DTC Mercedes-Benz P2009 Short Explanation
Channel: Maxidot
Date: 2020-12-03

The video focuses on the basic Mercedes-Benz 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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#maxidot #dtc #howto #diagnostictroublecode #mercedes-benz




Make:
Mercedes Benz
Code:
P2009
Definition:
Immobilizer-keyless Control Unit Lost Communication With Door Multiplex Control Unit
Description:
Poor communication between the Immobilizer-keyless Control Unit,and the Door Multiplex Control Unit.NOTE: If you are troubleshooting multiple DTCs,be sure to follow the instructions in B-CAN System Diagnosis Test Mode A.
Cause:
 Perform the door multiplex control unit input test,and do all power,ground,and communication input tests.If the tests prove OK,replace the power window master switch Loose or poor connections at the door multiplex control unit and the related units