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Engine management control unit |
Connect the Examiner diagnosis equipment to read the statistic parameters and check that no faulty operating conditions have taken place (over-revving) |
This is an indication that the engine speed has exceeded 4500 rpm due to the mechanical driving of the engine by the vehicle (e.g. due to a shift from 4th to 2nd gear). The error is recognised if the engine speed goes above 4500 rpm. |
No diagnosis is required Inform the customer that the system is working normally and explain how to operate it correctly. |