VOLVO
AUD-0012 - Buttons headset 1. Signal too low
System
Audio Module (AUD)
Volvo models this fault code applies to
Applies to the following models:
1 modelXC90 (2003–)
Show models by year and engine (1)
What does this fault code mean?
The audio control module (AUD) measures too low a signal from the buttons for headphone output 1, which points to a short circuit in that circuit. The buttons for this output do not work. The fault can lie in the wire to ground, in the wiring between the signal wires, or in the headphone panel.
Possible causes
- Short circuit to ground in the signal wire between the module and headphone output 1
- Short circuit between the signal wires to headphone output 1
- Short circuit inside the left headphone panel
What you can do
- 1Check that the connector to the left headphone panel is fully engaged and undamaged
- 2Inspect the wiring to the headphone socket for chafing and pinching, especially where it could short to the bodywork
- 3Check that the buttons on the panel spring back and are not stuck
- 4Check the circuit and the headphone panel with diagnostic equipment and correct the fault
Symptoms you may notice1
- The buttons for the headphone output do not work
General guidance for car owners. Diagnosis on the car can point to a different cause.