Interface characteristics and uses of right angle 9 pin J1939 male to 16 pin OBD2 cable
The right angle 9-pin J1939 male to 16 pin OBD2 cable is a connecting cable used in the field of automotive communication and diagnosis. The following is a detailed introduction about it:
Interface features
Right angle 9-pin J1939 male head: usually in a right angle shape, it is easy to install and connect inside vehicles with limited space. The 9-pin pin pin allocation follows the SAE J1939 standard and is used to transmit various signals specified in the J1939 protocol, including data related to power systems, chassis systems, body systems, etc.
16 pin OBD2 interface: It is a trapezoidal female connector with anti misoperation design. The 16 pins each have specific functions, such as power supply, grounding, signal transmission, etc. Among them, pins 6 and 14 are usually used for CAN bus communication, connected to the corresponding pins of J1939 male to achieve data exchange.
purpose
Vehicle diagnosis: used to connect vehicle control systems with J1939 interfaces and diagnostic equipment with 16 pin OBD2 interfaces, so that maintenance personnel can read vehicle fault codes, real-time data, and other information for troubleshooting and maintenance.
Data monitoring: Various operational data of the vehicle, such as vehicle speed, engine speed, water temperature, fuel consumption, etc., can be transmitted from the vehicle's J1939 network to monitoring devices or on-board computers that support OBD2 interface, making it convenient for car owners or relevant personnel to understand the vehicle status in real time.
Programming and configuration: In some cases, it can be used to program, configure, or upgrade the electronic control unit (ECU) of a vehicle, and transmit new programs or parameters to the corresponding ECU in the vehicle's J1939 network through the OBD2 interface.
We chat
