194000179 - K001 REV COUNTER NOT WORKING

With the engine running, the rev counter does not work or works irregularly.

1	CHECK USING DIAGNOSTIC EQUIPMENT	ALL OK	PROBLEMS ENCOUNTERED	ACTION
	Connect the Examiner equipment to the diagnostic socket.Check that there are no faults in the instrument panel	Move on to Step 2	Presence of errors	Continue following the instructions for the diagnostic equipment
2	ELECTRICAL CIRCUIT CHECK	ALL OK	PROBLEMS ENCOUNTERED	ACTION
	Check connections between instrument panel, Body Computer and engine management control unit    See E5030 PETROL ENGINES ELECTRONIC MANAGEMENT	Move on to Step 3	Wiring defective	Repair/replace the wiring.
3	CHECK USING DIAGNOSTIC EQUIPMENT	ALL OK	PROBLEMS ENCOUNTERED	ACTION
	Keeping the Examiner equipment connected to the diagnostic socket, check the operation of the pointer in active diganosis	Move on to Step 4	Rev counter not working through stepping motor failure	Replace instrument panel    Op. 5560B10 CONTROL PANEL - R+R
4	CHECK ON CORRECT OPERATION	ALL OK	PROBLEMS ENCOUNTERED	ACTION
	Check that the fault is no longer present	End of diagnosis