The video focuses on the basic Cadillac 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:
Cadillac
Code:
P2138
Definition:
Keyless Entry System Key Fobs Not Programmed
Description:
The keyless entry system must be enabled.
Cause:
The DTC is set if there are no keyless entry transmitter programmed to the RCDLR.

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