Service traction control
Thread Starter
Pro
Joined: Jun 2010
Posts: 517
Likes: 27
Service traction control
Already did a search...but need more input..I have a 2000 vert...pretty high mileage. Last night I got caught in a flash thunder storm going home and went thru quite a bit of water during the trip...nothing really deep but quite a bit of splashing. Toward the end of the trip, my service traction system warning came on. I figure it would go away once it dried out today...but no such luck. My code is
TCS 1282. I tried resetting. ...but its still there...I also experience some upsetting jerking and pulling of brakes with the tcs on...switched it off and I can drive ok...although the brakes don't feel up to snuff either after this incident. All I was able to find under the search was the yaw sensor...I don't see how water would affect this...in fact I have had the console off several times and never noticed a yaw sensor there. Give me an idea of what to check
TCS 1282. I tried resetting. ...but its still there...I also experience some upsetting jerking and pulling of brakes with the tcs on...switched it off and I can drive ok...although the brakes don't feel up to snuff either after this incident. All I was able to find under the search was the yaw sensor...I don't see how water would affect this...in fact I have had the console off several times and never noticed a yaw sensor there. Give me an idea of what to check
Melting Slicks
Joined: Jul 2012
Posts: 2,507
Likes: 9
Might want to read where the yaw sensor actually is.
http://forums.corvetteforum.com/auto...04-c5-z06.html
http://forums.corvetteforum.com/auto...04-c5-z06.html
Melting Slicks
Joined: Jul 2012
Posts: 2,507
Likes: 9
Under the seat I think is the accelerator. 1282 code may be something else, read this:
http://ls1tech.com/forums/corvette-p...ing-issue.html
If it is the steering wheel position sensor like this post suggests, you may be in trouble, I think it's not available for your year anymore new.
http://ls1tech.com/forums/corvette-p...ing-issue.html
If it is the steering wheel position sensor like this post suggests, you may be in trouble, I think it's not available for your year anymore new.
Last edited by 3boystoys; Jul 15, 2014 at 02:25 PM.
Le Mans Master
Joined: Mar 2011
Posts: 6,835
Likes: 302
From: Columbia SC
The yaw sensor is mounted on the driver side of the metal housing for the radio and HVAC unit at the bottom. There were some issues with movement and there is a clip/retainer that can be had from GM but I don't think that is your issue since it came on and I doubt you were doing high G maneuvers. You may even have it on yours. All my info on it is at home and will try to post it later for you.
Burning Brakes
Joined: Jul 2006
Posts: 763
Likes: 45
From: Long Grove IL
Here's what the service manual has for a description..
Originally Posted by GM
DTC C1282 Yaw Rate Sensor Bias Circuit Malfunction
Circuit Description
The yaw rate bias is calculated by the EBCM any time ignition is present. This value is used to compensate for offsets in the yaw rate sensor output due to temperature changes and manufacturing differences.
Conditions for Setting the DTC
• DTC C1282 can be set any time ignition is present and the yaw rate bias exceeds 7 degrees/seconds.
• DTC C1282 can be set if the measured yaw rate changes by more than 390 degrees/second within one second.
• DTC C1282 can be set if the signal voltage is less than 0.15 volts or greater than 4.85 volts.
• DTC C1282 can be set during an Active Handling event. the EBCM does a comparison between the actual yaw rate and a yaw rate derived from the difference in output from the front wheel speed sensors during an understeer condition or the rear wheel speed sensors during an oversteer condition. If this yaw rate difference is greater than 10 degrees/seconds for more than 60 seconds DTC C1282 will be set.
Action Taken When the DTC Sets
ABS and TCS remain enabled, Active Handling™ is disabled.
• Indicators that turn on:
Car Icon (TCS indicator)
• Messages displayed on the DIC:
Service Active HNDLG
Conditions for Clearing the DTC
• Condition for DTC is no longer present and scan tool clear DTC function is used.
• Fifty ignition cycles have passed with no DTCs detected.
Diagnostic Aids
• It is very important to check the vehicle for proper alignment. The car should not pull in either direction while driving straight on a flat surface.
• When performing the following diagnostic procedure, insure that the vehicle is parked on a level surface.
• It is very important to find out from the driver when the code was set, (when the SERVICE ACTIVE HNDLG message was activated). This information may help to duplicate the failure.
