General diagnosis instructions for checking the telecommunication system: Notes
WARNING: This page is about a different car, the 2013 BMW X5, 2012 BMW X5, and 2011 BMW X5. However, it is still accessible from the selected car via links, so may be relevant.
This service information describes the procedure for the < telecommunications system check > .
This procedure is valid for the diagnosis of the following systems:
- ULF-SBX interface box
- ULF-SBX-H interface box High
- TCU Telematics control unit
- CBX-MEDIA ComBox Multimedia
- CBX-ECALL ComBox emergency call
- Headunit-supported telephony
- Telematic Communication Box (TCB)
- Telematics Communication Box Basic (TCB-B)