Operation CHARM: Car repair manuals for everyone.

CAN Communication

CAN COMMUNICATION

System 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.

CAN Communication Unit:




CAN Communication Unit

NOTE: Confirming the presence of the following items helps to identify CAN system type.




- Models with 4WD




- Models with VDC




- Models with ABLS




- Models with electronic locking rear differential

TYPE 1/ TYPE 3

System Diagram:




System Diagram:




System diagram


Input/Output Signal Chart Part 1:




Input/Output Signal Chart Part 2:




Input/output signal chart

TYPE 2/ TYPE 5

System Diagram:




System diagram


Input/Output Signal Chart Part 1:




Input/Output Signal Chart Part 2:




Input/output signal chart

TYPE 4

System Diagram:




System diagram


Input/Output Signal Chart Part 1:




Input/Output Signal Chart Part 2:




Input/output signal chart

TYPE 6/ TYPE 7

System Diagram:




System diagram


Input/Output Signal Chart Part 1:




Input/Output Signal Chart Part 2:




Input/Output Signal Chart Part 3:




Input/output signal chart

TYPE 8

System Diagram:




System diagram


Input/Output Signal Chart Part 1:




Input/Output Signal Chart Part 2:




Input/output signal chart

TYPE 9/ TYPE 10

System Diagram:




System diagram


Input/Output Signal Chart Part 1:




Input/Output Signal Chart Part 2:




Input/output signal chart

TYPE 11

System Diagram:




System diagram


Input/Output Signal Chart Part 1:




Input/Output Signal Chart Part 2:




Input/Output Signal Chart Part 3:




Input/output signal chart

TYPE 12/ TYPE 13

System Diagram:




System diagram


Input/Output Signal Chart Part 1:




Input/Output Signal Chart Part 2:




Input/output signal chart

TYPE 14/ TYPE 15

System Diagram:




System diagram


Input/Output Signal Chart Part 1:




Input/Output Signal Chart Part 2:




Input/output signal chart