VOLVO
ICM-B100F88 - Video Input "B". 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 infotainment control module (ICM) exchanges composite video with the parking camera (PAC) on video input B. The code is set when ICM detects a break in the video signal. Although the code is named bus off, the camera's video wire is what has been broken.
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 in the owner's manual or on the fuse box cover
- 2Test the camera view with the buttons, controls or a drive, and see whether the picture is missing
- 3Check the connectors at video input B and at the parking camera. They should be firmly seated and free from oxidation
- 4Use a multimeter to confirm the video wire is continuous between the input and the control module. With a diagnostic tool, run the quick test and check 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.