22 · Diagnostics

Dipped headlamps not working

Make: Fiat
Model: 500 Factory Service Manual
Year: 2007–2024
Section: Lights › Dipped headlamps not working

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Fault diagnosisDipped headlamps not working

DIPPED HEADLAMPS NOT WORKING

1.2 8v, 1.3 Multijet, 1.4 16v

Neither of the main beam headlamps works under any condition

N.B. The dipped beam headlights are managed by the Body Computer Node

The lights can be switched on/off using the following controls:

1. Specific command (from the Exterior Lights Control on the steering column)

2. Follow me home command

0	PRELIMINARY CHECKS	All OK	Problems encountered	Operation
		Test results
	Activate the appropriate command and check whether the warning light on the dashboard comes on.	Move on to Step 2	The warning light is not activated.	Move on to Step 1
1	CHECK USING DIAGNOSTIC EQUIPMENT	All OK	Problems encountered	Operation
	Connect the Examiner diagnostic equipment and check that there are no errors in the Body Computer ambient	Move on to Step 2	Presence of errors	Continue as instructed by the diagnostic equipment
2	ACTIVE DIAGNOSIS CHECK	All OK	Problems encountered	Operation
	With the Examiner in the Body Computer mode check that the dipped headlights are correctly activated in Active Diagnosis.	End of diagnosis	1. Impossible to activate one of the dipped headlights because the bulb is broken 2. Impossible to activate one of the dipped headlights because the wiring is broken 3. Impossible to activate both lights	1.Replace the defective bulb. 2.Restore correct wiring. 3. Move on to Step 3
3	DIPPED HEADLIGHTS ELECTRICAL CIRCUIT CHECK	All OK	Problems encountered	Operation
	Check that the steering column switch unit lights are working properly Check the continuity of the wiring between the steering column switch unit and the Body Computer and between the Body Computer and the lights Check the operation of the dipped headlights relay in the dashboard junction unit See E2011 DIPPED HEADLAMPS	Move on to Step 4	1. Steering column switch unit defective 2. Wiring broken 3. Relay defective	1. Replace the steering column switch unit Op. 5550A10 STALK UNIT ASSEMBLY - R+R 2. Restore correct wiring 3. Replace the relay.
4	BODY COMPUTER CORRECT OPERATION CHECK	All OK	Problems encountered	Operation
	Check that the body computer is working properly.	End of diagnosis	Body Computer defective	Replace body computer Op. 5505A32 BODY COMPUTER - R.R

‹ Prev Number plate lights not working Next › Main beam headlamps not working

Parts & tools for this job For 2007 Fiat 500

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