Control Module Power Supply: +30
WARNING: This page is about a different car, the 2007 Saab 9-5 and 2006 Saab 9-5. However, it is still accessible from the selected car via links, so may be relevant.
The main relay, fuel pump relay and fuse 17 are supplied with current from the +30 circuit via maxifuse 2. Control module pin 23 is supplied with current from fuse 17.
The control module uses +30 for its memory.