VOLVO
AUD-B1A1011 - Rear speaker. General Electrical Failures. Circuit short to ground
System
Audio Module (AUD)
Volvo models this fault code applies to
Applies to the following models:
4 modelsS80 (2007–), V70 (2008–), XC60 (2009–), XC70 (2008–)
Show models by year and engine (4)
What does this fault code mean?
The audio control module (AUD) monitors the amplifier circuitry that serves the left and right rear speakers. If the resistance becomes too low, the code is set, most often because the signal wires to one speaker have shorted together.
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 rear speakers and at the audio module for contact resistance, play and oxidation
- 3Inspect the wiring to the rear speakers for damage and replace it if needed
- 4Check the speaker circuits with diagnostic equipment
Symptoms you may notice1
- No sound from the speaker
General guidance for car owners. Diagnosis on the car can point to a different cause.