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.
*1 ETACS: Electronic Time and Alarm Control System
*2 CAN: Controller Area Network
*3 : For details on CAN, see .