Side lights/no. plate lights not working

Make: Fiat
Model: Doblò Factory Service Manual
Year: 2000–2010
Section: Lights › Side lights/no. plate lights not working

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Fault diagnosisSide lights/no. plate lights not working

SIDE LIGHTS/NO. PLATE LIGHTS NOT WORKING

With the ignition key in the ON position, when the steering column switch unit ring nut is operated, the side lights or the number plate lights do not work and this fault is indicated by the light failure warning light.

1	CHECK WITH EXAMINER DIAGNOSTIC INSTRUMENT	All OK	Problems met	Operation
		Results of the tests
	Connect the diagnostic equipment (Examiner or other instruments) to the diagnostic socket Check that there are no faults in the Body Computer	Continue to Step 2	Side lights bulb incorrect	Check condition of bulbs Continue to Step 2
		Continue to Step 2	Side lights bulb incorrect	Restore the correct connections Continue to Step 3
2	CHECK INDIVIDUAL LIGHTS	All OK	Problems met	Operation
	Check the condition of the individual bulbs and bulb holder assembly	Continue to Step 3	Damaged rear bulb	Replace the bulb Op. 5540A50
			Front bulb damaged	Replace the bulb Op. 5540B22
			Rear bulb holder assembly faulty	Repair or replace the rear lights cluster Op. 5540A44
			Front bulb holder assembly faulty	Repair or change the front light unit Op. 5540B79
			Number plate light faulty	Renew or replace the number plate light Op. 5550A94
3	SIDE LIGHTS ELECTRICAL CIRCUIT CHECK	All OK	Problems met	Operation
	Verify: connections between ignition switch and stalk unit connections between ignition switch and Body Computer connections between Body Computer and bulbs bulb earth See E2010 SIDE LIGHTS / NO. PLATE LIGHTS	Continue to Step 4	Connections broken	Restore connections See E2010 SIDE LIGHTS / NO. PLATE LIGHTS
		Continue to Step 4	Connections defective	Replace the connections
4	STEERING COLUMN SWITCH UNIT CHECK	All OK	Problems met	Operation
	Check that the steering column switch unit is working properly: in particular, the side lights switch: Characteristic of working principle 5550A stalk unit	Continue to Step 5	Steering column switch unit not working properly	Replace the steering column switch unit Op. 5550A12
5	CHECK IGNITION SWITCH	All OK	Problems met	Operation
	Check that the side lights come on when the ignition key is turned in the opposite direction	Continue to Step 6	Ignition switch faulty	Renew or replace the ignition switch Op. 5520A12
6	CHECK ON CORRECT OPERATION	All OK	Problems met	Operation
	Check that the fault is no longer present		Fault persists	Search for the fault starting from another symptom'

‹ Prev Steering wheel oscillations/ vibrations / whilst driving Next › Dipped headlamps not working

Parts & tools for this job For 2000 Fiat Doblò

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