STC

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-III
1. Turn the ignition switch OFF to ON.
2. Perform "EPS" self-diagnosis.
Is DTC "U1000" detected?
YES - Proceed to diagnosis procedure. STC.
NO - INSPECTION END




Diagnosis Procedure
1.PERFORM SELF-DIAGNOSIS
With CONSULT-III
Perform "EPS" self-diagnosis.
Is DTC "U1000" detected?
YES - CAN specification chart. CAN System Specification Chart.
NO - INSPECTION END




Special Repair Requirement
1.ADJUSTMENT OF STEERING ANGLE SENSOR NEUTRAL POSITION
Always perform the neutral position adjustment for the steering angle sensor, when replacing the steering column assembly. Special Repair Requirement.
- END