Control module inputs, bus

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.

Fig 1: Bus Control Module Inputs Communication Components

Courtesy of SAAB-SCANIA OF AMERICA, INC.

Main instrument (540). STC control module receives the bus message "Car speed", unit km/h, mph from the main instrument. See FUSES & CIRCUIT BREAKERS
TWICE (632). STC control module receives bus message "Boot lid", unit OPEN/CLOSED from TWICE. See FUSES & CIRCUIT BREAKERS