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Ford TSB #SSM 51141
2021 Ford F-150
TSB Document:
Affected Component: EQUIPMENT:APPLIANCE:TV/RADIO/SPEAKERS
- Summary
- Some 2021-2022 F-150 vehicles equipped with the branded B and O audio the rear speaker audio may appear to have reduced sound. Fading audio volume to the rear speakers/reduced audio volume from rear speakers is an operating characteristic of the B and O audio system. If the audio control module (ACM) and digital signal processing (DSP) module passes the Self-Test and Network Test without any diagnostic trouble codes (DTCs) setting as hard faults, no further diagnostics is recommended.
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