Im getting the same error code when trying to turn off ASS. It get to about 43% and error out.
Turn on:
BCM : Fog Light with High Beam.
ACM : Enable HD radio.
Turn off:
ACM : FENG
Oooh didn't know you had to turn on HD Radio, will do that as well.
Where are you trying to turn it off?
I turned if off in BdyCM by first disabling
BMS, and then Turned off
BMS / Start Stop, I don't think it works otherwise.
If you only set BMS/ Start Stop to disabled you will get charging system warnings on your dash.
I still have to extensively test it but on first impressions the engine stays on, when I come to a stop I get the
A icon and it's crossed out all the time.