Steering Control System

U1000 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 communicate data but selectively reads required data only.


DTC Logic


DTC DETECTION LOGIC







DTC CONFIRMATION PROCEDURE


1. DTC REPRODUCTION PROCEDURE

With CONSULT
1.Turn the ignition switch OFF to ON.
2.Perform EPS control unit self-diagnosis.
Is DTC "U1000" detected?
YES- Proceed to diagnosis procedure. .
NO- Inspection End


Diagnosis Procedure


1. PERFORM SELF-DIAGNOSIS

With CONSULT
Perform EPS control unit self-diagnosis.
Is DTC "U1000" detected?
YES- CAN specification chart. Trouble Diagnosis Flow Chart.
NO- Inspection End.