16 · Diagnostics

I05 Dipped beams not working

Fault diagnosisI05 Dipped beams not working

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

Step	Test procedure	Result	Action
1	CHECK INDIVIDUAL LIGHTS Check the condition of individual bulbs and light units.	OK	Move onto step 2
		Bulbs damaged	Replace bulbs End of diagnosis
		Light unit faulty	Repair or change the front light unit Op. 5540B22 End of diagnosis
2	CHECK THE DIPPED HEADLAMP ELECTRICAL CIRCUIT 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 (Wiring diagram E2011 DIPPED HEADLAMPS ).	OK	Move onto step 3
		Component defective	Replace the component involved (if a fuse is involved, search for the cause of the problem) End of diagnosis
		Component defective	Replace the component involved (if a fuse is involved, search for the cause of the problem) End of diagnosis
3	STEERING COLUMN SWITCH UNIT CHECK Check the stalk unit is working properly: in particular, check the side light switch see DESCRIPTION AND OPERATION: 5550A Stalk unit (see 5550AF)	OK	Move onto step 4
3		Stalk unit not working properly	Replace the steering column switch unit Op. 5550A12 End of diagnosis
4	CHECK CORRECT OPERATION Check that the fault is no longer present	OK	End of diagnosis
4		Fault persists	Incorrect selection of diagnostic procedure

Parts & tools for this job For 1997 Alfa Romeo 156

Links open Amazon search results in a new tab. As an Amazon Associate I earn from qualifying purchases.