DTC B1207-86: Communication Error With SAS Control Module (Telematics Communication Unit): Outline

WARNING: This page is about a different car, the 2020 Mazda CX-30. However, it is still accessible from the selected car via links, so may be relevant.

DTC B1207:86 (TELEMATICS COMMUNICATION UNIT) DETECTION CONDITION AND POSSIBLE CAUSE

System malfunction location	Communication error with SAS control module
Detection condition	The telematics communication unit received invalid event notification signal 2 or could not receive any event notification signal 2 from SAS control module.
Fail-safe	Not applicable
Possible cause	DTCs are stored in the SAS control module. SAS control module malfunction SAS control module connector or terminal malfunction Telematics communication unit connector or terminal malfunction Open circuit in SAS control module signal circuit Telematics communication unit malfunction
Courtesy of MAZDA MOTORS CORP.