22 · Diagnostics

Fog light (one) not working

Fault diagnosisFog light (one) not working

FOG LIGHT (ONE) NOT WORKING

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

1	FOG LIGHT BULB CONDITION CHECK	All OK	Problems encountered	Operation
		Test results
	Check the condition of the fog light bulb	Move on to Step 2	Bulb faulty	Replace the bulb Op. 5540D14 L/H OR R/H FOG LIGHT BULB (ONE) - R+R
2	ELECTRICAL SYSTEM CHECK	All OK	Problems encountered	Operation
	Check the continuity of the electrical connection between the connection in the engine compartment junction unit and the fog light	Move on to Step 3	Connection broken	Restore the electrical connection See E2030 FOG LIGHTS
3	CHECK ON ENGINE COMPARTMENT JUNCTION UNIT INTERNAL ELECTRICAL SYSTEM	All OK	Problems encountered	Operation
	Check the internal continuity of the engine compartment junction unit (power circuit) See E2030 FOG LIGHTS	Move on to Step 4	Open circuit for connection in engine compartment junction unit	Replace the engine compartment junction unit Op. 5505A13 ADDITIONAL JUNCTION UNIT IN ENGINE COMPARTMENT - R.R.
4	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

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