We use cookies on our website to provide you with the best possible service and to further improve our website. By clicking the "Accept All" button, you agree to the use of all cookies. You can limit the cookies used by clicking on "Accept selection". Further information and an option to revoke your selection can be found in our privacy policy.


These cookies are necessary for basic functionality. This allows you to register on our website and forum or order products with our online shop.


With these cookies, we collect anonymized usage data for our website. For example, we can see which content is interesting for our visitors and which resolutions are used. We use the information to optimize our website to provide you with the best possible user experience.


show more


API Implementation of the UDS Standard (ISO 14229-1)

UDS (ISO 14229-1) stands for Unified Diagnostic Services and defines the communication with control units (ECUs). The Windows® software tests the controller using various services. The process is done on the client-server principle where the program is in the position of the client (also called tester). UDS uses the ISO-TP standard as transport protocol, thus UDS can transmit data blocks of up to 4095 bytes size. Besides the exchange of maintenance information, for example, the transfer of firmware is possible.

The PCAN-UDS API implements the functionality of the standard on the basis of 8 functions. They are categorized in Tester Allocation, Configuration, Information, Utilities, Services, and Communication.

  • Implementation of the UDS protocol (ISO 14229-1) for the communication with control units
  • Windows® DLLs for the development of x86 and x64 applications
  • Thread-safe API
  • Physical communication via CAN or CAN FD using a CAN interface of the PCAN series
  • Uses the PCAN-Basic programming interface to access the CAN hardware in the computer
  • Uses the PCAN-ISO-TP programming interface (ISO 15765-2) for the transfer of data packages up to 4095 bytes via the CAN bus

System requirements

  • Windows® 11 (x64), 10 (x86/x64)
  • At least 2 GB RAM and 1.5 GHz CPU
  • For the CAN bus connection: PC CAN interface from PEAK-System
  • PCAN-Basic API
  • Interface DLLs (x86/x64)
  • Examples and header files for all common programming languages
  • Documentation in PDF format


API to communicate with control devices according to UDS (ISO 14229-1) for Windows® 11 (x64), 10 (x86/x64).


PCAN-UDS API documentation



API for the development of applications with CAN and CAN FD connections for Windows® 11 (x64/ARM64), 10 (x86/x64).



API for the transfer of data packages according to ISO-TP (ISO 15765-2) for Windows® 11 (x64), 10 (x86/x64).


Additional information