22 · Diagnostics

Rear fog lamps not working

Make: Alfa Romeo
Model: 147 Factory Service Manual
Year: 2000–2004
Section: Lights › Rear fog lamps not working

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Fault diagnosisRear fog lamps not working

REAR FOG LAMPS NOT WORKING

When the rear fog lamp switch is operated with the dipped beam headlamps on (or front fog lamps on), the rear fog lamp does not work, and this fault is indicated by the relevant warning light.

If the rear fog lamp does not work and the check on the Body Computer does not indicate this See table I30 LIGHTS CHECK NOT WORKING.

If the dipped beam headlamps do not work either, first see See table I05 DIPPED HEADLAMPS NOT WORKING

1	CHECKING WITH DIAGNOSTIC EQUIPMENT	All OK	Problems met	Operation
		Results of the tests
	Connect the Examiner diagnostic equipment to the diagnostic socket. Check that there are no faults in the Body Computer Check light operation while in active diagnosis mode.	Continue to Step 2	Rear fog lamp error	Rear fog lamp does not activate Continue to Step 2
2	CHECKING INDIVIDUAL LIGHT	All OK	Problems met	Operation
	Check the condition of the individual bulbs and the bulb holder assembly	Continue to Step 3	Bulbs damaged	Replace bulbs
		Continue to Step 3	Bulb holder assembly faulty	Renew or replace the tail light cluster Op. 5540E10
3	CHECK REAR FOG LAMP ELECTRICAL CIRCUIT	All OK	Problems met	Operation
	Check, in order: connections between rear fog lamp switch and Body Computer connections between Body Computer and bulbs bulb earth rear fog lamp switch earth: See E2031 REAR FOG LAMPS	Continue to Step 4	Connections broken	Restore the connections: See E2031 REAR FOG LAMPS
		Continue to Step 4	Faulty earth	Repair the earth: See E2031 REAR FOG LAMPS
4	CHECKING REAR FOG LAMP SWITCH	All OK	Problems met	Operation
	Check rear fog lamp switch operation See E2031 REAR FOG LAMPS	Continue to Step 5	Rear fog lamp switch faulty	Replace the control panel Op. 5505A24
5	CHECKING 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'

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Parts & tools for this job For 2000 Alfa Romeo 147

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