Diagnostic Trouble Code (DTC) Information

Diagnostic trouble code (DTC) information FSM-U042268

Condition
The control module continually supplies necessary information from the Central electronic module (CEM) via CAN communication. The control module checks the quality of the information from the Central electronic module (CEM).
The diagnostic trouble code (DTC) is stored if the control module detects that:
- Transmitting control module indicates a lower quality level of the information than what Forward Sensing Module (FSM) accepts.
The control module's test for the diagnostic trouble code (DTC) starts in the event of:
- Engine running.

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.

Possible source
- Fault-trace the central electronic module (CEM).

Fault symptom[s]
- Brake pedal/Excessive "brake pedal effort" required
- Warning lights and chimes/Front monitoring/Active safety indication/no indication
- Warning lights and chimes/Bulb failure indication/no indication
- Text window and warning symbol/Text message