Sequence in engine control module, function - GF80.57-P-4115C Mercedes-Benz E-class AMG W210/S210 facelift

Sequence in engine control module, function - GF80.57-P-4115C

MODEL 210

Function

The engine control module performs the authentication check analog to the drive authorization stage 2 (DAS 2).

After "circuit 15 is switched ON", the engine control module sends a request to the electronic ignition/starter switch via the CAN data bus.

This calculates a result based on this request. This calculation is accomplished in parallel in the engine control module in which the two results are compared. When they coincide, the engine control module enables the starting operation, simultaneously the result is sent to the electronic ignition/starter switch.

Function sequence in engine control module

1. Request to electronic ignition/starter switch
2. Calculation of authentication value
3. Reception of authentication value from electronic ignition/starter switch
4. Comparison of authentication value
5. Release of starting operation