VOLVO
SUB-0022 - Control module. Internal fault
System
Subwoofer Module (SUB)
Volvo models this fault code applies to
Applies to the following models:
1 modelC70 (2006–2013)
Show models by year and engine (1)
What does this fault code mean?
An internal fault in the subwoofer module makes the subwoofer silent. The fault lies in the module and not in the speaker wiring.
Possible causes
- Internal fault in the subwoofer module
What you can do
- 1Read out and erase the code with a diagnostic tool
- 2If the code returns, have a workshop replace the subwoofer module
- 3After replacement, check that the subwoofer plays sound again
Symptoms you may notice1
- No sound from the subwoofer
General guidance for car owners. Diagnosis on the car can point to a different cause.