Engine bay electrical center 342 (UEC): Connection
WARNING: This page is about a different car, the 2003 Saab 9-3. However, it is still accessible from the selected car via links, so may be relevant.
The fuse box is connected to the battery and to grounding points G30A, G30B and G33S. The electrical center is connected via three switches in its base to the engine harness, front harness and main harness.
The engine harness is connected via switch M
The front harness is connected via switch F
The main harness is connected via switch B
Power supply circuit for +30
Power supply circuit for +15