72628 - K90 INSTRUMENT PANEL LIGHTS NOT WORKING

With the ignition on, the display either does not show the time or it is not correct;

the interior lights on signal is sent from the "body computer node", via the B-CAN, to the "instrument panel node".

STEP	OPERATIONS TO BE CARRIED OUT	TEST RESULTS
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	Presence of faults	Continue following the instructions for the diagnostic equipment
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 active diagnosis ambient the operation of the panel lighting.	Move on to Step	The instrument panel does not light up	Replace instrument panel    See in Op. 5560B11 ANALOGUE CONTROL PANEL - R.R. or Replace
3	CHECK ON CORRECT OPERATION	ALL OK	PROBLEMS ENCOUNTERED	ACTION
	Check that the fault is no longer present		Fault persists	Replace body computer    See in Op. 5505A32 BODY COMPUTER - R.R.