VOLVO
AUD-B1A0749 - Speaker #7. System Internal Failures. Internal electronic failure
Układ
Moduł audio (AUD)
Modele Volvo, których dotyczy ten kod błędu
Dotyczy następujących modeli:
9 modeliS60 (2011–), S80 (2007–), V40 (2013–), V40 Cross Country (2013–), V60 (2011–), V60 Cross Country (2015–), V70 (2008–), XC60 (2009–), XC70 (2008–)
Co oznacza ten kod błędu?
The subwoofer has two speaker elements, SUB 1 and SUB 2. The audio control module (AUD) measures the DC voltage on the outputs to element SUB 1. If the difference between them becomes too large, the code is set. The fault most often lies in the module, but a short to supply voltage or to ground in the wiring can give the same symptoms.
Możliwe przyczyny
- Damaged audio control module
- Short circuit to supply voltage in the wiring
- Short circuit to ground in the wiring
Co możesz zrobić
- 1Check whether similar codes are stored for the other speakers, since a shared fault is then likely
- 2Check the connectors at the subwoofer and at the audio module for contact resistance, play and oxidation
- 3Visually inspect the wiring to element SUB 1 and replace it if damaged
- 4Check the subwoofer and audio module with diagnostic equipment and replace the faulty part
Objawy, które możesz zauważyć2
- No sound from the subwoofer
- Front and rear parking assistance does not work
Ogólne wskazówki dla właścicieli. Diagnostyka na samochodzie może wskazać inną przyczynę.