Structural characteristics and principles of obd2 to open end cable

Structural characteristics and principles of obd2 to open end cable

The OBD2 to open end cable is an important connecting cable used in automotive diagnostic systems. The following is an introduction to it:

Structural characteristics

OBD2 interface: Following the 16 pin interface of the OBD2 standard, it can perfectly adapt to the OBD diagnostic port of the car, ensuring accurate data communication with the vehicle's electronic control system, and realizing the reading of various operating parameters and the acquisition of fault codes of the vehicle.

Open end design: The other end is in an open form, which can be connected to different devices or tools according to specific needs, such as car diagnostic instruments, OBD to USB adapters, OBD locators, etc., providing convenience for vehicle inspection, maintenance, and data acquisition operations.

Cable specifications: Usually, wire specifications that meet the requirements of automotive electrical systems, such as 24AWG, 26AWG, etc., are used to ensure good conductivity and signal transmission stability. At the same time, cables have a certain degree of flexibility and wear resistance, which can adapt to the complex wiring environment inside cars.

Working principle

The OBD2 to open end cable operates based on the CAN (Controller Area Network) communication protocol for automobiles. It is connected to the vehicle's CAN bus through the OBD2 interface, transmitting various data signals from the vehicle's electronic control unit (ECU), such as engine speed, vehicle speed, water temperature, fault codes, etc., to devices connected to the open end. These devices present the received data to users in an intuitive way by parsing it, helping them understand the vehicle's operating status or perform fault diagnosis and analysis.