Integrated Control System

U1000 CAN COMM CIRCUIT

Description

CAN (Controller Area Network) is a serial communication line for real time applications. It is an on-board multiplex communication line with high data communication speed and excellent error detection ability. A modern vehicle is equipped with many ECUs, and each control unit shares information and links with other control units during operation (not independent). In CAN communication, 2 control units are connected with 2 communication lines (CAN-L-line and CAN-H-line) allowing a high rate of information transmission with less wiring.
Each control unit transmits/receives data but selectively reads required data only.
CAN Communication Signal Chart for details of the communication signal.


DTC Logic


DTC DETECTION LOGIC








Diagnosis Procedure


1. PERFORM SELF-DIAGNOSIS

1.Turn the ignition switch ON and hold it for 2 seconds or more.
2.Using CONSULT, check the "self diagnosis result" of "MULTI DISPLAY".
Is CAN communication system displayed?
YES- Trouble Diagnosis Flow Chart.
NO- Intermittent Incident.