DTC Toyota P101D Short Explanation

The video focuses on the basic Toyota 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:
Toyota
Code:
P101D
Definition:
Device Ignition ACCESSORY Circuit Short to Ground or Open
Description:
B1380 06, B1440 00 Ignition switch is in the RUN position.
Cause:
B1370 01Ignition 1 voltage circuit is shorted to voltage.B1370 06Ignition 1 voltage circuit is open.B+ circuit of the ignition switch open or shorted to ground.B1380 01Accessory voltage circuit is shorted to voltage.Accessory voltage circuit is open.B+ circuit of the ignition switch open or shorted to ground.B1440BCM senses an open or short to voltage on the off or run or crank voltage circuit when both ignition accessory or run and ignition run or crank parameters are active.BCM senses an open on the B+ circuit to the ignition switch while the engine is running.An open on the B+ circuit can be caused by a short to ground on any of the circuits listed below:B+Accessory voltageRun or crank ignition 1 voltage BCM terminal 19, X4Off or run or crank voltageB1441 01Off or run or crank voltage circuit is shorted to voltage.B1441 06Off or run or crank voltage circuit is open.