DTC Nissan P1721 Short Explanation

The video focuses on the basic Nissan 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:
Nissan
Code:
P1721
Definition:
Left Solenoid S1. Signal Too High
Description:
Diagnostic trouble code (DTC) ROP-433 or ROP-443 is stored if resistance is too high in the wiring circuit for more than 5 seconds.The ROPS warning lamp lights.NOTE: Solenoid S1 is the left solenoid and solenoid S2 the right solenoid.
Cause:
Short-circuit to supply voltage in the signal cable.Short-circuit to supply voltage in the connector.