1A-269 Engine General Information and Diagnosis: For Diesel Engine Model
CAN Communication System Description
ECM (1), ABS or ESP® control module (2), BCM (3), 4WD control module (4), keyless start control module (5)
combination meter (6), immobilizer control module (7) and steering angle sensor (8) (ESP® model) of this vehicle
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.
3
4
5
7
8
S6JB0A1121005
1
2
6
I6JB01110110-02