I have a e92 that came with no key and was told it had a bad engine
Did compression on old engine, and it barely made any
Replaced engine with reman unit
DME had no coding and the engine would crank, but not start
Tried to code and sync
same result
Tried to learn new key first time programming any CAS3+
Cleared faults, reset ECU, clear faults again
read ISN do a bunch of stuff mindlessly not realizing this isnt some chysler easy crap I am used to working on
broke everything to the point of having to restore bin to get engine to crank again
no start
Removed CAS module assembly (with the ribbon cable and ignition module)
Removed DME
Removed electronics junction box module
off to the bench
wired CAS k-can to JBE
wired pt-can to JBE
both lead to OBD connector
I'm using alldata wiring diagram and there are some discrepancy to them
does the cas receive terminal 30 for power and out put terminal 15 sig to DME to boot DME?
does JBE need to be powered to allow CAS & DME to communicate?
do all grounds need to be present or only select pins for booting and programming?
old key reads locked, couldnt find a way to unlock
2 new aftermarket keys on hand
2011 BMW 328xi Coupe AWD (E92) L6-3.0L (N52K)
Manual tranmission
any help appreciated!