International Standard
ISO 15765-2:2024
Road vehicles — Diagnostic communication over Controller Area Network (DoCAN) — Part 2: Transport protocol and network layer services
Reference number
ISO 15765-2:2024
Edition 4
International Standard
Read sample
ISO 15765-2:2024
Published (Edition 4, 2024)

ISO 15765-2:2024

ISO 15765-2:2024
CHF 173
Convert Swiss francs (CHF) to your currency


This document specifies a transport and network layer protocol with transport and network layer services tailored to meet the requirements of CAN-based vehicle network systems on controller area networks as specified in ISO 11898-1.

The diagnostic communication over controller area network (DoCAN) protocol supports the standardized abstract service primitive interface as specified in ISO 14229-2 (UDS).

This document supports different application layer protocols such as:

     enhanced vehicle diagnostics (emissions-related system diagnostics beyond legislated functionality, non-emissions-related system diagnostics);

     emissions-related on-board diagnostics (OBD) as specified in the ISO 15031 series and SAE J1979 series;

     world-wide harmonized on-board diagnostics (WWH-OBD) as specified in the ISO 27145 series; and

     end of life activation of on-board pyrotechnic devices (the ISO 26021 series).

The transport protocol specifies an unconfirmed communication.

NOTE          This document does not determine whether CAN CC, CAN FD or both are recommended or required to be implemented by other standards referencing this document.

General information

  •  : Published
     : 2024-04
    : International Standard published [60.60]
  •  : 4
     : 47
  • ISO/TC 22/SC 31
    43.180  43.040.15 
  • RSS updates

Got a question?

Check out our Help and Support

Check out our FAQs

Customer care
+41 22 749 08 88

Opening hours:
Monday to Friday - 09:00-12:00, 14:00-17:00 (UTC+1)