Can Communication System Description - Suzuki 2006 SX4 Service Manual

1A-8 Engine General Information and Diagnosis:

CAN Communication System Description

ECM (2), ABS control module (1), TCM (3), BCM (4), 4WD control module (6), combination meter (7) and keyless start
control module (5) communicate control data between each control module.
Communication of each control module is established by CAN (Controller Area Network) communication system.
CAN communication system uses the serial communication in which data is transmitted at a high speed. It uses a
twisted pair of two communication lines for the high-speed data transmission. As one of its characteristics, multiple
control modules can communicate simultaneously. In addition, it has a function to detect a communication error
automatically. Each module reads necessary data from the received data and transmits data. ECM communicates
control data with each control module as follows.
5
6
7
8. CAN junction connector
9. DLC
8
9
S6RW0C1101015
1
2
3
4
I6RW0C110003-02