This Service Bulletin details the implementation of an alternate transmission interface connector for a variety of Freightliner trucks. It covers models including the FLA COE, FLB COE, FLD Conventional, Business Class, FLC 112 Conventional, Century Class Conventional, Argosy COE, Cargo, Columbia, Coronado, Business Class M2, Cascadia, and 108SD/114SD. The bulletin provides comprehensive information regarding the new connector, its specifications, installation procedures, and any associated troubleshooting guidance. It is a valuable resource for technicians and service personnel working on these Freightliner trucks, enabling them to understand and address the changes related to the transmission interface connector.

The "Alternate Transmission Interface Connector" (ATIC) is a crucial component in the intricate network of systems that control the transmission of Freightliner trucks. Designed to provide a secondary connection point for the transmission control module (TCM), the ATIC plays a vital role in ensuring seamless communication between the engine, transmission, and other vehicle systems. Its presence is essential for various functions, including transmission shifting, gear selection, and fault diagnosis. While the exact implementation and functionality may vary depending on the specific vehicle model and year, the fundamental purpose remains consistent: to provide a redundant pathway for data transmission and control signals. This connector is particularly important for Freightliner truck models such as the FLA COE, FLB COE, FLD Conventional, Business Class, FLC 112 Conventional, Century Class Conventional, Argosy COE, Cargo, Columbia, Coronado, Business Class M2, Cascadia, and 108SD/114SD. Its use across diverse truck types underscores its significance in the Freightliner product lineup, as it enables efficient and reliable transmission operation across a wide range of applications. The ATIC is commonly found on trucks equipped with automated manual transmissions (AMT), where its presence ensures smooth and efficient gear changes. In addition, the ATIC serves as a critical point for troubleshooting and diagnostics, allowing technicians to access and interpret data from the TCM, aiding in the identification and resolution of transmission-related issues.