CAN-BUS Diagnostics
A Simple Guide to CAN Bus Communication Introduction: In the world of vehicle technology, the CAN Bus system plays a crucial role in how different parts of a car communicate with each other. While it might seem complicated, breaking it down into simpler terms reveals how this system keeps everything running smoothly. What is the CAN Bus? The CAN (Controller Area Network) bus is essentially the language that allows various car components to exchange information. It uses two twisted wires, known as CAN High and CAN Low, to ensure clear and reliable communication. At the ends of these wires, 120-ohm resistors are placed to prevent signal distortion and maintain data accuracy. Structure of the CAN-BUS When the ECUs communicate, they send data in the form of CAN messages. Each CAN message has a specific structure that ensures the information is transmitted correctly. Here’s a simplified breakdown of the components of a CAN message: 1. Start of Frame (S...