DTC Alfa-Romeo C257B-27 Short Explanation
Channel: Maxidot Alfa-Romeo
Date: 20/06/2020

The video focuses on the basic Alfa-Romeo 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: 
Alfa Romeo 
Code: 
C257B-27 
Definition: 
Long Acceleration - Signal Rate Of Change Above Threshold 
Description: 
Chassis Domain Control Module (CDCM) is detecting an internal failure. 
Failure Type: 
Signal Rate of Change Above Threshold
This sub type is used for failures where the signal transitions more quickly than is reasonably allowed.