Service Breaking Assist / Service Traction Control - when making sharp low-speed turn - Chevy Impala Forums
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post #1 of (permalink) Old 01-21-2019 Thread Starter
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Question Service Breaking Assist / Service Traction Control - when making sharp low-speed turn

Greetings, Fellow Impallians


So after transmission problems, requiring a rebuild... I'm being treated with this new symptom.


My 2006 Imp SS is giving me the following issue, upon making a ~80-90 degree turn (more right than left, but happens in both directions - although I guess it could be said left turns are generally less sharp here in the US....


My dash with flash 'Service Break Assist' followed by 'Service Traction Control' - but then goes away in a few seconds.



I notice no actual effect on my driving experience.
The occurrence seems to becoming more frequent - which may or may not be related to the temperature drop (hanging out around 10F)


Bad sensor? Which one? Where is it located? Can a non-automotive technician replace it themselves? (I can do my own oil & breaks, I've even been known to replace a power steering or water pump)


Am I risking mechanical failure by continuing to drive the car?



***Edited to include Year and trim, make and model should be a given***



I appreciate any input, Thank you.


Kind Regards,


-JDT

------------------
Kind Regards,

-JDT

Last edited by Scrappy; 01-21-2019 at 05:38 PM.
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post #2 of (permalink) Old 01-22-2019
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Quote:
Originally Posted by Scrappy View Post
Greetings, Fellow Impallians


So after transmission problems, requiring a rebuild... I'm being treated with this new symptom.


My 2006 Imp SS is giving me the following issue, upon making a ~80-90 degree turn (more right than left, but happens in both directions - although I guess it could be said left turns are generally less sharp here in the US....


My dash with flash 'Service Break Assist' followed by 'Service Traction Control' - but then goes away in a few seconds.



I notice no actual effect on my driving experience.
The occurrence seems to becoming more frequent - which may or may not be related to the temperature drop (hanging out around 10F)


Bad sensor? Which one? Where is it located? Can a non-automotive technician replace it themselves? (I can do my own oil & breaks, I've even been known to replace a power steering or water pump)


Am I risking mechanical failure by continuing to drive the car?



***Edited to include Year and trim, make and model should be a given***



I appreciate any input, Thank you.


Kind Regards,


-JDT

One or both of the wheel speed sensor harnesses are damaged. Although they are inside a plastic conduit, the wiring can be damaged inside by repeated turns of the steering wheel. A common location for damage is where the harness is crimped with a metal band to hold it in place.

GM makes replacement harnesses (left and right) and are specific to your vehicle (various years, engines, options, etc.).

You can carefully examine each harness and try to determine if there is a break in the wiring (or damage).

If you do a search, there are numerous threads on this forum about the problem.

PS - It is a brake warning, not a break warning.....
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post #3 of (permalink) Old 01-22-2019
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Quote:
Originally Posted by 1999 White C5 Coupe View Post
One or both of the wheel speed sensor harnesses are damaged. Although they are inside a plastic conduit, the wiring can be damaged inside by repeated turns of the steering wheel. A common location for damage is where the harness is crimped with a metal band to hold it in place.

GM makes replacement harnesses (left and right) and are specific to your vehicle (various years, engines, options, etc.).

You can carefully examine each harness and try to determine if there is a break in the wiring (or damage).

If you do a search, there are numerous threads on this forum about the problem.
From what i've read on these forums, this appears to be spot on to your issue based on your description. wheel speed sensors are regarded as common/not terrible to replace on your own. It sounded like in another post you were a computer tech of some sort, if you're able to solder the new harness into the existing one then shrink wrap it, the repair might not be terrible.

EDIT: i was able to find this link which has an internal link with pictures of the harness by JTrosky. i think it would be beneficial to your search for an answer: https://www.impalaforums.com/chevy-i...eft-turns.html.

hope this helps.
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post #4 of (permalink) Old 01-24-2019 Thread Starter
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Yes, I searched the forum before asking... just didn't feel the previous scenarios fit my exact situation, my apologies.


It got worse the day I had to change my battery (Monday, I won't go in to that retarded fiasco) where the ABS light came on and stayed on after flashing the previously-mentioned warnings at me. It snowed quite a bit and got down to -6F (+ windchill) here in communist central NY


So it warmed up to ~44F (from -6F when the problem got the worst) and all the snow melted out from under my car.... Warnings went away completely, even when making sharp right turns. Possible slush build up on the sensor?

------------------
Kind Regards,

-JDT
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