DTC Oldsmobile U1254 Short Explanation
Channel: Maxidot
Date: 2020-08-20

The video focuses on the basic Oldsmobile 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
Oldsmobile
Code
U1254
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