VOLVO
AUM-4603 - 10 disc CD changer. CD servo fault. Intermittent fault
System
Audio Unit Module (AUM)
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:
1 modelS80 (1999–2006)
Show models by year and engine (1)
What does this fault code mean?
The audio control module (AUM) has registered that the signal read from the ten-disc changer is poor, or that the disc spins unevenly. The fault is intermittent and may not be active now. It is usually caused by the disc or by the reading section of the changer.
Possible causes
- Reading fault in the ten-disc changer
- Defective ten-disc changer
- Defective CD disc
What you can do
- 1Try a different, clean and undamaged disc
- 2Clear the code and check whether it returns
- 3If the fault returns often, have the changer checked by a workshop
Symptoms you may notice1
- No sound playback from the ten-disc changer
General guidance for car owners. Diagnosis on the car can point to a different cause.