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.

Component Function Check

1.CHECK CAN COMMUNICATION CIRCUIT

1. Turn ignition switch ON.

2. Check DTC.

Is DTC detected? YES >> EC-1014, "Diagnosis Procedure" NO >> INSPECTION END.

Diagnosis Procedure

Go to LAN-17, "Trouble Diagnosis Flow Chart".