22 · Diagnostics

Rear fog lamps not working

Make: Fiat
Model: Idea Factory Service Manual
Year: 2003–2012
Section: Lights › Rear fog lamps not working

‹ Prev Fog lights not working Next › Dipped beams do not come on in "manual" dipped mode

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.

0	PRELIMINARY CHECKS	All OK	Problems met	Operation
		Results of the tests
	With the ignition ON, check that the dipped headlamps are working properly and that when they are activated the rear fog lamp can be switched on using the control panel	End of diagnosis	The dipped headlamps are not activated	Continue according to the instructions for the See table I05 DIPPED HEADLAMPS NOT WORKING
		End of diagnosis	The reversing light is not activated	Continue to Step 1
Daylight sensor	With the ignition ON, check that the dipped headlamps are working properly and that when they are activated the rear fog lamp can be switched on using the control panel	End of diagnosis	The dipped headlamps are not activated	Continue according to the instructions for the See table I22 DIPPED BEAMS DO NOT COME ON IN "MANUAL" DIPPED MODE
Daylight sensor		End of diagnosis	The reversing light is not activated	Continue to Step 1
1	CHECK WITH DIAGNOSTIC EQUIPMENT	All OK	Problems met	Operation
	Connect the Examiner 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 4	There are faults in the Body Computer	Continue to Step 2
2	CHECK ON INDIVIDUAL LIGHT	All OK	Problems met	Operation
	Check the condition of the individual bulbs and the bulb holder assemblies	Continue to Step 3	Bulb damaged	Change the bulb Op. 5540A50
		Continue to Step 3	Bulb holder faulty	Renew or replace the rear light cluster Op. 5540A44
3	CHECK ON 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	Restore earth See E2031 REAR FOG LAMPS
4	CHECK ON 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. 7040A56
5	CHECK ON CORRECT OPERATION	All OK	Problems met	Operation
	Check that the fault is no longer present	End of diagnosis

‹ Prev Fog lights not working Next › Dipped beams do not come on in "manual" dipped mode

Parts & tools for this job For 2003 Fiat Idea

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