Diagnostic Trouble Code (DTC) Information

Diagnostic trouble code (DTC) information CVM-U000100

Condition
The control modules transmit and receive information via a standardized serial communication method - CAN (Control Area Network).
The diagnostic trouble code (DTC) is stored if the control module detects that:
- Communication on the CAN network affected by another control module.
- The control module's internal messages cause interference on the controller area network (CAN).
The control module's test for the diagnostic trouble code (DTC) starts in the event of:
- Starting the control module's CAN communication.
- The voltage supply to the control module is 9-16 V.
- 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. In the event of system communication problems, it is not possible to communicate with the control module. Therefore it will only be possible to read off the fault if it is intermittent.





Substitute value
- City Safety switches off.

Possible source
- Short-circuit between the control area network (CAN) wiring.
- Open-circuit in the control area network (CAN) wiring.
- Internal fault in another control module in the same part of the control area network (CAN).
- Internal fault in the control module.

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