What does fault code AUD-0021 mean?

Diagnostic fault code details for AUD-0021 (Volvo C30 (2007–2013), Volvo C30 Electric (2011–2013), Volvo C70 (2006–2013)). Repair service at OBD Tuning.

VOLVO

AUD-0021 - Control module. Internal fault

System

Audio Module (AUD)

Volvo models this fault code applies to

Applies to the following models:

6 models

C30 (2007–2013), C30 Electric (2011–2013), C70 (2006–2013), S40 (2004–2013), V50 (2004–2013), XC90 (2003–)

Show models by year and engine (6)

What does this fault code mean?

The audio control module (AUD) has registered an internal fault. Because the fault lies in the module itself, there is no external cause to trace in the wiring. The result is that there is no sound from the speakers, and the code.

Possible causes

Internal fault in the audio control module (AUD)

What you can do

1Check that the audio system fuses are intact
2Clear the code and check whether it returns
3If the fault is intermittent it may have been temporary, but if it returns the audio control module should be replaced
4A permanent fault means the audio control module must be replaced by a workshop

Symptoms you may notice1

No sound from the speakers

General guidance for car owners. Diagnosis on the car can point to a different cause.