[Z06] CEL and "Service Traction System"
11-02-2011, 11:38 PM
#1
Team Owner
Thread Starter
CEL and "Service Traction System"
Since my new motor was installed I have been getting CEL with the Traction Light and DIC "Service Traction System"
The Throttle Positon Sensor was replaced as the OBII indicated that was the reason the car was running rough and tripping CEL and DIC messages.
The car now runs smoothly but the CEL/DIC keeps coming back. It seems like it takes about 30 miles of driving to trigger the event. The car was road tested a few times by dealer and all seemed fine, but they only drive it about 10 miles.
I am able to place the car in Comp Mode while the CEL and DIC are displayed.
So does anyone know what the problem is?
Is the car safe to drive at the track in this condition??
DH
The Throttle Positon Sensor was replaced as the OBII indicated that was the reason the car was running rough and tripping CEL and DIC messages.
The car now runs smoothly but the CEL/DIC keeps coming back. It seems like it takes about 30 miles of driving to trigger the event. The car was road tested a few times by dealer and all seemed fine, but they only drive it about 10 miles.
I am able to place the car in Comp Mode while the CEL and DIC are displayed.
So does anyone know what the problem is?
Is the car safe to drive at the track in this condition??
DH
Last edited by Dirty Howie; 11-03-2011 at 11:15 PM.
11-03-2011, 12:23 AM
#2
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St. Jude Donor '06
Would DEFINITELY not drive it at the track in that condition can be dangerous and possibly cause steering wheel to lock up (rare but can happen with service traction control on the dic)! 
Need to play things safe also on your brand new engine that your dealer just put in under warranty, etc. Get it back to your dealer asap to get things squared away the way it should be!
Need to play things safe also on your brand new engine that your dealer just put in under warranty, etc. Get it back to your dealer asap to get things squared away the way it should be!
Last edited by Mopar Jimmy; 11-03-2011 at 01:04 AM.
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11-03-2011, 01:38 AM
#4
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Thread Starter
Would DEFINITELY not drive it at the track in that condition can be dangerous and possibly cause steering wheel to lock up (rare but can happen with service traction control on the dic)!
Need to play things safe also on your brand new engine that your dealer just put in under warranty, etc. Get it back to your dealer asap to get things squared away the way it should be!
Need to play things safe also on your brand new engine that your dealer just put in under warranty, etc. Get it back to your dealer asap to get things squared away the way it should be!
DH
11-03-2011, 01:42 AM
#5
Team Owner
Thread Starter
I can envision a 02 sensor being fouled or even a CAT if oil went through exhaust while the 2 hole were being made in my block ...... but why would DIC give "Service Traction System"
I am going to get codes read this weekend before I bring it back to dealer. Do the codes get erased quickly ??
DH
11-03-2011, 09:05 PM
#6
I'm saying "possibly". If I were a dealer installing a new motor, I'd reset all computers with the latest software. The average dealer would use a software image of what they have on hand. A poor dealer would just replace the motor.
An O2 sensor being fouled is the most likely case, but you wouldn't know if it was the carputer misconfigured or the O2 sensor.
The codes you can read do get "reset"; the codes the dealer can read (with a Tech 2) have much longer to live.
-pp
An O2 sensor being fouled is the most likely case, but you wouldn't know if it was the carputer misconfigured or the O2 sensor.
The codes you can read do get "reset"; the codes the dealer can read (with a Tech 2) have much longer to live.
-pp
Last edited by peterpiper; 11-03-2011 at 09:08 PM. Reason: clarifying
11-03-2011, 11:13 PM
#7
Team Owner
Thread Starter
I'm saying "possibly". If I were a dealer installing a new motor, I'd reset all computers with the latest software. The average dealer would use a software image of what they have on hand. A poor dealer would just replace the motor.
An O2 sensor being fouled is the most likely case, but you wouldn't know if it was the carputer misconfigured or the O2 sensor.
The codes you can read do get "reset"; the codes the dealer can read (with a Tech 2) have much longer to live.
-pp
An O2 sensor being fouled is the most likely case, but you wouldn't know if it was the carputer misconfigured or the O2 sensor.
The codes you can read do get "reset"; the codes the dealer can read (with a Tech 2) have much longer to live.
