CAN Communication Line

DTC U0101 CAN COMMUNICATION LINE





Description
CAN (Controller Area Network) is a serial communication line for real time application. It is an on-vehicle multiplex communication line with high data communication speed and excellent error detection ability. Many electronic control units are equipped onto a vehicle, and each control unit shares information and links with other control units during operation (not independent). In CAN communication, control units are connected with 2 communication lines (CAN H line, CAN L line) allowing a high rate of information transmission with less wiring.
Each control unit transmits/receives data but selectively reads required data only.




On Board Diagnosis Logic
This self-diagnosis has the one trip detection logic.

On Board Diagnosis Logic:

DTC Confirmation Procedure
1. Turn ignition switch ON and wait at least 3 seconds.
2. Check DTC.
3. If DTC is detected, go to CAN Communication Line.
3. If DTC is detected, go to CAN Communication Line.




Wiring Diagram




Diagnosis Procedure
Go to Trouble Diagnosis Flow Chart.