Engine Control System

U1010 CONTROL UNIT (CAN)

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

DTC Confirmation Procedure

WITH CONSULT-III
1. Turn ignition switch ON.
2. Check DTC.
3. If DTC is detected, go to "Diagnosis Procedure" below.

WITH GST
Follow the procedure "WITH CONSULT-III".

Step 1-2:

Diagnosis Procedure