BS ISO 11992-4:2014

Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Symbols and abbreviated terms
5 General definitions
6 Unified diagnostic services implementation
7 Application layer requirements
8 Presentation layer requirements
9 Session layer requirements
10 Transport layer requirements
11 Network layer requirements.
12 Data link layer requirements
13 Physical layer requirements
Annex A (normative) - Basic diagnostic service parameters
Annex B (normative) - Address definitions
Annex C (informative) - Message routing examples
Bibliography

Provides the diagnostic communication over a CAN between the towing and towed vehicle(s) of a commercial vehicle and its trailer(s), according to ISO 11992-2 or ISO 11992-3, which allows a diagnostic tester (client) to control diagnostic functions in an on-vehicle ECU (server) embedded in a road vehicle using the communication gateways between the vehicles.

This part of ISO11992 specifies the diagnostic communication over a CAN between the towing and towed vehicle(s) of a commercial vehicle and its trailer(s), according to ISO11992-2 or ISO11992-3, which allows a diagnostic tester (client) to control diagnostic functions in an on-vehicle ECU (server) embedded in a road vehicle using the communication gateways between the vehicles.

It defines the data link layer’s specific implementation of the unified diagnostic communication requirements, mainly given in the ISO14229 and ISO15765 document series by additional requirements and restrictions specific to the implementation of UDS on an ISO11992 network.

This part of ISO11992 does not apply to any non-diagnostic message transmission use of the communication data link between two ECUs.