VOLVO
ICM-B104D23 - Button 4. General Signal Failures. Signal stuck low
System
Infotainment Control Module (ICM)
Volvo models this fault code applies to
Applies to the following models:
9 modelsS60 (2011–), S80 (2007–), V40 (2013–), V40 Cross Country (2013–), V60 (2011–), V60 Cross Country (2015–), V70 (2008–), XC60 (2009–), XC70 (2008–)
What does this fault code mean?
ICM tests whether the CD button or the volume button has jammed. The code is set when either has been held active for longer than allowed, so the label button 4 does not match the CD and volume buttons that are actually checked.
Possible causes
- The CD button has jammed in the pressed position
- The volume button has jammed in the pressed position
What you can do
- 1Check that the fuses are intact. Their locations are in the owner's manual or on the fuse box cover
- 2Press the CD button and the volume button separately and see whether each returns
- 3Check that the buttons are not sticking and that there is no dirt around them
- 4With a diagnostic tool, check in live data that the CD and volume values switch when their buttons are used. A workshop can replace the keypad if stuck
Symptoms you may notice4
- Buttons on the keypad do not work
- Steering wheel audio controls do not work
- The audio unit does not work
- On S80, V70 and XC70 built before the end of August 2008: the display on the audio unit or the radio does not work
General guidance for car owners. Diagnosis on the car can point to a different cause.