UKPassats

Does anybody have a full pin-out list for the Siemens PPD1.5 ECU please ? I already know +12v and ground, but I need to find out which pins carry the 5v reference voltage. I know it's on T60 pin 42, but I suspect it is also on at least one other pin on either the T60 or T90.
This is for a 2007 140HP BKP PD engine.

Thanks