DTC GMC C128F Short Explanation
Channel: Maxidot GMC
Date: 20/06/2020

The video focuses on the basic GMC 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:
GMC
Code:
C128F
Definition:
Left Seat Back Heater Circuit Current Above Threshold
Description:
The MSM must be powered and the heated seat must be enabled.
Cause:
B1935 0B,B1935 0E,B2180 0B,or B2180 0EBy measuring output current,the module calculates that the heating element resistance is below the minimum resistance.