a protocol for the data exchange between braking and auxilliary data collection systems, e.g. telematics, on towed vehicles with a mass greater than 3500 kg

What’s inside?

  1. Scope
  2. Normative reference
  3. Terms and definitions
  4. Abbreviations
  5. General specifications
  6. Application layer
    • Message frame format
    • Parameter specification
    • Diagnostic specification


This protocol outlines the interface between braking and data collection systems on towed vehicles. It aims to increase the amount of data from and interoperability between electronic braking systems.


CAN bus, trailer, telematics, EBS, electronic braking system, ISO 11898 and 11992, SAE J1939 and 15765

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The development of the TCAN is an initiative of the European Transport Board and supported by Haldex Brake Products, Knorr Bremse and Wabco Vehicle Control Systems. This protocol was officially released in 2014 and will be implemented during the next release of the applicable hardware and/or software.

knorr bremse

Knorr-Bremse are pleased to have played a leading role in developing the TCAN specification. We firmly believe that its introduction will improve the data collection and analysis capability on trailers, leading to greater efficiency and safety for both fleets and operators.

M. Fry, Knorr Bremse


We are proud to share the leadership of this innovative initiative as it significantly benefits fleet managers. By setting a new industry standard for such critical data, transport professionals can further increase vehicle safety and improve operational efficiency.

M. Cuyx, Wabco


Haldex is pleased to be involved with this initiative, which will reduce complexity and improve clarity for both fleets and their telematics providers.

D. Harrison, Haldex

TIP Trailer Services logo

It’s great to see the 3 major EBS manufacturers agree on an industry standard. With this in place we can read and analyze data independently of the ECU. This makes it possible to compare performance and equipment health between units or even entire fleets.

P. Sijs, TIP Trailer Services