I55 INTERIOR LIGHTS NOT WORKING / TIMED - Alfa - 156 - eLearn

The interior timed lights can be controlled by hand but the timing function does not work or is irregular.

1	CHECKING TIMED LIGHTING CIRCUIT	All OK	Problems met	Operation
		Results of the tests
	Check, in order: services control unit supply Connections between service control unit and door contacts connections between service control unit and lights service control unit earth ( See E2510 COURTESY LIGHTS ).	Continue to Step 2	Component defective	Replace the component involved (if a fuse is involved, search for the cause of the problem)
		Continue to Step 2	Connections broken	Restore connections
2	SERVICES CONTROL UNIT CHECK	All OK	Problems met	Operation
	Check that the services control unit is working properly, in particular the timed lighting function: see DESCRIPTION AND OPERATION: 5505 ELECTRICAL CIRCUIT FOR INSTRUMENTS/INDICATORS	Continue to Step 3	Control unit not working	Replace the services control unit Op. 5505A18
3	CORRECT OPERATION CHECK	All OK	Problems met	Operation
	Check that the fault is no longer present	End of diagnosis	Fault persists	Search for the fault starting from another symptom'

The interior timed lights can be controlled by hand but the timing function does not work or is irregular.

1	CHECKING TIMED LIGHTING CIRCUIT	All OK	Problems met	Operation
		Results of the tests
	Check, in order: services control unit supply connections between services control unit and contacts between the doors connections between service control unit and lights service control unit earth ( See E2510 COURTESY LIGHTS )	Continue to Step 2	Component defective	Replace the component involved (if it is a fuse, search for the cause of the problem)
		Continue to Step 2	Connections broken	Restore connections
2	COURTESY LIGHTS SUPPLY CHECK	All OK	Problems met	Operation
	Check, in order: battery link junction unit right rear earth	Continue to Step 3	Damaged components	Replace the component involved
3	CENTRAL LOCKING MOTORS CORRECT OPERATION CHECK	All OK	Problems met	Operation
	Check that the door lock geared motor is working properly	Continue to Step 4	Geared motor damaged	Replace the geared motor
4	SERVICES CONTROL UNIT CHECK	All OK	Problems met	Operation
	Check that the services control unit is working properly	Continue to Step 5	Control unit damaged	Replace the services control unit ( Op. 5505A18 )
5	CORRECT OPERATION CHECK	All OK	Problems met	Operation
	Check that the fault is no longer present	End of diagnosis	Fault persists	Search for the fault starting from another symptom'