9-3 FWD (9440) L4-2.0L Turbo (B207R) (2009)
The control module consists of a microprocessor with a clock, RAM and I/O unit. An internal bus links the processor and memory to the I/O unit. The
I/O unit is responsible for reading values from A/D converters for digital inputs and bus and for activating the transistors in the final stages. The distance
sensors communicate via a two-way communication bus between the sensors and the control module.
Power supply, ground and bus communication