Powertrain Control Interface for Electronic Controls Used in Medium- and Heavy-Duty Diesel On-Highway Vehicle Applications(STABILIZED Aug 2011)
This SAE Recommended Practice provides a development or possibly interim production communication protocol between engine, transmission, ABS/traction control, and retarder systems until higher speed communication links are established.
J1922 is no longer actively supported by a current ECU and has been superseded by J1939 on all current North American trucks, but it is installed and working in thousands of trucks today. J1922 is being moved to a Non-current status, since it is not being implemented in new products, but still needs to be available to maintain the trucks that are using it.
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