This part of ISO 11992 specifies the data communication for diagnostic purposes on a serial data link between
a road vehicle and its towed vehicle(s).
This part of ISO 11992 is applicable to road vehicles of a maximum authorized total mass greater than
3 500 kg.
ISO 11992-4:2005 Referenced Document
ISO 11898-1 Road vehicles - Controller area network (CAN) - Part 1: Data link layer and physical signalling*, 2015-12-01 Update
ISO 11992-1 Road vehicles — Interchange of digital information on electrical connections between towing and towed vehicles — Part 1: Physical and data-link layers*, 2019-05-02 Update
ISO 11992-2 Road vehicles — Interchange of digital information on electrical connections between towing and towed vehicles — Part 2: Application layer for brakes and running gear*, 2023-03-10 Update
ISO 11992-3 Road vehicles — Interchange of digital information on electrical connections between towing and towed vehicles — Part 3: Application layer for equipment other than brakes and running gear*, 2021-05-21 Update
ISO 14229-1 Road vehicles — Unified diagnostic services (UDS) — Part 1: Application layer — Amendment 1*, 2022-10-25 Update
2023ISO 11992-4:2023 Road vehicles — Interchange of digital information on electrical connections between towing and towed vehicles — Part 4: Diagnostic communication
2014ISO 11992-4:2014 Road vehicles - Interchange of digital information on electrical connections between towing and towed vehicles - Part 4: Diagnostic communication
2006ISO 11992-4:2005/Cor 1:2006 Road vehicles - Interchange of digital information on electrical connections between towing and towed vehicles - Part 4: Diagnostics; Technical Corrigendum 1
2005ISO 11992-4:2005 Road vehicles - Interchange of digital information on electrical connections between towing and towed vehicles - Part 4: Diagnostics