No audio/sound condition with no communication with the DSP. To confirm a vehicle is built with a certain...

Bulletin number

SSM 53993

Component

Electrical system

Summary

Some 2025 Aviator/Navigator vehicles equipped with a 24 channel audio digital signal processing module (DSP) (minor feature code IDBBN) may exhibit a no audio/sound condition with no communication with the DSP. To confirm a vehicle is built with a certain minor feature code, review the build information by double-clicking the vehicle identification number (VIN) in the upper left corner in the Professional Technician System (PTS). This concern may be due to the software in the DSP. To determine if it is a software concern, remove the DSP fuse, F40 for Aviator or F5 for Navigator, and inspect the fuse for an open and make sure the fuse has proper blade contact. After one minute, reinstall the good fuse. If the concern is still present or a fuse concern is found, continue with normal Workshop Manual diagnostics, Section 415-00 Information and Entertainment System > General Information > Diagnosis and Testing. If communication has been re-established with the DSP, reprogram the DSP using the latest software level of the Ford Diagnosis and Repair System (FDRS) scan tool. For claiming, use causal part 18B849

Owners of these vehicles have filed 8 complaints in the electrical category.