DTC Toyota U0123 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:
U0123
Definition:
XBW RULE VIOLATION 02
Description:
Continuously monitored with the engine running and the Adaptive Cruise Control (ACC) Module in normal mode. A ready conflict between the ACC module and the Electronic Stability Program (ESP) system has occurred. The ACC module will disable the ACC system, the Forward Collision Warning (FCW) OFF and the ACC unavailable message will display in the Electronic Vehicle Information Center (EVIC). Once the Diagnostic Trouble Code (DTC) goes to stored, the ACC system will return to normal operation. The DTC will be cleared after a 100 consecutive key cycles of the STORED DTC
Cause:
CAN MESSAGE CONFLICT