198001752 - I005 DIPPED HEADLAMPS NOT WORKING

Neither of the main beam headlamps works under any condition

The main beam headlamps are controlled by the Steering Wheel Controls Node, managed by the Body Computer Node and activated by the Engine Compartment Junction Unit

The lights can be switched on/off using the following controls:

• Specific command (from the Exterior Lights Control on the steering column)
• Command from the dusk sensor
• Follow me home command

		TEST RESULTS
0	PRELIMINARY CHECK	ALL OK	PROBLEMS ENCOUNTERED	ACTION
	Activate the appropriate command and check whether the warning light on the dashboard comes on.	Move on to Step 4	The warning light is not activated.	Move on to Step 1
1	BATTERY VOLTAGE CHECK	ALL OK	PROBLEMS ENCOUNTERED	ACTION
	Check correct battery voltage	Move on to Step 2	Battery voltage incorrect.	Restore correct battery voltage.
2	CHECK USING DIAGNOSTIC EQUIPMENT	ALL OK	PROBLEMS ENCOUNTERED	ACTION
	Connect the Examiner diagnostic equipment and check whether the following parameters are present and that there are no errors in the Body Computer mode	Move on to Step 3	1. Impossible to connect to the control unit.2. Presence of errors	1. Replace the Body Computer control unit after having acertained it is defective    Op. 5505A35 MAIN BODY COMPUTER/JUNCTION UNIT - R.R.2. Continue as described by the diagnostic equipment
3	ACTIVE DIAGNOSIS CHECK	ALL OK	PROBLEMS ENCOUNTERED	ACTION
	With the Examiner in the Body Computer mode check that the function in question is correctly activated in Active Diagnosis.- Left/right main beam headlamps control	End of diagnosis	1. Impossible to activate one of the main beam headlamps. Because of a blown lightbulb2. Impossible to activate one of the main beam headlamps. Because of interrupted wiring	1.Replace lightbulb.2.Restore correct wiring.
4	CHECK USING DIAGNOSTIC EQUIPMENT	ALL OK	PROBLEMS ENCOUNTERED	ACTION
	Check that the dipped headlamps control at the steering column switch unit is working properly	End of diagnosis	1.Steering column stalk unit faulty2.Engine compartment control unit faulty	1.Replace the steering column stalk unit    Op. 5550A10 STALK UNIT ASSEMBLY - R+R 2.Move on to Step 5
5	ENGINE COMPARTMENT CONTROL UNIT ELECTRICAL CIRCUIT CHECK	ALL OK	PROBLEMS ENCOUNTERED	ACTION
	Check the electrical circuit for the Engine Compartment Control Unit, in the following order:- Protective/supply fuse(s).- Wiring between Body Computer and Engine Compartment control unit- Check the continuity of the engine compartment control unit.    See E2011 DIPPED HEADLAMPS	End of diagnosis	1.Protective fuse/s blown.2.Wiring defective.3.Engine compartment control unit faulty.	1.Replace the component involved (in the case of a fuse, find out what caused it to blow).2.Restore the correct wiring3.Replace the engine compartment control unit