This service bulletin addresses the Freightliner FLA COE, FLB COE, FLD Conventional, FLC 112 Conventional, Century Class Conventional, Argosy COE, Cargo, Columbia, Coronado, Business Class M2, and Cascadia models. It focuses on checking harness connections for Eaton AutoShift and UltraShift transmissions, which are automated manual transmissions (AMTs) widely used in Class 7 & 8 commercial trucks. These transmissions are integral to the powertrain's performance, affecting gear selection, shifting logic, and overall vehicle operation. Proper maintenance of their electrical connections is crucial for preventing performance degradation, shifting errors, and diagnostic trouble codes, ensuring the reliable operation of these heavy-duty vehicles.

This document provides essential technical service information for technicians and fleet maintenance personnel. It details diagnostic procedures, including inspection of harness connectors, pin continuity testing, and visual checks for corrosion or damage, specifically targeting issues that can affect Eaton AutoShift and UltraShift transmission performance. The bulletin aims to reduce vehicle downtime and repair costs by offering a systematic approach to identifying and rectifying common harness connection faults. Understanding and applying the information within this service bulletin is vital for maintaining the operational integrity and safety of Freightliner trucks equipped with these advanced transmission systems.

This service bulletin addresses the Freightliner FLA COE, FLB COE, FLD Conventional, FLC 112 Conventional, Century Class Conventional, Argosy COE, Cargo, Columbia, Coronado, Business Class M2, and Cascadia models. It focuses on checking harness connections for Eaton AutoShift and UltraShift transmissions, which are automated manual transmissions (AMTs) widely used in Class 7 & 8 commercial trucks. These transmissions are integral to the powertrain's performance, affecting gear selection, shifting logic, and overall vehicle operation. Proper maintenance of their electrical connections is crucial for preventing performance degradation, shifting errors, and diagnostic trouble codes, ensuring the reliable operation of these heavy-duty vehicles.

This document provides essential technical service information for technicians and fleet maintenance personnel. It details diagnostic procedures, including inspection of harness connectors, pin continuity testing, and visual checks for corrosion or damage, specifically targeting issues that can affect Eaton AutoShift and UltraShift transmission performance. The bulletin aims to reduce vehicle downtime and repair costs by offering a systematic approach to identifying and rectifying common harness connection faults. Understanding and applying the information within this service bulletin is vital for maintaining the operational integrity and safety of Freightliner trucks equipped with these advanced transmission systems.