Just bought a used 2009 Silverado hybrid 2wd. The traction control light begins to flicker every time in a turn. It doesn't matter which way or how fast except usually doesn't come on unless going over 20mph and only when making actual turns it doesn't come on when changing lanes on the highway or anything. I have since replaced both front wheel hubs with new wheel speed sensors and both in the rear. It doesn't save any ABS codes and the traction control ABS seems to work as advertised I just get the light flickering on every turn I don't notice any power deminished or anything other than gas mileage is no where near the EPA rating for this year hybrid. I am thinking possibly a bad Yaw rate sensor or stealing sensor? Possibly the ABS module? I wish it would just hard fail and give me some kind of code. Anyone have any ideas or options on what to do next?

 

is your scan able to read chassis codes?

 

My current OBD scan tool doesn't read ABS codes, I took it to Midas the tech said there scanner won't pick up a code unless the light is on. I called the dealership they said they can try and check it for $135 and then troubleshoot for $135 per/HR to figure it out. I figured I could buy my own ABS enables scan tool and do it my self for cheaper. Just trying to figure out if there is a scan tool that will display real time data while I drive because the traction control light only triggers while driving and turning, none of the lights stay on.

Does anyone know if there is a resistance check for the steering position sensor? Or yaw rate sensor? Can I use my multimeter to verify these sensors are working even if I have to back prob them and monitor voltage or something while driving anyone know the signals these sensors produce?

 

a chassis fault will be stored in history even if the fault is not current. have someone with the proper equipment check. have them test drive with you when you are turning.

rule this out first.

 

its not intermittently failing anything, the traction control light flashes on every turn as if I am having wheel slip. The system is overly sensitive. I bought an ABS scan tool just to make sure there wasn't any stores codes. I figured it would be a wheel sensor because of the way it's acting up but after replacing the two rear sensors, replacing both front wheel hubs with sensors, and checking continuity of the vehicle harness from wheel sensor to the ebcm, I believe it is either the yaw rate sensor or the steering position sensor. But like I said there is not a fault or stores faults the system is just acting overly sensitive.

any ideas?