Control module outputs, bus

WARNING: This page is about a different car, the 2006 Saab 9-5. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: Identifying Control Module Outputs, Bus

Courtesy of SAAB-SCANIA OF AMERICA, INC.

Vehicle speed. See SPEEDOMETER
Odometer reading is used by the SID control module (541). See SPEEDOMETER WITH ODOMETER AND TRIPMETER
Fuel level is used by the SID control module (541), ECM. See FUEL GAUGE
The acoustic signal is used by the SID control module (541)
Diagnostic communication (445)
Identification number used by TWICE (632). See IMMOBILIZATION
The light sensor value is used by the SID control module (541)