
If I'm not mistaken I believe ABS was made for situations like that. Such as ice/snow/rain your tires don't lock up (like mine did)
ABS uses wheel speed sensors to determine if one or more wheels are trying to lock up during braking. If a wheel tries to lock up, a series of hydraulic valves limit or reduce the braking on that wheel. This prevents skidding and allows you to maintain steering control. ABS CANNOT overcome the laws of physics....

My EBCM has been out of commission for over a year now. I perfer not having it. My first "fast car" was a daily driven 65 Chevelle with 450+ horsepower when I was 20 years old and no assist anything and I lived...

Last edited by Johnz02Z06; Aug 12, 2013 at 03:34 PM.
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Old Aug 12, 2013 | 12:21 PM
  #120  
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The ABS system pumps the brakes for you like we were taught as kids to do when you start sliding.

First time it happened on my Cadillac it scared the crap out of me. It was in the snow coming up to a stop sign. I've never had it on any other car except my C4.
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