I installed the oem hitch and harness. No brake lights, so I used NCS expert to add +ahmu to the VO and processed the CAS and FRM modules. The instructions I had said to then process car. I did this and after coding several modules, I got an error. Now, my trailer lights works perfect, but my idrive controller won't turn to the right. I mean the knob turns, but the cursor won't go to the right. The 4 way push and push down features still work.

Also, my sunroof has lost the one touch open and close feature.

Unfortunately I have now learned it's best to not process car. Any thoughts on how to get it back to normal?

I tried removing +ahmu from the VO and processing car again, but that didn't work. Same error after coding a couple modules

Thanks for the help