Subject sos
BMW technical service bulletin B840715 for 2012-2017 BMW 650I, 2012-2017 BMW 640I and 2013-2017 BMW M6.
- Bulletin number
- B840715
- Component
- Equipment adaptive/mobility
- Summary
- SUBJECT SOS Malfunction Is Displayed In Kombi Sporadically. After engine start-up, a CCM (Check Control Message) for SOS malfunction is displayed in the Kombi and in the CID (Central Information Display). One or more of the fault codes below may be stored in the TCB or Combox control unit: 0xB7F32B - GSM Antenna: Open Circuit 0xB7F31F - GSM Antenna: Short to ground 0xB7F31E - GSM Antenna: Open Circuit A signal error is identified during the aerial self-test performed by the TCB (Telematic Control Box or the Combox).
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