DTC B0050-11: Driver-Side Buckle Switch Circuit Malfunction (BCM): 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 B0050:11 (BCM) DETECTION CONDITION AND POSSIBLE CAUSE
| System malfunction location |
Driver-side buckle switch circuit malfunction |
| Detection condition |
- The dash-electrical supply unit detects a short to ground in the driver-side buckle switch circuit for a continuous 2 times.
Preconditions
- The driver-side seat belt is unfastened.
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| Fail-safe |
Not applicable |
| Possible cause |
- Driver-side buckle switch connector or terminal malfunction
- Dash-electrical supply unit connector or terminal malfunction
- Driver-side buckle switch malfunction
- Short to ground in driver-side buckle switch signal circuit
- Dash-electrical supply unit malfunction
- Body control module (BCM) malfunction
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 Courtesy of MAZDA MOTORS CORP.
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