With Bose®: 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 B1A07:12 (CONNECTIVITY MASTER UNIT) DETECTION CONDITION AND POSSIBLE CAUSE - WITH BOSE®
| System malfunction location |
Rear side speaker (LH) audio output circuit or rear side speaker (RH) audio output circuit malfunction |
| Detection condition |
- The audio amplifier detects a short to power supply in the rear side speaker (LH) audio output circuit or rear side speaker (RH) audio output circuit for 30 s.
|
| Fail-safe |
Not applicable |
| Possible cause |
- Rear side speaker (LH) connector or terminal malfunction
- Rear side speaker (RH) connector or terminal malfunction
- Audio amplifier connector or terminal malfunction
- Rear side speaker (LH) malfunction
- Rear side speaker (RH) malfunction
- Short to power supply in rear side speaker (LH) audio output circuit or rear side speaker (RH) audio output circuit
- Audio amplifier malfunction
|
 Courtesy of MAZDA MOTORS CORP.
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