3360241 - I23 HIGH BEAM (ONE) RH OR LH DOES NOT COME ON OR COMES ON IRREGULARLY/

One of the two main headlamps does not work;

The main beam headlamps are controlled from the Body Computer Node via a relay on the Engine Bay Control Unit

		Results of the tests
1	CHECKING ELECTRICAL EQUIPMENT	All OK	Problems met	Operation
	Check the condition of the fuse on the engine bay control unit See   E2012  MAIN BEAM HEADLAMPS	Continue to Step 2	Fuse blown	Check wiring insulation by proceeding to step 3, then change the fuse See   E2012  MAIN BEAM HEADLAMPS
2	CHECKING AUXILIARY MAIN BEAM BULB CONDITION	All OK	Problems met	Operation
	Check the condition of the main beam bulbs	Continue to Step 3	Bulb blown	Change the bulb Op. 5540B22
3	CHECKING ELECTRICAL EQUIPMENT	All OK	Problems met	Operation
	Check the continuity and the insulation of the wires between the front headlamp and the engine bay control unit. See   E2012  MAIN BEAM HEADLAMPS	Continue to Step 4	Electrical connection break or faulty insulation	Renew the electrical connections See   E2012  MAIN BEAM HEADLAMPS
4	CHECKING ELECTRICAL EQUIPMENT	All OK	Problems met	Operation
	Check the continuity and the insulation of the wires between the engine bay control unit output and the fuse. See   E2012  MAIN BEAM HEADLAMPS	Continue to Step 5	Facia control unit internal electrical connection break or faulty insulation	Change the engine compartment junction unit Op. 5505A13
5	CHECKING HEADLAMP ELECTRICAL CIRCUIT	All OK	Problems met	Operation
	Check the condition of the internal headlamp wiring between the headlamp connector and main beam bulb	Continue to Step 6	Internal electrical connection break or faulty insulation	Renew the electrical connection or, if necessary, replace the headlamp. Op. 5540B74
6	CHECKING CORRECT OPERATION	All OK	Problems met	Operation
	Check that the fault is no longer present		The fault persists	Search for the fault starting from another symptom'