Immobilizer Control System

U1010 Control Unit (CAN)

Description

CAN (Controller Area Network) is a serial communication line for real time applications. It is an on-vehicle multiplex communication line with high data communication speed and excellent error detection ability. Modern vehicle is equipped with many electronic control unit, 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.

CAN Communication Signal Chart, refer to [CAN Communication Signal Chart] Signal Chart.

DTC Logic

DTC Detection Logic






Diagnosis Procedure

1. REPLACE BCM

When DTC [U1010] is detected, replace BCM.


Replace BCM. Refer to [BCM: Removal and Installation] Removal and Replacement.

Special Repair Requirement

1. REQUIRED WORK WHEN REPLACING BCM

Initialize BCM. Refer to SDT Operation Manual.


Inspection End.