Special Service Message 53004 - 2024 Nautilus, 2025 Aviator - No Audio/Sound - 24 Channel Audio Digital Signal Processing Module (DSP) No Communication

[Haz]

This SSM applies to 2024 Nautilus Reserve III (203A) and 2024 Nautilus Black Label (800A) vehicles equipped with the 28-speaker Revel Ultima 3-D Audio System...

SSM 53004   2024 Nautilus, 2025 Aviator - No Audio/Sound - 24 Channel Audio Digital Signal Processing Module (DSP) (Minor Feature Code IDBBN) No Communication

Some 2024 Nautilus and 2025 Aviator 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 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 software in the DSP. To determine if it is a software concern, remove the Nautilus DSP fuse F138 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 and applicable labor operations in Section 10 of the Service Labor Time Standards (SLTS) Manual.

 

 

 

 

 

 

28-Speaker System

Item	Description
1	Instrument panel center speaker (counts as 3 speakers)
2	Left/right front door woofer speakers
3	Left/right front door tweeter speakers
4	Left/right front door midrange speakers
5	Front overhead speakers (counts as 2 speakers each)
6	Left/right rear door woofer speakers
7	Left/right rear door tweeter speakers
8	Left/right rear door midrange speakers
9	Rear overhead speakers (counts as 2 speakers each)
10	Left/right D-pillar speakers (counts as 2 speakers each)
11	Subwoofer speaker

 

 

Audio/Connectivity/Infotainment System Hidden Components

 

Item	Description
1	AM / FM antenna isolator filter
2	TCU
3	ACM
4	ANC microphones
5	Voice microphones
6	SIMA (left steering wheel switch)
7	APIM
8	DSP (13/28 speaker)
9	Subwoofer amplifier
10	AM / FM 1 antenna amplifier

 

Edited October 1 by Haz