Hello.

I used Autohex for FEM replacement from time to time but recently on every such jog I have issues. Las FEM programming. Unlocked both FEMs. Did CAS replace on bench. Transferred ZGW.FFA to replacement. Program and code. Key is OK. New FEM 100 codes. Many of them do not make sense. For example "rear door on driver and passenger side disconnection" but the car is 2 door, convertible. Of course, customer states no such codes on old FEM.

Any one else doing this kind of service. Any tips?

Please ensure that 'fa' is correct on used fem. Please load original fem fa to new fem from fa manager option. Then go out and come inside coding/programming and program fem gw[10] and body[40].
clear the faults and check again.

Yes. So to close this, I got the FEMs back abd the CAFD was different in the FEM. The way I fixed it.

1st connect the original FEM, go to FEM coding.
2nd unplug the original FEM and plug the replacement.
3rd recode the replacement FEM.

Read CAFD in both and compare. OK

Maybe it will help someone.