VOLVO
ICM-B121E01 - Mute Switch. General Failure Information. Component Failures
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?
The video coder converts the video from accessories such as navigation with voice control, so that sound can play through speakers connected to the audio module (AUD) or the integrated audio module (IAM), depending on the car. The code is set when ICM detects a fault on the mute switch, the switch that silences the audio.
Possible causes
- Damaged mute switch
What you can do
- 1Check that the fuses are intact. Their positions are given in the owner's manual or on the fuse box cover
- 2Press the mute button and check that the sound is silenced and returns when it is pressed again
- 3With a diagnostic tool, read the mute switch status in live data and check that it changes when the button is pressed and released
- 4Check that the mute switch connectors are seated firmly and free from oxidation. If the fault remains, the switch may need replacing, which a workshop should do
Symptoms you may notice1
- Other audio problems
General guidance for car owners. Diagnosis on the car can point to a different cause.