Diagnostic Trouble Code (DTC) Information

Diagnostic trouble code (DTC) information BCM-U043341

Condition
The control modules transmit and receive information via a standardized serial communication method - CAN (Control Area Network). The closing velocity module (CVM) transmits information on the controller area network (CAN), which the other systems can use. The Brake control module (BCM) retrieves the information that can then be used in different brake functions. The Brake control module (BCM) checks that the communication is correct via an internal diagnostic test mode (DTM).
The diagnostic trouble code (DTC) is stored if the control module detects that:
- The signal deviates from the expected value.
The control module's test for the diagnostic trouble code (DTC) starts in the event of:
- Ignition switch position II.

Note! The control module can only detect the fault once the test has been started and the diagnostic trouble code (DTC) is stored when the conditions are met.





Substitute value
- None.

Hint: Brake system, abbreviations Brake System, Abbreviations

Possible source
- Fault trace the Closing velocity module (CVM).

Note! This diagnostic trouble code (DTC) is not due to an internal hardware fault in the Brake control module (BCM) and must not be remedied by replacing the control module.

Fault symptom[s]
- Front monitoring/Active safety/City Safety does not work