Trailer coding help

[Jason4412]

I read through several posts about this before I started and thought I had it figured out....

I installed an oem hitch kit with wiring and AHM module. I added +AHMU to the CAS and FRM VO, then I coded:

FRM, HKL, KOMBI, and PDC

everything looked good except the AHM won’t respond when I try to program in the car, see attachment, I can’t read the code or process car as it always fails on the AHM. Seems to be an issue with the module or operator error. Any help would be appreciated.

[Jason4412]

Well it was operator error...i still had the 3 pin bus connector disconnected! All works well!