DTC Hummer P0202 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:
P0202
Definition:
Automatic Lighting Sensor Circuit Malfunction
Description:
Poor communication between the Automatic Lighting Sensor and the MICU.NOTE: If you are troubleshooting multiple DTCs,be sure to follow the instructions in B-CAN System Diagnosis Test Mode A.
Cause:
 Loose or poor connections between the Automatic Lighting Sensor and the MICU "Open" or "Short" Automatic Lighting Sensor and the MICU FaultyAutomatic Lighting SensorFaulty under-dash fuse or relay box (MICU)