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Standard Interface and Protocol Foundations This SAE Recommended Practice establishes a common framework for developing EDR retrieval tools. It designates the SAE J1962 diagnostic connector as the primary physical interface for on-board retrieval and defines the protocols for imaging, translating,…

The Need for Standardization in CAN FD Physical Layers High-speed CAN (HSC) at 500 kbps with CAN FD data at 2 Mbps provides a cost-effective upgrade path for in-vehicle networks. However, inconsistencies in OEM-specific implementations led to compatibility issues, especially…

The SAE J2284-2 standard, revised in 2023, defines a robust framework for deploying 250 kbps High-Speed CAN (HSC) networks in vehicle applications. It aligns Electronic Control Unit (ECU) physical layer, data link layer, and media design criteria to promote interoperability…

SAE J1939-03 provides essential guidelines for integrating on-board diagnostics (OBD) in heavy-duty vehicles using the SAE J1939 network. This recommended practice covers everything from physical layer design to service tool requirements, ensuring compliance with CARB, EPA, EU, and WWH OBD…

SAE J2590 defines PMODE, a standardized power management scheme for in-vehicle networks, enabling nodes to efficiently transition between ACTIVE, SLEEP, and INACTIVE states. By implementing PMODE, engineers can reduce overall power consumption, support selective wake‑up, and ensure reliable operation across…

The SAE J2534-2/10_0500 standard defines how to add analog input functionality to Pass-Thru vehicle diagnostic interfaces. Released in 2022 and aligned with API version 05.00, this document is part of a series that modularizes each extended feature for easier maintenance.…

The SAE J2534-2/9_500 standard extends the pass-thru interface to support Ethernet NDIS, enabling high-speed vehicle diagnostics and programming over automotive Ethernet networks. This document defines the required changes to the SAE J2534-1_0500 API for integrating the Microsoft Network Driver Interface…

Overview and Rationale The SAE J2534-2-2-2022 standard defines extended features for pass-thru devices to support the GM UART protocol for vehicle diagnostics. It is part of the SAE J2534 series and updates previous versions to align with SAE J2534-1_0500 (API…

This article summarizes findings from SAE Information Report J3171, which provides a literature review and expert interview results on universal design principles for Automated Driving Systems-Dedicated Vehicles (ADS-DVs). The report specifically addresses how to accommodate users who cannot obtain a…

This article provides professional guidance on identifying and repairing high strength steel (HSS) components in automotive structures, based on the principles outlined in SAE J1554 (1985). As vehicles increasingly use HSS for weight reduction and crash energy management, repair technicians…