ISX no cruise or eng brake-multiplexing issue

[DieselKid]

Sorry just re-read that, didn't notice multiplexing was off. Are you getting faults 285 and 286? I think your only option maybe to contact a KW dealer and get them to email you original settings. Another option would be to use parameters from another unit from same year with same engine. I think all addresses are to the cecu. Multiplexing is pretty close on all of them, you may still have some issues that you could figure out when some functions fail to work.