Division 4.3

the following information shall be transmitted between the C-ITS stations:

1. a))

   axle weight of the trailers or semi-trailers being towed;

2. b))

   messages containing ‘OBW communication error’ events: a OBW communication error event shall be triggered when the C-ITS stations fail to establish a mutual secured communication in accordance with point 5.1 for more than three attempts;

3. c))

   messages containing a ‘security breach attempt’ event: a security breach attempt event shall be triggered when an attempt to manipulate the OBW as set out in point 5.2 and in the Appendix has been detected by the OBW.