DTC Mazda B12B3 Short Explanation
Channel: Maxidot Mazda
Date: 20/06/2020

The video focuses on the basic Mazda specific diagnostic error code.
Contents:
0:21 Basic DTC analysis according to OBD2 protocol standard.
1:48 Insight into programming
- an explanation of what a bit is and how a byte is formed
- decoding the Error Code to the base programming
2:58 A diagnostically understandable description of the Diagnostic Trouble Code
3:05 Basic error definition
- Possible causes or errors of the car and its parts describing the mentioned error

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Make:
Mazda
Code:
B12B3
Definition:
MAP or BARO Switch Solenoid Valve
Cause:
Harness or connectors:- check circuit for open or short or connectors loose or damagedHosesAbsolute pressure sensorMAP or BARO switch solenoid valve