VOLVO
SUB-001D - 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?
The subwoofer amplifier (SUB) has detected an internal fault in itself. The fault lies in the amplifier unit, and the result is that the subwoofer goes silent while the other speakers keep working.
Possible causes
- Internal fault in the subwoofer amplifier
- A one-off disturbance, if the fault has only occurred once
What you can do
- 1Check the subwoofer amplifier fuse
- 2Clear the code and see whether it returns
- 3If the fault returns or is permanent, the subwoofer amplifier needs replacing
Symptoms you may notice1
- No sound from the subwoofer
General guidance for car owners. Diagnosis on the car can point to a different cause.