23 · Diagnostics

Fog lights not working

Make: Alfa Romeo
Model: Brera and Spider Factory Service Manual
Year: 2005–2010
Section: Lights › Fog lights not working

‹ Prev Reversing lights not working Next › Rear fog lamps not working

Fault diagnosisFog lights not working

FOG LIGHTS NOT WORKING

The fog lights are not working;

The fog lights are controlled by the Body Computer Node via a relay located in the Engine Compartment Control Unit.

1	CHECK USING DIAGNOSTIC EQUIPMENT	All OK	Problems encountered	Operation
	Connect the Examiner diagnostic equipment to the diagnostic socket and check the following at the Body Computer Node	Move on to Step 2	Errors present in the Body Computer	Continue following the instructions for the diagnostic equipment.
2	FOG LIGHTS RELAY CHECK	All OK	Problems encountered	Operation
	Check the condition of the fog lights relay	Move on to Step 3	Relay defective	Replace the relay
3	CHECK ON OPERATION OF ENGINE COMPARTMENT JUNCTION UNIT FUSE	All OK	Problems encountered	Operation
	Check that fog lamp fuse in the engine compartment junction unit is working properly	Move on to Step 4	Fuses blown	Replace the fuses
4	CHECK USING DIAGNOSTIC EQUIPMENT	All OK	Problems encountered	Operation
	Keeping the diagnostic equipment connected, check in active diagnosis that the fog lights are working properly	Move on to Step 7	Main beam headlamps not working	Move on to Step 5
5	BODY COMPUTER CONNECTION CHECK	All OK	Problems encountered	Operation
	Check for deformed terminals or connections not present on the Body Computer	Move on to Step 6	Missing connections/pins bent	Renew the correct connections
6	CHECK ON OPERATION OF BULBS	All OK	Problems encountered	Operation
	Check that the fog lights are working properly	Move on to Step 8	Filament in one of the bulbs broken	Replace bulb Op. 5540D14 L/H OR R/H FOG LIGHT BULB (ONE) - R+R
7	FOG LIGHT ACTIVATION SWITCH CHECK	All OK	Problems encountered	Operation
	Check that the foglamp switch is operating correctly	Move on to Step 8	Fault in foglamp activation/deactivation switch	Replace the control panel Op. 7040A56 SWITCH UNIT IN DASHBOARD - R.R.
8	CHECK ON CORRECT OPERATION	All OK	Problems encountered	Operation
	Check that the fault is no longer present	End of diagnosis	Fault persists	Replace Body Computer Op. 5505A32 BODY COMPUTER - R.R

‹ Prev Reversing lights not working Next › Rear fog lamps not working

Parts & tools for this job For 2005 Alfa Romeo Brera

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