VOLVO
ICM-B100E88 - Video Input "A". Bus Signal / Message Failures. Bus off
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 line from video input A, linking the infotainment module (ICM) to the television module or rear entertainment, can be interrupted. The code is set when ICM detects a break in the video signal. Although the code is named bus off, it is an open circuit in the video path that it describes.
Possible causes
- Sync signal from the CVBS video input reaches the control module incorrectly
- Loose connection on the composite video cable (CVBS) where it meets the control module
- Damaged wire running from the control module to the CVBS video input
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
- 2Try the affected functions with the buttons, controls or a short test drive to see whether any picture appears
- 3Check that the connectors at video input A and at the television module or rear entertainment are seated properly and free from oxidation
- 4Use a multimeter to check the video wire is continuous. With a diagnostic tool, run the quick test and see whether the code returns
Symptoms you may notice3
- Other video problems
- Poor image quality or no picture on the front screen
- Rear entertainment gives no, reduced or incorrect function
General guidance for car owners. Diagnosis on the car can point to a different cause.