22 · Diagnostics

Dipped headlamps not working

Fault diagnosisDipped headlamps not working

DIPPED HEADLAMPS NOT WORKING

When the stalk unit collar is operated with the key turned on, the dipped headlamps do not work.

1	CHECK INDIVIDUAL LIGHTS	All OK	Problems met	Operation
		Results of the tests
	Check the condition of individual bulbs and light units.	Continue to Step 2	Bulb damaged	Change bulbs
	Check the condition of individual bulbs and light units.	Continue to Step 2	Light unit faulty	Repair or change the front light unit Op. 5540B20
2	CHECK THE DIPPED HEADLAMP ELECTRICAL CIRCUIT	All OK	Problems met	Operation
	Check, in order: right and left dipped headlamp fuses dipped headlamp maintenance relay connection between stalk unit, relay and junction unit connection between junction unit and bulbs bulb earth ( See E2011 DIPPED HEADLAMPS).	Continue to Step 3	Component defective	Replace the component involved (if a fuse is involved, search for the cause of the problem)
		Continue to Step 3	Connections broken	Restore the connections
3	STEERING COLUMN SWITCH UNIT CHECK	All OK	Problems met	Operation
	Check the stalk unit is working properly: in particular, check the side light switch see DESCRIPTION AND OPERATION: 5550A stalk unit	Continue to Step 4	Stalk unit not working properly	Replace the steering column switch unit Op. 5550A12
4	CHECKING CORRECT OPERATION	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'

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