DTC GMC C0040-26 Short Explanation
Channel: Maxidot
Date: 16/05/2020

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

We will continue to work on improving the content.
Our efforts at Maxidot s.r.o.the video content gets better.




Make
GMC
Code
C0040 26
Definition
Output Speed Sensor Circuit Performance
Description
The transmission control system uses three speed sensors, one to measure input RPM, one to measure Transfer Speed output RPM of the main transmission assembly, and a third to measure the final transmission output RPM These inputs are essential for proper transmission operation Therefore, the integrity of this data is verified through system checks
Cause
T14 OUTPUT SPEED SIGNAL CIRCUIT OPENT13 SPEED SENSOR GROUND CIRCUIT OPENT14 OUTPUT SPEED SIGNAL CIRCUIT SHORTED TO GROUNDT14 OUTPUT SPEED SIGNAL CIRCUIT SHORTED TO VOLTAGET13 SPEED SENSOR GROUND CIRCUIT SHORTED TO VOLTAGEOUTPUT SPEED SENSORPOWERTRAIN CONTROL MODULE PCM
Failure Type
Signal Rate of Change Below Threshold
This sub type is used for failures where the signal transitions more slowly than is reasonably allowed