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Posts tagged as “J1939 PGN and SPN”

Fundamentals of SAE J1939: The Industry Standard for Heavy-Duty Vehicle Communication

By Wilfried Voss on March 11, 2025

This article is part of our comprehensive SAE J1939 online documentation. The Society of Automotive Engineers (SAE) Truck and Bus Control and Communications Subcommittee has developed a comprehensive set of standards governing the design and implementation of devices that transmit electronic signals and control information among vehicle components. SAE J1939,…

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Using Contactless CAN and SAE J1939 Readers for Non-Intrusive Vehicle and Industrial Diagnostics
Using Contactless CAN and SAE J1939 Readers for Non-Intrusive Vehicle and Industrial Diagnostics
December 18, 2025
Accessing CAN bus data has traditionally required either a diagnostic connector or a direct electrical connection to the CAN-H and CAN-L lines. This applies equally...
Learn CAN Bus: How Modern Cars Communicate and How to Decode Vehicle Data
Learn CAN Bus: How Modern Cars Communicate and How to Decode Vehicle Data
December 17, 2025
Why Your Car Is Smarter Than You Think—and How You Can Learn to Speak Its Language It began with a deceptively simple question: why can...
The Car Hacker’s Handbook: Understanding Automotive Security, CAN Bus Vulnerabilities, and Vehicle Hacking Techniques
The Car Hacker’s Handbook: Understanding Automotive Security, CAN Bus Vulnerabilities, and Vehicle Hacking Techniques
December 17, 2025
Modern cars are more computerized than ever, packed with infotainment and navigation systems, wireless connectivity, automatic software updates, advanced driver assistance features, and countless embedded...
The CAN Bus Companion for Arduino and Raspberry Pi
The CAN Bus Companion for Arduino and Raspberry Pi
December 17, 2025
This book provides a hands-on introduction to Controller Area Network (CAN) bus technology through practical projects using the Arduino Uno and the Raspberry Pi 4....
J1939 Diagnostics Made Easy: How Modern Scan Tools Simplify Diesel Engine Troubleshooting
J1939 Diagnostics Made Easy: How Modern Scan Tools Simplify Diesel Engine Troubleshooting
December 8, 2025
For diesel truck owners — whether you’re running a heavy-duty rig for work or simply maintaining a robust personal vehicle — having the right diagnostic...

Using Contactless CAN and SAE J1939 Readers for Non-Intrusive Vehicle and Industrial Diagnostics
Using Contactless CAN and SAE J1939 Readers for Non-Intrusive Vehicle and Industrial Diagnostics
December 18, 2025
Accessing CAN bus data has traditionally required either a diagnostic connector or a direct electrical connection to the CAN-H and CAN-L lines. This applies equally...
J1939 Diagnostics Made Easy: How Modern Scan Tools Simplify Diesel Engine Troubleshooting
J1939 Diagnostics Made Easy: How Modern Scan Tools Simplify Diesel Engine Troubleshooting
December 8, 2025
For diesel truck owners — whether you’re running a heavy-duty rig for work or simply maintaining a robust personal vehicle — having the right diagnostic...
DEF Sensor Simulator Explained: Background, Function, and DIY Assembly Guide
DEF Sensor Simulator Explained: Background, Function, and DIY Assembly Guide
November 25, 2025
Please consider! The DEF Sensor Simulator is not an off-the-shelf device. It was originally created by a team of automotive engineers as a proof-of-concept solution...
Unlocking J1939 Telematics: Teensy 4.1 Triple CAN Bus Board with Ethernet and GNSS
Unlocking J1939 Telematics: Teensy 4.1 Triple CAN Bus Board with Ethernet and GNSS
November 20, 2025
In the heavy-vehicle, mobile-machinery and industrial equipment world, the CAN bus remains a workhorse for on-board networks. But merely having physical CAN isn’t enough: what...
Heavy Duty Truck Systems Explained: A Deep Dive into the Top Diesel Technician Textbook
Heavy Duty Truck Systems Explained: A Deep Dive into the Top Diesel Technician Textbook
November 18, 2025
If you’re looking to dive deep into the world of medium- and heavy-duty trucks—whether as a technician, a fleet maintenance manager, or a student of...
Unlocking the Engine Room: The ANCEL HD601 J1939 Truck Scanner for Heavy-Duty Diagnostics
Unlocking the Engine Room: The ANCEL HD601 J1939 Truck Scanner for Heavy-Duty Diagnostics
November 15, 2025
Maintaining and troubleshooting heavy-duty trucks requires tools that go far beyond a basic automotive OBD-II reader. Whether you work with Freightliner, International, Paccar, Detroit Diesel,...
INLINE Cummins adapter with SAE J1939/J1708 support for fast, reliable PC-based engine diagnostics
INLINE Cummins adapter with SAE J1939/J1708 support for fast, reliable PC-based engine diagnostics
November 15, 2025
If you’re working with a Cummins heavy-duty engine, you already know the power and reliability these machines deliver. But to keep them performing at their...
SAE J1939 250k/500k Baud Rate Converter with Silent Mode Support – A Game-Changer for Modern and Legacy Vehicle Integration
SAE J1939 250k/500k Baud Rate Converter with Silent Mode Support – A Game-Changer for Modern and Legacy Vehicle Integration
November 5, 2025
A recent internal market study by Copperhill Technologies uncovered a surprising but critical shortcoming across all commercially available SAE J1939 baud rate converters: none of...
Bringing Diagnostic Clarity to Lithium-Ion Batteries in Rail
Bringing Diagnostic Clarity to Lithium-Ion Batteries in Rail
September 13, 2025
Rail is in the midst of a big energy storage shift: away from lead-acid batteries and toward lithium-ion. The reasons are persuasive: lithium-ion offers higher...
Teensy 4.1 Triple CAN-Bus Board with Ethernet: Bridging CAN Networks and IoT
Teensy 4.1 Triple CAN-Bus Board with Ethernet: Bridging CAN Networks and IoT
August 28, 2025
The Teensy 4.1 Triple CAN-Bus Board with Ethernet is a new product from Copperhill Technologies, expanding our lineup of CAN bus and IoT development tools....