service stabilitrak after motor mount change

[black-n-gold]

I have a 2011 suburban. the motor mount on the drivers side needed to be changed. In order to change the mount I removed the steering shaft that connects the steering to the gear box. I marked the steering shaft so I can reinstall it the same way it came off. Everything went smooth changing the mount. After putting everything back together now I get a service stabilitrak , traction control off warning, also at low speeds the vehicle seems like the abs is activating randomly although I dont get any abs indicators on the dash. I dont have a scanner so I brought it to autozone th have it scanned and no codes were found. I tried disconnecting the battery for a few minutes but the warnings come back. I'm thinking that the steering position may be slightly out of sync or I may have damaged the steering position sensor some kind of way.

 

Any ideas what could be going on?  

[ryank1]

Sounds like you have a wheel speed sensor starting to fail.  You really need a scanner that shows individual wheel speeds and you will see at low speeds one of the sensors is dropping out and reading 0 mph, causing the ABS to think that the wheel is locked up and activating the ABS.  It could also be the steering wheel position sensor failing, but speed sensor is more common for feeling the ABS activating.  Either way you need a better scanner to either read wheel speeds or C codes.  The scanner that the auto parts stores use for free can only read P codes and ABS and Stablilitrak codes are C or Chassis codes.

[newdude]

Although you may have marked the steering shaft, did the wheel get turned in any sort of fashion?  I'm thinking you may end up finding codes for the steering wheel position sensor.   

[black-n-gold]

I thought it could be a wheel speed sensor, its just coincidental that it happened at the same time I worked on it. The steering wheel did turn while it was disconnected, it could be 360 deg out. Is there a way to reset it without disconnecting the shaft?

I won't have another opportunity to look at it for about a week, but I'll get it scanned for the c codes.

 

 

 

thanks. 

[black-n-gold]

Problem solved; when I removed the shaft the steering wheel must have been turned 360 deg.  so I removed the shaft again and turned the wheel 1 whole turn and re assembled the shaft and no more stabilitrak error messages. lesson learned, lock that steering wheel down when working on steering parts.

 

Thanks for those who replied