VOLVO
SUB-0003 - Control module. Internal fault
System
Subwoofer Module (SUB)
Volvo models this fault code applies to
This fault code has different meanings depending on model, model year or engine. Select the meaning that applies to your car.
Applies to the following models:
3 modelsS40 (2004–2013), V50 (2004–2013), XC90 (2003–)
Show models by year and engine (3)
What does this fault code mean?
The subwoofer module has registered an open-circuit in the wire feeding voice coil 2. The fault may cause muffled sound or no sound from the speaker.
Possible causes
- Open-circuit in the wire from the amplifier to voice coil 2, in the subwoofer module
- Open-circuit in the wire from the amplifier to voice coil 2, in the speaker
What you can do
- 1Erase the code with a diagnostic tool and see whether it returns after the ignition has been off for a while
- 2Check that the connectors to the speakers are firmly seated and free from oxidation
- 3If the fault remains, have a workshop check the signal cable to voice coil 2 and replace the subwoofer module if needed
- 4After the work, check that sound comes from the loudspeakers again
Symptoms you may notice2
- No sound from the loudspeakers
- Muted sound from one loudspeaker
General guidance for car owners. Diagnosis on the car can point to a different cause.