Press "Enter" to skip to content

Home » J1939 data communication

Posts tagged as “J1939 data communication”

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,…

Continue reading

Having Trouble Receiving J1939 PGNs

FAQ frequently asked questions

Having Trouble Receiving J1939 PGNs

By Wilfried Voss on February 21, 2025

We acknowledge that some users may experience issues when trying to see SAE J1939 data traffic while connecting our gateway to a J1939 network or a single J1939 node. The following aims to provide support. Documentation User Manual: A comprehensive guide detailing all features and functionalities. Download and Installation Instructions:…

Continue reading

SAE J1939: A Higher-Layer Protocol for Heavy-Duty Vehicles

By Wilfried Voss on February 15, 2025

This article is part of our comprehensive SAE J1939 online documentation. SAE J1939 is a higher-layer protocol built on the Controller Area Network (CAN), enabling serial data communication between microprocessor-based Electronic Control Units (ECUs) in heavy-duty vehicles. CAN’s Strength in Reliability and Performance CAN is designed for maximum reliability and…

Continue reading

NEXAS NL102 Review: Heavy-Duty Truck Diagnostic Scanner for J1939 and J1708 Diesel Trucks
NEXAS NL102 Review: Heavy-Duty Truck Diagnostic Scanner for J1939 and J1708 Diesel Trucks
June 1, 2026
The NEXAS NL102 Heavy Duty Truck Diagnostic Scanner is a practical and affordable diagnostic tool designed for diesel truck owners, fleet operators, and technicians who...
Detailed Review: LAUNCH CRP129 HD Heavy Duty Truck Scanner for Commercial Vehicles
Detailed Review: LAUNCH CRP129 HD Heavy Duty Truck Scanner for Commercial Vehicles
April 15, 2026
If you operate diesel trucks, maintain a small fleet, or simply prefer diagnosing your own equipment rather than paying a shop to “plug in and...
Cummins INLINE Adapter Review: Professional Engine Diagnostics for Serious Diesel Technicians
Cummins INLINE Adapter Review: Professional Engine Diagnostics for Serious Diesel Technicians
April 15, 2026
If you work with heavy-duty diesel engines long enough, one truth becomes unavoidable: eventually, the check engine light comes on, fault codes appear, and guessing...
Diesel Laptops Master Adapter Kit Review
Diesel Laptops Master Adapter Kit Review
April 11, 2026
If you work with heavy-duty trucks, off-highway equipment, or mixed fleets, you already know the frustration: every manufacturer seems determined to use a slightly different...
Heavy-Duty Truck Diagnostic Scanner for SAE J1939 and J1708 Vehicle Networks
Heavy-Duty Truck Diagnostic Scanner for SAE J1939 and J1708 Vehicle Networks
February 9, 2026
The HD601 is a diagnostic scan tool intended for use with 12 V and 24 V commercial vehicles that implement standardized heavy-duty diagnostic protocols. It...
Garmin eLog: A Straightforward Path to ELD Compliance
Garmin eLog: A Straightforward Path to ELD Compliance
February 7, 2026
Staying compliant with Hours of Service regulations does not have to mean juggling subscriptions, complex installations, or bloated fleet software. The Garmin eLog was designed...
My20 ELD Review: Low-Cost Electronic Logging Device for J1939 Trucks
My20 ELD Review: Low-Cost Electronic Logging Device for J1939 Trucks
January 15, 2026
An ELD, or Electronic Logging Device, is an electronic system used in diesel trucks to automatically record a driver’s hours of service. It connects to...
PiCAN CAN Bus HATs: Empowering Raspberry Pi for Automotive & Industrial Prototyping
PiCAN CAN Bus HATs: Empowering Raspberry Pi for Automotive & Industrial Prototyping
January 2, 2026
The PiCAN series from Copperhill Technologies is a line of CAN Bus interface boards (HATs) designed for the Raspberry Pi. These add-on boards are widely...
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...