DTC Mazda B2741 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:
B2741
Definition:
F-CAN Malfunction (PCM-SH-AWD Control Unit)
Description:
No signals via the CAN lines are received for at least 1 second.NOTE: If DTC U0028 is stored at the same time as DTC U0114, troubleshoot DTC U0028 first,then recheck for DTC U0114.
Cause:
 Blown fuse Poor connections or loose terminals at the gauge control module,the SH-AWD control unit "Open" circuit between the SH-AWD control unit and the PCM"Open" in the wire between the SH-AWD control unit and body groundFaulty SH-AWD control unit