This Service Bulletin addresses a specific issue related to the ICU4M (Integrated Control Unit) module in various Freightliner trucks. The bulletin outlines a fault condition where the ICU4M is either missing or failing to report VORAD (Vehicle Operation & Roadside Assistance Device) information. The fault is identified by the diagnostic codes SA42 SPN 639 FMI 07, which translates to a "Missing VORAD Information or Reporting Fault." It provides detailed guidance on troubleshooting and resolving this fault. The bulletin covers a wide range of Freightliner models including FLA, FLB, FLD, Business Class, FLC 112, Century Class, Argosy, Cargo, Columbia, Coronado, Business Class M2, Cascadia, and 108SD/114SD. The information within this Service Bulletin is crucial for technicians and service professionals working on these Freightliner trucks to properly diagnose and repair the ICU4M-related VORAD issue.

The "ICU4M Missing VORAD Information or Reporting Fault SA42 SPN 639 FMI 07 sb54215" error message pertains to a malfunction within the electronic control system of a Freightliner truck. Specifically, it indicates an issue with the Vehicle On-Road Automated Detection (VORAD) system, which is designed to enhance safety by alerting drivers to potential hazards like vehicles in blind spots, lane departures, and potential collisions. The error code "SA42 SPN 639 FMI 07" points to a communication issue between the ICU4M (Integrated Control Unit) and the VORAD system, suggesting that the ICU4M is not receiving the required information from the VORAD sensor. This could be caused by a variety of factors, including faulty wiring, a defective VORAD sensor, or a communication issue within the electronic control module itself. The presence of this error message highlights a critical concern for Freightliner truck owners and operators. A non-functional VORAD system compromises the safety features designed to protect drivers and other road users. Addressing this fault requires immediate attention to prevent potential accidents and ensure the proper functioning of the truck's safety systems. The repair process may involve diagnosing the fault through diagnostic tools, checking wiring connections, replacing faulty components, and updating or reprogramming the electronic control modules. Thorough troubleshooting and repair are essential to restore optimal performance and safety for Freightliner trucks impacted by this error.