VOLVO
AUD-U300042 - Control Module. System Internal Failures. General memory failure
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 module (AUD) checks its internal components. The code is set when the module cannot read or write its memory, which usually means a damaged audio module. The module then uses default values, and the sound may be weak or poor.
Possible causes
- Damaged audio control module
What you can do
- 1Check that the fuses are intact and see where they are located in the owner's manual
- 2Check whether the sound returns to normal after switching the ignition off and on
- 3Read the code with diagnostic equipment and establish whether the memory is permanently damaged
- 4Replace the audio control module if the fault remains
Symptoms you may notice1
- Weak or poor sound
What the fault can affect1
- Default values are used
General guidance for car owners. Diagnosis on the car can point to a different cause.