Diagnostic Trouble Code (DTC) Information ECM-710B

Condition 

The engine control module (ECM) contains a code for the immobilizer which is unique to each car. Before the engine can be started, the immobilizer code is checked to ensure that it corresponds to both the central electronic module (CEM) and the engine control module (ECM).

The diagnostic trouble code (DTC) will be stored if there is no communication between the central electronic module (CEM) and the engine control module (ECM) so that the immobilizer code cannot be checked.

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

Substitute Value 

None

Possible Source 

• Open-circuit in the communication between the central electronic module (CEM) and the engine control module (ECM).

Fault symptom[s] 

• The engine does not start.