[SweetBMW]

Hi.

I want to share an unusual problem with you guys, maybe we can find a solution together.

I got a call from a friend trying to replace a CCC unit in a 09\2004 E63 630i.
New unit from dealer. Using ISTA\P (original dealer) tried to start a session to code the new CCC unit.

The session failed because the SGM\ZGM (not KGM) wasnt responding and therefore no units could be programmed.

A new SGM was brought in, but same problem in ISTA\P. New and old SGM is working fine in ISTA\D and can be coded with NCS Expert.

It is ONLY in ISTA\P the SGM is not responding, both on the OEM Dealer setup and my standalone setup. Both running 3.57.4.

The original conclusion was faulty module, but seeing as the new one is not responding as well, they thought maybe cable break, but the modules are working great in ISTA\D and there areno errors on the short test.

Any ides?

After trying a few other solutions i discovered that the light module had been replaced with a unit from a E65 745i. But the part numbers should be interchangeable. Correct me if im wrong. The unit was anyway flashed with correct software, correct vin, and coded. also FA was written to the LM from CAS and checked against dealer records.

Hoping we can solve this