VOLVO
SUB-U300012 - Control Module. General Electrical Failures. Circuit short to battery
System
Subwoofer Module (SUB)
Volvo models this fault code applies to
Applies to the following models:
3 modelsV70 (2008–), XC60 (2009–), XC70 (2008–)
Show models by year and engine (3)
What does this fault code mean?
Although the code is named short to voltage, it applies to the power consumption of the internal components in the control module. The consumption is too high, which indicates that the subwoofer control module is damaged. The bass speaker can then stop producing sound.
Possible causes
- Damaged subwoofer control module
What you can do
- 1Check that the fuses for the audio system are intact
- 2Clear the code and test-drive with the audio system on. If it returns, the subwoofer control module is probably damaged
- 3Have a workshop replace the subwoofer control module if the fault is permanent
Symptoms you may notice2
- Other audio problems in the car's sound system
- No sound from the bass speaker
General guidance for car owners. Diagnosis on the car can point to a different cause.