Diagnostic Trouble Code (DTC) Information

Diagnostic trouble code (DTC) information CEM-U030100

Condition
The central electronic module (CEM) checks the software in the engine control module (ECM).
The diagnostic trouble code (DTC) is stored if the control module detects that:
- The software is defective or changed.
The control module's test for the diagnostic trouble code (DTC) starts in the event of:
- Vehicle speed exceeds 10 km/h.

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
- Incorrect software check sum.

Fault symptom[s]
- Message in information display