23 · Diagnostics

Rev counter not working

Fault diagnosisRev counter not working

REV COUNTER NOT WORKING

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

The engine rpm message supplied by the Engine Management Control Unit Node via the Body Computer Node is made available to the Instrument Panel Node.

0	PRELIMINARY CHECK	All OK	Problems met	Operation
		Results of the tests
	Check that no failure message is displayed with the engine started up	Continue to Step 2	There are faults detected	Continue to Step 1
1	CHECKING WITH DIAGNOSTIC EQUIPMENT	All OK	Problems met	Operation
	Connect the diagnostic equipment (Examiner Plus or Smart) to the body computer. Check the following on the CAN information network: for inactive control units; control unit errors; absence of control unit with error in CAN line	Continue to Step 2	Presence of faults in the CAN network	Continue according to the instructions for the diagnostic equipment
		Continue to Step 2	Presence of errors at instrument panel node	Continue to Step 2
2	CHECKING WITH DIAGNOSTIC EQUIPMENT	All OK	Problems met	Operation
	Connect the diagnostic equipment (Examiner Plus or Smart) to the diagnostic socket or keep it connected and check that there are no faults at the instrument panel node	Continue to Step 3	For the presence of errors or failed dialogue with the diagnostic equipment	Continue according to the instructions for the diagnostic equipment
3	CHECKING WITH DIAGNOSTIC EQUIPMENT	All OK	Problems met	Operation
	Keeping the diagnostic equipment (Examiner) connected to the diagnostic socket, check the operation of the pointer through active diagnosis	Continue to Step 4	Rev counter is not working	Replace instrument panel Op. 5560B11
4	Continue as instructed by the tester	All OK	Problems met	Operation
	Check that the fault is no longer present	End of diagnosis

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