Good morning,
I just finished replacing the dampers on my 2010 Rapide, and I am now getting a "ADS off" error message on the dash, and the suspensions go into the "harsh" mode...
I ran my scanner and it's giving me 2 codes:
- C110E = Left rear damper valve fault
- C110F = Right rear damper valve fault
I can erase them, but they will show up the next time I start the car.
I am not getting error messages for the front dampers, so I assume it's not the module.
Any help appreciated, thank you!

 

Bad new parts? Plug in the old ones and clear/cycle the key. I'd venture to say continuity to the new rears is open circuit.

 

I hooked up my scanner again and I noticed a couple of interesting paramaters.

First, the "calculation data" for the right rear damper is at 253, when the other 3 dampers are at 0 or 1.
I tried reconnecting the "old" damper but the result is the same...


Then I looked at the measured and commanded currents to all 4 dampers, and all 8 values remain at 0, even when I am driving.


Now I am starting to actually suspect the ADS module...

Did I miss something? Is there a reset procedure? Or a programming?

 

Modules don't just die. Did you try a battery disconnect?

 

Also, system sees a fault so it's setting all dampers to failsafe. I would recheck connections on all 4. Obviously fronts are easy to check. Perhaps you just have the 1 rear that is at fault.

 

Checked all the connectors, did the battery disconnect for 1 minute, tried to plug back a "old" damper... same results 😒

 

So much for a simple R/R.

 

Just checked both fuses, they both seemed fine.

What I noticed earlier is that if I press the ADS button on the console to turn on the bypass of the ADS system, then I don't have an error message.
As soon as I try to reactivate the ADS system => the message comes on...

 

Going by your codes before, you said rear. Then you had 3 good readings. I'd try getting an Ohms reading on the new vs old damper. Still thinking you have a bad new part.