Except For California

U1000, U1001 CAN COMM CIRCUIT

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.

DTC Logic




DTC DETECTION LOGIC

Step 1:

DTC CONFIRMATION PROCEDURE

Diagnosis Procedure
Go to "Information Bus". Diagnosis and Repair Workflow