72559 - K03 SPEEDOMETER NOT WORKING

While driving, the speedometer does not work or works irregularly;

the speed signal is supplied by the "brake node" and made available to the "instrument panel node" via the "body computer node" Gateway. Remember that if the C-CAN network is faulty, the signal is made available on the B-CAN network from the Body Computer node via recovery line between brake node and body computer node known as VSO

STEP	OPERATIONS TO BE CARRIED OUT	TEST RESULTS
0	PRELIMINARY CHECK	ALL OK	PROBLEMS ENCOUNTERED	ACTION
	Check the following with the engine running: no fault message is displayed	Move on to Step	Faults found	Move on to Step
1	CHECK USING DIAGNOSTIC EQUIPMENT	ALL OK	PROBLEMS ENCOUNTERED	ACTION
	Connect the Examiner diagnostic equipment to the diagnostic connector and check the following at the CAN: no control unit not activated; that there are no faulty control units; no control unit with faulty CAN line;	Move on to Step	1. Faults on CAN network	1. Continue following the instructions for the diagnostic equpiment
			2. Errors on instrument panel node	Move on to Step
2	CHECK USING DIAGNOSTIC EQUIPMENT	ALL OK	PROBLEMS ENCOUNTERED	ACTION
	Keeping the Examiner diagnostic equipment connected to the diagnostic connector, check the following at the instrument panel node:in error environment that there are no faults	Move on to Step	Presence of errors	Continue following the instructions for the diagnostic equpiment
3	CHECK USING DIAGNOSTIC EQUIPMENT	ALL OK	PROBLEMS ENCOUNTERED	ACTION
	Keeping the Examiner connected, check the following on the instrument panel node:In active diagnosis environment operation of speed indicator	Move on to Step	Speedometer not working	Replace instrument panel    See in Op. 5560B11 ANALOGUE CONTROL PANEL - R.R. or Replace
4	CHECK ON CORRECT OPERATION	ALL OK	PROBLEMS ENCOUNTERED	ACTION
	Check that the fault is no longer present