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Medium/Heavy-Duty E/E Systems Diagnosis Nomenclature

Truck Bus Control and Communications Network Committee
  • Ground Vehicle Standard
  • J2403_201812
  • Current
Published 2018-12-19 by SAE International in United States

This SAE Recommended Practice is applicable to all E/E systems on MD and HD vehicles. The terms defined are largely focused on compression-ignited and spark-ignited engines. Specific applications of this document include diagnostic, service and repair manuals, bulletins and updates, training manuals, repair data bases, under-hood emission labels, and emission certification applications.

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Physical Layer, 250 Kbps, Un-Shielded Twisted Pair (UTP)

Truck Bus Control and Communications Network Committee
  • Ground Vehicle Standard
  • J1939/15_201812
  • Current
Published 2018-12-14 by SAE International in United States

This document describes a physical layer utilizing Unshielded Twisted Pair (UTP) cable with extended stub lengths for flexibility in ECU placement and network topology. Also, connectors are not specified.

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SAE J1939 Functional Safety Communications Protocol

Truck Bus Control and Communications Network Committee
  • Ground Vehicle Standard
  • J1939-76_201811
  • Current
Published 2018-11-26 by SAE International in United States

This document provides the technical requirements for implementing the SAE J1939 Functional Safety Communication Protocol in a manner determined suitable for meeting industry applicable functional safety standards.

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Automatic Baud Rate Detection Process

Truck Bus Control and Communications Network Committee
  • Ground Vehicle Standard
  • J1939/16_201811
  • Current
Published 2018-11-05 by SAE International in United States
Define a process enabling devices to detect the baud rate of a SAE J1939-11, SAE J1939-14, or SAE J1939-15 network automatically with the intent of minimizing or eliminating communication disruption between existing devices. These networks only support CBFF and CEFF Data Frames, as defined in ISO 11898-1.
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J1939 Digital Annex

Truck Bus Control and Communications Network Committee
  • Ground Vehicle Standard
  • J1939DA_201810
  • Current
Published 2018-10-31 by SAE International in United States

This document is intended to supplement the J1939 documents by offering the J1939 information in a form that can be sorted and search for easier use.

Data Link Layer

Truck Bus Control and Communications Network Committee
  • Ground Vehicle Standard
  • J1939/21_201810
  • Current
Published 2018-10-03 by SAE International in United States
The SAE J1939 documents are intended for light, medium, and heavy-duty vehicles used on or off road, as well as appropriate stationary applications which use vehicle derived components (e.g., generator sets). Vehicles of interest include, but are not limited to, on- and off-highway trucks and their trailers, construction equipment, and agricultural equipment and implements. The purpose of these documents is to provide an open interconnect system for electronic systems. It is the intention of these documents to allow Electronic Control Units to communicate with each other by providing a standard architecture. This particular document, SAE J1939-21, describes the data link layer using the Classical Extended Frame Format (CEFF) with 29-bit IDs, as defined in ISO 11898-1, December 2015. For SAE J1939, no alternative data link layers are permitted.
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Network Layer

Truck Bus Control and Communications Network Committee
  • Ground Vehicle Standard
  • J1939/31_201809
  • Current
Published 2018-09-13 by SAE International in United States
SAE J1939-31 Network Layer describes the requirements and services for Network Interconnection ECUs (NIECU) that enable electronic control units (ECUs) on a network segment to intercommunicate with other ECUs on different network segments of the vehicle network. This document defines various types of NIECUs. The information in this document applies only to ECUs that are intended to provide networking services. It is not necessary for an ECU to provide any of these services in order to be compliant with the SAE J1939 protocol.
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Heavy Duty OBD IUMPR Data Collection Tool Process

Truck Bus Control and Communications Network Committee
  • Ground Vehicle Standard
  • J3162_201809
  • Current
Published 2018-09-04 by SAE International in United States
This document describes the collection of IUMPR data required by the Heavy Duty On-Board Diagnostic regulation 13 CCR 1971.1 (l)(2.3.3), using SAE J1939-defined messages incorporated in a suite of software functions.
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Serial Control and Communications Heavy Duty Vehicle Network - Top Level Document

Truck Bus Control and Communications Network Committee
  • Ground Vehicle Standard
  • J1939_201808
  • Current
Published 2018-08-20 by SAE International in United States
This top level document provides a general overview of the SAE J1939 network and describes the subordinate document structure. This document includes definitions of terms and abbreviations which are used among the various SAE J1939 subordinate documents.
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J1939 Digital Annex

Truck Bus Control and Communications Network Committee
  • Ground Vehicle Standard
  • J1939DA_201808
  • Historical
Published 2018-08-02 by SAE International in United States

This document is intended to supplement the J1939 documents by offering the J1939 information in a form that can be sorted and search for easier use.