VOLVO
AUM-48FD - Control module. Faulty frequency setting. Permanent fault
System
Audio Unit Module (AUM)
Volvo models this fault code applies to
Applies to the following models:
4 modelsS60 (2001–2009), S80 (1999–2006), V70 (2000–2008), V70 XC / XC70 (2001–2007)
Show models by year and engine (4)
What does this fault code mean?
The audio control module's radio frequency setting does not match the car's market setting stored in the central electronic module (CEM). The fault is present now, so the desired radio frequencies cannot be kept. It typically appears after the audio unit has been replaced.
Possible causes
- Incorrectly installed audio unit
- Faulty configuration in the central electronic module (CEM)
What you can do
- 1Find out whether the audio unit has recently been replaced
- 2Have a workshop check that the audio control module's frequency setting matches the car's market setting
- 3If no fault is found, have the audio control module (AUM) replaced and programmed, since it is supplied without software
Symptoms you may notice1
- The desired radio frequency cannot be retained
General guidance for car owners. Diagnosis on the car can point to a different cause.