hi,smart people please advise.
car is 2009 year passat cc keyless go with pcf7936

problem is that keyless dont work.

story.

car was no start because of loss keys.
nobody couldt do key with vcds,abritus,vcp.
owner brought car to dealer. they flashed all immo modules etc but couldn start the car. owner took it back.
finaly made key with tango from comfort module. than they tried make central loocking sync. no tool done that. in vcds 001 channel dont see radio frequency dont recognize.
thank bought new comfort module. swapped eeproms etc,car started but still no remote function.

where could be problem and how keyless go functions syncs?

as on dash when programming by obd its shows 0-2 and you can change keys multiply times its stays 0-2 and car dont start even with old programmed keys. need again do chip with tango..

any ideas?