DTC Hummer P1638 Short Explanation
Channel: Maxidot Hummer
Date: 20/06/2020

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:
P1638
Definition:
Driver Side Impact Sensor No Response (Advanced Only)
Description:
Driver side impact sensor has been communicated with no response.
Cause:
Driver side impact sensor circuitDriver side impact sensorSDM