Your Vehicle: 2009 Nissan-Datsun Altima V6-3.5L (VQ35DE)
 
Vehicle » Powertrain Management » Relays and Modules - Powertrain Management » Relays and Modules - Computers and Control Systems » Engine Control Module » Description and Operation » CAN Communication  
 
 
  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. Refer to See: Computers and Control Systems\Information Bus\Application and ID\CAN Communication Signal Chart, about CAN communication for detail.