DTC Lexus U0123 Short Explanation

The video focuses on the basic Lexus 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:
Lexus
Code:
U0123
Definition:
Fuel Pressure Regulator Solenoid 2 Control Circuit Temperature High
Description:
The ignition is ON,or the engine is running.The ignition voltage is less than 16 volts.The DTCs runs continuously once the above conditions are met.
Cause:
P2293 00, P2293 11, P2293 12, P2293 18, P2293 19The ECM detects the Fuel Pressure Regulator Solenoid 2 Control Circuit is not within limits for less than 1 second.P2293 04The ECM detects the Fuel Pressure Regulator Solenoid 2 Control Circuit is open for less than 1 second.P2294 02, P2294 54, P2295The ECM detects the Fuel Pressure Regulator Solenoid 2 Control Circuit is shorted to ground for less than 1 second.P2294 01, P2296The ECM detects the Fuel Pressure Regulator Solenoid 2 Control Circuit is shorted to voltage for less than 1 second.