Power supply, ground and bus communication

PIN SIGNAL TYPE DESCRIPTION

Pin no.	Signal type	Description
1 (K18)	I-bus
7 (K12)	Power supply, +30	From main fuse box (701) in luggage compartment pin 1 via fuse 21
8 (K12)	Ground	Grounding point G3

Fig 1: Identifying SPA Control Module Communication Diagram

Courtesy of SAAB-SCANIA OF AMERICA, INC.

Fig 2: Identifying SPA Control Module Circuit Diagram

Courtesy of SAAB-SCANIA OF AMERICA, INC.