DTC Hummer P0974 Short Explanation
Channel: Maxidot Hummer
Date: 2020-06-20

The video focuses on the basic Hummer 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:
HUMMER
Code:
P0974
Definition:
Data Circuit Message
Description:
Key on,and the PCM detected that invalid or Missing Data from the Vehicle Security System was received on the SCP data bus.Note: Network codes occur during module-to-module communication failures.Invalid and Missing data network faults are outlined bel
Cause:
Invalid Data: Data transferred in normal inter-module messages with known invalid data.Transmitting module will set the code.Missing Network Data: Missing message fault logged by a module upon failure to receive a message from another module within a d