VOLVO
AUD-B1A0713 - Speaker #7. General Electrical Failures. Circuit open
System
Audio Module (AUD)
Volvo models this fault code applies to
Applies to the following models:
9 modelsS60 (2011–), S80 (2007–), V40 (2013–), V40 Cross Country (2013–), V60 (2011–), V60 Cross Country (2015–), V70 (2008–), XC60 (2009–), XC70 (2008–)
What does this fault code mean?
The subwoofer has two speaker elements, SUB 1 and SUB 2. The audio control module (AUD) has registered that no signal reaches element SUB 1, usually because of a break in the wire or in the element. The code is set while the module is active, and bass from that element is lost.
Possible causes
- Break in the wire between the audio module and element SUB 1
- Open circuit in element SUB 1
What you can do
- 1Check that the audio system fuses are intact and see where they are located in the owner's manual
- 2Check the connectors at the subwoofer and at the audio module for contact resistance, play and oxidation
- 3Visually inspect the wiring to the subwoofer for breaks and replace it if needed
- 4Have a workshop check element SUB 1 and replace it if it is faulty
Symptoms you may notice2
- No sound from the subwoofer
- Front and rear parking assistance does not work
General guidance for car owners. Diagnosis on the car can point to a different cause.