Differential

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, CAN-L) 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. PERFORM DTC CHECK

1 Turn ignition switch ON and wait for 2 seconds or more.
2 Check "DTC check" of differential lock control unit.

Is "CAN COMM CIRCUIT" displayed?
YES
Refer to [LAN System: Basic Inspection] LAN System Basic Inspection.
NO
Refer to [Service Information for Electrical Incident: Intermittent Incident] Service Information for Electrical Incident: Intermittent Incident.