Programming, Anti-theft protection: Immobilization
WARNING: This page is about a different car, the 2001 Saab 9-3. However, it is still accessible from the selected car via links, so may be relevant.
When the TWICE control module is replaced, the new module must be combine programmed with the Multi Instrument Unit (MIU) and the Engine Management System to ensure that the immobilization functions properly. Otherwise the engine will not start.