System Overview - Design and Function

System Overview - Design And Function

The following modules communicate with the Engine Control Module (ECM) via the network:
- Electronic Throttle System (ETS) including Electronic Throttle Module (ETM) and Accelerator Pedal Module (APM)
- Transmission Control Module (TCM)
- Anti-lock Braking System (ABS)
- Central Electronic Module (CEM)
- Diagnostic Connector for connection to VADIS (Volvo Aftersales Diagnostic and Information System)
- Driver Information Module (DIM), combined instrument panel
- Climate Control Module (CCM)
- Steering Wheel Module (SWM)
- Central Electronic Module (CEM) is the central computer in the network, which handles the exchange between the network's high speed and low speed sections. The high-speed section covers the following modules: Engine Control Module (ECM), Electronic Throttle Module (ETM), Transmission Control Module (TCM), Anti-lock Braking System (ABS) and the Central Electronic Module (CEM).
- The Engine Management System contains a large number of sensors that send information by analog signals directly to the Engine Control Module (ECM).