What does UDS mean?

[MacAdam]

UDS protocol is a unified diagnostic service, serving as a standard reference protocol for diagnostic services. For example, what commands should be sent to the ECU to read fault codes, and what commands to read data streams. It is a set of diagnostic protocols used to analyze current issues in vehicles, and this protocol is widely used in automotive electronics. Related introductions are as follows: 1. Diagnostic service: OBD is an industry standard formed from the concept of focusing on real-time emissions in vehicle after-sales, while UDS is a unified standard for diagnostic services. UDS provides a basic framework for diagnostic services, allowing automakers and component suppliers to choose to implement part of it or customize some private diagnostic services based on actual conditions. 2. Enhanced diagnostics: Diagnostics based on the UDS protocol are often referred to as enhanced diagnostics. UDS is not a regulatory requirement and does not have a unified implementation standard. Its advantage lies in facilitating the development of production line testing equipment, while also greatly aiding the realization of after-sales maintenance and telematics functions.