This article relies excessively on references to primary sources. Please improve this article by adding secondary or tertiary sources. Find sources: "J1922" – news · newspapers · books · scholar · JSTOR (December 2010) (Learn how and when to remove this message)

SAE protocol J1922 is a standard for "Powertrain Control Interface for Electronic Controls Used in Medium- and Heavy-Duty Diesel On-Highway Vehicle Applications" (published December 4, 2008). 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.

See also