Diagnostic Trouble Code (DTC) Information ECM-E003
Condition
The engine control module (ECM) compares its configuration ID with the signal configuration transmitted on the control area network (CAN) by the central electronic module (CEM). If the configuration IDs do not correspond the fault code is stored. The diagnostic trouble code (DTC) is also stored if the communication between the engine control module (ECM) and the central electronic module (CEM) is interrupted.
In the event of an open-circuit in both the control area network (CAN) cables, it is not possible to communicate with the engine control module (ECM). Therefore it will only be possible to read off the diagnostic trouble code (DTC) if this type of fault is intermittent. When the diagnostic trouble code (DTC) is stored, the engine control module (ECM) responds to the diagnostic commands. However normal control area network (CAN) communication does not work ("Expulsion mode").
Substitute Value
- None.
Possible Source
- Incorrect CAN configuration ID (engine control module (ECM) is not intended for this car (for example a used control module with other software/hardware)
- Open-circuit in the control area network (CAN) wiring between the engine control module (ECM) and the central electrical module (CEM).
Fault symptom[s]
- General warning lamp lit
- The cruise control does not function at all
- The engine judders under acceleration
- The engine judders heavily after engine braking
- Uneven idle.