22 · Diagnostics

Fog lights not working

Fault diagnosisFog lights not working

FOG LIGHTS NOT WORKING

The fog lamps do not come on when the switch located on the control panel in the centre of the facia is operated with the side lights on.

1	CHECK INDIVIDUAL LIGHTS	All OK	Problems met	Operation
		Results of the tests
	Check the condition of individual bulbs and lamps	Continue to Step 2	Bulb damaged	Change bulbs
	Check the condition of individual bulbs and lamps	Continue to Step 2	Lamp defective	Repair or replace the fog lamp Op. 5540D10
2	CHECK FOG LAMP ELECTRIC CIRCUIT	All OK	Problems met	Operation
	Check, in order: fog lamp fuse control panel supply fuse fog lights relay. control panel power supply connection between relay and control panel connection between relay and bulb relay earth and bulbs control panel earth ( See E2030 FOG LIGHTS).	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 FOG LAMP SWITCH	All OK	Problems met	Operation
	Check the fog lamp switch located in the control panel in the centre of the facia is working properly. See E2030 FOG LIGHTS The switch is built into an electronic control device, which controls the fog lamp operating software.	Continue to Step 4	Fog lamp switch defective	Repair the 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'

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