Control Module Inputs For The Immobilizer

WARNING: This page is about a different car, the 2002 Saab 9-3. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: Identifying Control Module Inputs

Courtesy of SAAB-SCANIA OF AMERICA, INC.

Car key
Antenna unit, immobilizer (463)
Antenna, remote control, central locking system (456)
Ignition switch (20)