DTC Toyota P0A1D-722 Short Explanation
Channel: Maxidot Dodge
Date: 2020-09-17

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:
P0A1D 722
Definition:
Lost Communication with XXX
Description:
Voltage supplied to the module is in the normal operating voltage range,approximately 9-16 volts. A short to ground or B+ is not present.Diagnostic trouble codes U1300 and U1301 and U1305 are not set. The vehicle power mode requires serial data communication to occur.
Cause:
 An intermittent open between the inoperative module and the star connector may cause this code to set. A poor connection at the inoperative module or the star connector may cause this code to set. An intermittent open in the star connector may cause this code to set. An improperly powered module may cause this code to set.