22 · Diagnostics

Rear fog lamps not working

Fault diagnosisRear fog lamps not working

REAR FOG LAMPS NOT WORKING

The rear fog lamp does not work when the switch on the control panel in the centre of the facia is operated with the dipped beams on (or fog lamp on)

1	CHECK LIGHT	All OK	Problems met	Operation
		Results of the tests
	Check the bulb and the bulb holder unit	Continue to Step 2	Bulb damaged	Change bulb
	Check the bulb and the bulb holder unit	Continue to Step 2	Bulb holder faulty	Repair or change the left tail-light Op. 5540A44
2	CHECK REAR FOG LAMP ELECTRICAL CIRCUIT	All OK	Problems met	Operation
	Check, in order: rear fog lamp fuse control panel supply fuse control panel power supply connections between junction unit and control panel connections between control panel and bulb control panel earth bulb earth ( See E2031 REAR FOG LAMPS).	Continue to Step 3	Component defective	Replace the component involved (if a fuse is involved, search for the cause of the problem)
		Continue to Step 3	Connections broken	Restore the connections
3	CHECK REAR FOG LAMP SWITCH	All OK	Problems met	Operation
	Check operation of the rear fog lamp switch located on the control panel in the middle of the facia ( See E2031 REAR FOG LAMPS). ( See E2031 REAR FOG LAMPS). the actual switch is built into a electriconic control device that manages the rear fog lamp operating cycle.	Continue to Step 4	Rear fog lamp switch faulty	Repair the rear fog lamp switch or change the control panel Op. 7065C10
4	CHECKING CORRECT OPERATION	All OK	Problems met	Operation
	Check that the fault is no longer present	End of diagnosis	Fault persists	Search for the fault starting from another symptom'

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