Diagnostic Trouble Code (DTC) Information

Diagnostic trouble code (DTC) information CEM-U030141

Condition
The central electronic module (CEM) checks the software in the engine control module (ECM). At each start up, the control module checks the stored check sum against a calculated check sum.
The diagnostic trouble code (DTC) is stored if the control module detects that:
- An internal check sum in the control module is invalid.
The control module's test for the diagnostic trouble code (DTC) starts in the event of:
- Start-up of the control module.

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]
- None.