I promised on an old thread a few weeks back I'd come back and report what was causing the DIC to read "Service Engine Soon", "Service Active Handling System" and "Service Traction Control System". Replaced the Steering Wheel Control Sensor and it appears to have corrected the problem. Gotta love these C5's...mine has 34K on it, but sensors etc. do get old...

 

Good that the SWPS solved the problem. Thanks for the update.

 

Thanks for the update, I'll keep it in mind in case of future problems. Glad you got it fixed.

 

I had to replace the steering sensor on my 04 last year.

 

Come on Chip, you're leaving out the most important part: The troubleshooting.

I'm not the brightest guy around, but I don't see what it was about three completely different diagnostic codes, none of which have anything, at least on the surface, directly to do with steering pointed you towards the steering wheel sensor. How did ya come up with that?

 

Same here, '04 as well

 

I wrote this in another thread regarding this. This malfunction wrecked his car. I believe it, however it is near impossible to prove/convince anyone who hasn't had it happen to them.

"There are a few things (malfunctions) that will cause AH to activate on a good warm dry straightaway. One example: if your steering wheel position indicator is failing, the EBCM may receive a faulty signal. If the signal is off enough, the sensor may incorrectly detect a commanded turn (thinking you turned the wheel) even on a straight section of road. The EBCM will then expect a corresponding signal from the yaw sensors. When it doesn't get that signal (you're still straight) it will activate AH trough differential braking in an attempt to achieve that signal. This will be seen by the driver as an uncommanded and unanticipated activation of AH and a jerking motion of the car to one side or the other. If severe enough, it could theoretically cause an accident, especially if the driver overreacts to it."

So yeah, that scenario totally sucks. Thats why "Service Active Handling" is nothing to F with. Also, if it does cause the accident, do you think the insurance company is going to go through all the trouble to pull and inspect the SWPS? He11 no, they're gonna blame the amateur driving with absolutely ZERO documented professional driving experience and say "too much car for him... that sucks." Case Closed

Full thread CLICK HERE

 

Dayum! Thanks for posting that. I had no idea that could even happen. It seems like it might be a good idea to change that sensor out every so often whether it needs it or not? Where's it located at and how expensive is it?

 

Mdiiulio, thanks for answering up. Your right on, that's pratically identical to what my shop said.
For Wendell, the steering wheel sensor is located down on the lower part of the steering column. It's somewhat of a pain to get to (requires a good back) Job is done from top of engine bay. Part was $90 and labor was 1 1/2 hour. Well worth it to me.

 

Please make sure you post what you did in your old Thread so people can learn. Thanks.