• It is very important that a thorough inspection of the wiring and connectors be performed. Failure to carefully and fully inspect wiring and connectors may result in misdiagnosis, causing part replacement with reappearance of the malfunction. Check connector C102 RH side rear of engine compartment for water intrusion or missing plugs, and that the connector is oriented horizontal to prevent water intrusion.
• It is very important to properly check the 5 volt power supply to the Yaw Rate Sensor. The Yaw Rate Sensor must have at least 4.75 volts, if the Yaw Rate Sensor does not have a stable (not drifting) supply voltage of at least 4.75 volts then DTC C1282 will set.
• An intermittent malfunction is most likely caused by a poor connection, rubbed through wire insulation, or a wire that is broken inside the insulation. Refer to Testing for Electrical Intermittents in Wiring Systems.
Circuit Description
The yaw rate bias is calculated by the EBCM any time ignition is present. This value is used to compensate for offsets in the yaw rate sensor output due to temperature changes and manufacturing differences.
Conditions for Setting the DTC
• DTC C1282 can be set any time ignition is present and the yaw rate bias exceeds 7 degrees/seconds.
• DTC C1282 can be set if the measured yaw rate changes by more than 390 degrees/second within one second.
• DTC C1282 can be set if the signal voltage is less than 0.15 volts or greater than 4.85 volts.
• DTC C1282 can be set during an Active Handling event. the EBCM does a comparison between the actual yaw rate and a yaw rate derived from the difference in output from the front wheel speed sensors during an understeer condition or the rear wheel speed sensors during an oversteer condition. If this yaw rate difference is greater than 10 degrees/seconds for more than 60 seconds DTC C1282 will be set.
Action Taken When the DTC Sets
ABS and TCS remain enabled, Active Handling™ is disabled.
• Indicators that turn on:
Car Icon (TCS indicator)
• Messages displayed on the DIC:
Service Active HNDLG
Conditions for Clearing the DTC
• Condition for DTC is no longer present and scan tool clear DTC function is used.
• Fifty ignition cycles have passed with no DTCs detected.
Diagnostic Aids
• It is very important to check the vehicle for proper alignment. The car should not pull in either direction while driving straight on a flat surface.
• When performing the following diagnostic procedure, insure that the vehicle is parked on a level surface.
• It is very important to find out from the driver when the code was set, (when the SERVICE ACTIVE HNDLG message was activated). This information may help to duplicate the failure.
• It is very important that a thorough inspection of the wiring and connectors be performed. Failure to carefully and fully inspect wiring and connectors may result in misdiagnosis, causing part replacement with reappearance of the malfunction. Check connector C102 RH side rear of engine compartment for water intrusion or missing plugs, and that the connector is oriented horizontal to prevent water intrusion.
• It is very important to properly check the 5 volt power supply to the Yaw Rate Sensor. The Yaw Rate Sensor must have at least 4.75 volts, if the Yaw Rate Sensor does not have a stable (not drifting) supply voltage of at least 4.75 volts then DTC C1282 will set.
• An intermittent malfunction is most likely caused by a poor connection, rubbed through wire insulation, or a wire that is broken inside the insulation. Refer to Testing for Electrical Intermittents in Wiring Systems.
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Drifting
Joined: Dec 2011
Posts: 1,422
Likes: 118
From: San Gabriel Valley California
St. Jude Donor '14-'15
Been there, done that....
Don
Instructor
Joined: Oct 2007
Posts: 168
Likes: 0
From: Highland MI
Today i remove the intake manifold to fix a vacum leak. Finish the repair and start the car and have the Service Active Handling and Service Traction Control...could this be the rain or did i screw something up on my intake manifold r&r?
Le Mans Master
Joined: Mar 2011
Posts: 6,835
Likes: 302
From: Columbia SC
Here is what is at every ground:
http://forums.corvetteforum.com/c5-t...locations.html
Cleaning and locations:
http://forums.corvetteforum.com/c5-t...tion-long.html
http://forums.corvetteforum.com/c5-t...locations.html
Cleaning and locations:
http://forums.corvetteforum.com/c5-t...tion-long.html
Tech Contributor
Joined: Oct 1999
Posts: 41,030
Likes: 9,789
From: Charlotte, NC (formerly Endicott, NY)
Bill
Burning Brakes
Joined: Jul 2006
Posts: 763
Likes: 45
From: Long Grove IL
Some Ox-Gard wouldn't be a bad thing in those splice packs to prevent future issues...
http://www.gardnerbender.com/en/ox-800
http://www.gardnerbender.com/en/ox-800