VOLVO
AUD-B1A041A - Speaker #4. General Electrical Failures. Circuit resistance below threshold
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 audio control module (AUD) measures the resistance in the circuit to the right rear door speaker. If it becomes too low, the code is set, most often because the two signal wires to the speaker have shorted together. The speaker then gives no sound and parking assistance may be affected.
Possible causes
- Short circuit between the two signal wires to the speaker
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 module and the speaker for contact resistance, play and oxidation
- 3Visually inspect the wiring between the module and the speaker for damage and replace it if needed
- 4Have a workshop check the speaker and replace it if it is faulty
Symptoms you may notice2
- No sound from the right rear door speaker
- Front and rear parking assistance does not work
General guidance for car owners. Diagnosis on the car can point to a different cause.