Communication Method
As shown in the figure, SWS communications connect the ETACS*1 -ECU, the column switch (in the column-ECU), the front-ECU, and the sunroof-ECU. CAN*2*3 communications connect the ETACS-ECU, the engine control module (ECM) <M/T>, the powertrain control module (PCM) <A/T>, the A/C-ECU, the SRS-ECU, the combination meter, the ABS-ECU and the ABS/TCL-ECU. These two communications groups are connected to form a dedicated network for sending multiplex data.
*1ETACS: Electronic Time and Alarm Control System
*2CAN: Controller Area Network
*3: For details on CAN, see CONTROLLER AREA NETWORK .