Diagnostic Trouble Code (DTC) Information ECM-740C

Condition 

The diagnostic trouble code (DTC) is stored in the engine control module (ECM) if the central electronic module (CEM) detects that the check sum calculated by the engine control module (ECM) does not correspond to the check sum stored in the central electronic module (CEM).

The diagnostic trouble code (DTC) can be diagnosed when the ignition is switched on.

Substitute Value 

None.

Possible Source 

• One or more diagnostic trouble codes (DTCs) are stored in the central electronic module (CEM).

Fault symptom[s] 

• None.