Truck SAE Codes such as J1939, J1708, SPN, FMI, & MID Explained

The Society of Automotive Engineers (SAE) and the American Trucking Association (ATA) Without making this too complicated, the short version is this. Commercial trucks started to go away from mechanical systems to electronic systems in the early 1990’s. When the first generations of these trucks started to come on the market, each truck maker was using their own special plugs and their own proprietary tools. This is where the Cummins QuickCheck, ProLink 9000, and other tools started to emerge. These were handheld devices, and in some cases you could purchase additional cartridges to get the software you needed. Here...

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