-pp
DH
11-04-2011, 12:14 AM
#8
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St. Jude Donor '09
Check the PCV line, carefully for a vacuum leak. Any lean codes? If you disconnect the PCV line, you will get lean codes and Service Traction Control codes.
Look first for P0171 and P0171 codes; If none, then you may have a problem with the sensors on the wheels. One faulty sensor will cause this as well.
Look first for P0171 and P0171 codes; If none, then you may have a problem with the sensors on the wheels. One faulty sensor will cause this as well.
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11-04-2011, 12:54 AM
#9
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Thread Starter
Check the PCV line, carefully for a vacuum leak. Any lean codes? If you disconnect the PCV line, you will get lean codes and Service Traction Control codes.
Look first for P0171 and P0171 codes; If none, then you may have a problem with the sensors on the wheels. One faulty sensor will cause this as well.
Look first for P0171 and P0171 codes; If none, then you may have a problem with the sensors on the wheels. One faulty sensor will cause this as well.
I will be reinstalling my catch can this weekend so that should rule out any PCV leaks. I know one day at the track I forgot to hook up the lines and I got the CEL. But it went right away when I hooked it back up.
I don't have a code reader (really miss the C5 DIC code read outs)but will have it scanned this weekend.
You listed the same P0171 twice ??
What is your opinion on taking it to the track like this. It stays in COMP MODE with the CEL and the DIC warnings going off
Will my ACH be messed up and car not respond in turns as I have come to expect??
DH
11-04-2011, 07:43 PM
#11
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11-04-2011, 10:00 PM
#12
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The CEL is causing the Service Traction Control message. The CEL has something to do with controlling engine torque (misfire, throttle control electronics, etc). When that happens the ECM sends a message to the EBCM saying it can't control torque properly and the EBCM sets a code and displays the Service Traction message on the DIC. AH isn't necessarily affected by this since it is a brake application Vs torque control function.
Bill
Bill
11-05-2011, 12:09 AM
#13
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Thread Starter
The CEL is causing the Service Traction Control message. The CEL has something to do with controlling engine torque (misfire, throttle control electronics, etc). When that happens the ECM sends a message to the EBCM saying it can't control torque properly and the EBCM sets a code and displays the Service Traction message on the DIC. AH isn't necessarily affected by this since it is a brake application Vs torque control function.
Bill
Bill
DH
11-05-2011, 12:38 AM
#14
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Check the PCV line, carefully for a vacuum leak. Any lean codes? If you disconnect the PCV line, you will get lean codes and Service Traction Control codes.
Look first for P0171 and P0171 codes; If none, then you may have a problem with the sensors on the wheels. One faulty sensor will cause this as well.
Look first for P0171 and P0171 codes; If none, then you may have a problem with the sensors on the wheels. One faulty sensor will cause this as well.
Saw the same thing when my catch can was not sealed correctly.
DH, Code readers are cheap now and available at many auto parts stores that read OBD 2 codes, even Wal Mart carries them. Codes list available on the web. Autozone was providing free code reading service last time I checked.
11-05-2011, 01:13 AM
#15
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Thread Starter
Saw the same thing when my catch can was not sealed correctly.
DH, Code readers are cheap now and available at many auto parts stores that read OBD 2 codes, even Wal Mart carries them. Codes list available on the web. Autozone was providing free code reading service last time I checked.
DH
11-06-2011, 07:43 PM
#16
Team Owner
Thread Starter
Codes found:
P0300: Misfire
P0430: Cat Passenger side
Oiled cat from engine failure makes sense.
Misfire worries me cause I don't know if this was when engine blew or after. Maybe in happened when car stalled or during limp mode ??
There were no codes found in the BCM
Putting some g-force load seems to trigger the DIC message "Service Traction System" and lights up the Traction Control lamp.
DH
P0300: Misfire
P0430: Cat Passenger side
Oiled cat from engine failure makes sense.
Misfire worries me cause I don't know if this was when engine blew or after. Maybe in happened when car stalled or during limp mode ??
There were no codes found in the BCM
Putting some g-force load seems to trigger the DIC message "Service Traction System" and lights up the Traction Control lamp.
DH
Last edited by Dirty Howie; 11-06-2011 at 07:48 PM.
