WenmarOpen by Wenmar Pro

B1474 on the 2015 Chrysler 300

The bulletins listed name this code in NHTSA's summary, or are about the same components. A bulletin or a recall listed here may apply to the model year. None of it is a diagnosis.

This code is specific to a manufacturer and is not described here. Its meaning is in the manufacturer's service information.

Bulletins for this model year that name B1474
08-050-15 REV. A2022-08-08. Service bulletin. Flash: Poor Audio Sound Quality This bulletin involves updating the Amplifier (AMP) software. The customer may describe one or more of the following symptoms/conditions: ? Speakers not loud enough. ? Speakers Buzz/Rattle. ? Poor Sound Quality from Speakers. Upon further investigation the technician may find one or more of the following Diagnostic Trouble Codes (DTCs): ? B1474-13-Channel 5 Audio Speaker Output - Circuit Open ? B1479-13-Channel 6 Audio Speaker Output - Circuit Open
08-050-15 REV. A2022-07-25. Service bulletin. Flash: Poor Audio Sound Quality This bulletin involves updating the Amplifier (AMP) software. The customer may describe one or more of the following symptoms/conditions: ? Speakers not loud enough. ? Speakers Buzz/Rattle. ? Poor Sound Quality from Speakers. Upon further investigation the technician may find one or more of the following Diagnostic Trouble Codes (DTCs): ? B1474-13-Channel 5 Audio Speaker Output - Circuit Open ? B1479-13-Channel 6 Audio Speaker Output - Circuit Open
08-050-15 REV-A2018-12-17. Service bulletin. Flash: Poor Audio Sound Quality This bulletin involves updating the Amplifier (AMP) software. The customer may describe one or more of the following symptoms/conditions: ? Speakers not loud enough. ? Speakers Buzz/Rattle. ? Poor Sound Quality from Speakers. Upon further investigation the technician may find one or more of the following Diagnostic Trouble Codes (DTCs): ? B1474-13-Channel 5 Audio Speaker Output - Circuit Open ? B1479-13-Channel 6 Audio Speaker Output - Circuit Open

3 on file from NHTSA, as of 2026-10-19. See them in the bulletin list. A bulletin lists model years: read the document for which vehicles it concerns.