UDS and SOVD in Hybrid Use – From the ECU to the Vehicle

Our recent article on Springer Professional highlights how Softing bridges the gap between established diagnostic protocols and new standards. While UDS (Unified Diagnostic Services) has been the backbone of vehicle diagnostics for years, SOVD (Service-Oriented Vehicle Diagnostics) opens up entirely new possibilities for software-defined vehicles. The key lies in a hybrid approach that combines the strengths of both worlds.

From UDS to SOVD – The Evolution of Vehicle Diagnostics

UDS remains a proven and essential foundation of vehicle diagnostics. Workshops and developers continue to rely on the protocol for direct and reliable ECU access, and it will remain indispensable in the coming years – especially for traditional ECU structures and existing diagnostic tools. However, as high-performance computers and service-oriented architectures increasingly shape the vehicle landscape, UDS reaches its limits. This is where SOVD comes in: the standard enables service-oriented communication, making diagnostic services more flexible, scalable, and accessible across multiple entry points –from on-site vehicle diagnostics to remote sessions and continuous in-vehicle monitoring.

Hybrid Approach as the Way Forward

Softing shows in the article that the future is not about either-or, but about working together. A hybrid use of UDS and SOVD offers:

• Compatibility with existing tools and processes
• Integration of new workflows for software-defined vehicles
• Step-by-step migration instead of a disruptive overhaul

This approach enables OEMs, suppliers, and workshops to transition smoothly into next-generation architectures without abandoning established standards.

Opportunities for Diagnostics and Aftersales

The hybrid model offers a wide range of benefits:

• Increased efficiency by leveraging both standards

• Remote and predictive maintenance scenarios enabled by SOVD

• Future readiness without replacing UDS-based systems prematurely