DTC Lexus B1215 Short Explanation

The video focuses on the basic BMW 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:
Lexus
Code:
B1215
Definition:
CAN (TCU) Data Abnormal
Description:
Malfunction of CAN communication.
Cause:
No battery voltage Defective fuse. Wiring harness or coupling needs repair. Incompatible setting in the body integrated unit or ECM. Additional DTC displayed.