23 · Diagnostics

Main beam headlamps not working

Make: Fiat
Model: Panda Factory Service Manual
Year: 2003–2012
Section: Lights › Main beam headlamps not working

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Fault diagnosisMain beam headlamps not working

MAIN BEAM HEADLAMPS NOT WORKING

With the dipped headlamps switched on (stable position) or in the flashing mode, when the stalk unit ring nut is operated, the main beam headlamps do not work

1	CHECKING WITH DIAGNOSTIC EQUIPMENT	All OK	Problems met	Operation
		Results of the tests
	Connect the Examiner to the diagnostic socket check that there are no faults in the Body Computer the operation of the lights in active diagnosis.	Continue to Step 3	Body Computer faulty	Continue according to the instructions for the diagnostic equipment
		Continue to Step 3	Body Computer faulty	Continue to Step 2
2	CHECK ON INDIVIDUAL LIGHTS	All OK	Problems met	Operation
	Check the condition of individual bulbs and light units.	Continue to Step 3	Bulbs damaged	Replace bulbs Op. 5540B22
			Front right light cluster faulty	Repair or replace front lights cluster Op. 5540B08
			Front left light cluster faulty	Repair or replace front lights cluster Op. 5540B07
3	MAIN BEAM HEADLAMPS ELECTRICAL CIRCUIT CHECK	All OK	Problems met	Operation
	Check, in order: left and right main beam headlamp fuses main beam headlamps relay feed; connection between steering column switch unit and Body Computer; connection between Body Computer and engine compartment control unit; connections between engine bay control unit and bulbs; bulb earth See E2012 MAIN BEAM HEADLAMPS	Continue to Step 4	Blown fuses	Replace the fuses, then search for the cause of the problem
			Blown fuses	Restore the connections See E2012 MAIN BEAM HEADLAMPS
			Blown fuses	Restore the earth to the bulbs See E2012 MAIN BEAM HEADLAMPS
4	CHECK ON STEERING COLUMN SWITCH UNIT	All OK	Problems met	Operation
	Check that the stalk unit is working properly See E2012 MAIN BEAM HEADLAMPS	Continue to Step 5	Stalk unit faulty	Replace the stalk unit Op. 5550A12
5	CHECK ON BODY COMPUTER	All OK	Problems met	Operation
	Check that the Body Computer is supplied properly Check that when an earth signal from stalk unit to Body is activated, an earth signal is emitted from the Body to drive the dipped beam headlamps relay	Continue to Step 6	Incorrect supply	Restore the supply See E2012 MAIN BEAM HEADLAMPS
		Continue to Step 6	Incorrect supply	Replace the Body Computer Op. 5505A32
6	Continue as instructed by the tester	All OK	Problems met	Operation
	Check that the fault is no longer present	End of diagnosis

‹ Prev Dipped headlamps not working Next › Side lights not working

Parts & tools for this job Staging For 2003 Fiat Panda

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