I05 DIPPED HEADLAMPS NOT WORKING - Lancia - THESIS - eLearn

72496 - I05 DIPPED HEADLAMPS NOT WORKING

Both the dipped headlamps are not working in any conditions (in both manual and AUTO mode);

The dipped headlamps are controlled by the Body Computer Node via a relay located in the Dashboard Junction Unit.The lights can be switched on/off using the following controls:

The dipped headlamps are controlled by the Body Computer Node via a relay located in the Dashboard Junction Unit.
The lights can be switched on/off using the following controls:
1. Specific command (from the Exterior Lights Control)
2. Command from the dusk sensor
3. Follow me home command
4. "Dipped headlamp maintenance" command when the main beam headlamps are switched on.

STEP	OPERATIONS TO BE CARRIED OUT	TEST RESULTS
1	CHECK USING DIAGNOSTIC EQUIPMENT.	ALL OK	PROBLEMS ENCOUNTERED	ACTION
	Connect the Examiner diagnostic equipment to the diagnostic socket and check the following at the Body Computer Node: that there are no faults in the Dipped Headlamps Relay	Move on to Step	Presence of dipped headlamps relay fault.	Continue following the instructions for the diagnostic equipment
2	CHECK USING DIAGNOSTIC EQUIPMENT.	ALL OK	PROBLEMS ENCOUNTERED	ACTION
	Keeping the diagnostic equipment connected, check the following at the Body Computer Node: the operation of the relay through active diagnosis	Move on to Step	The relay is not activated.	Move on to Step
3	MAIN BEAM HEADLAMPS RELAY CHECK.	ALL OK	PROBLEMS ENCOUNTERED	ACTION
	Check the condition of the main beam headlamps relay	Move on to Step	Relay defective.	Replace the relay
4	CHECK ON ELECTRICAL SYSTEM INSIDE DASHBOARD JUNCTION UNIT (control circuit)	ALL OK	PROBLEMS ENCOUNTERED	ACTION
	Check the continuity of the connections for the interior lights control circuit to the dashboard junction unit (Wiring Diagram ) E2011 DIPPED BEAMS	Move on to Step	Open circuit for connection in dashboard junction unit	Replace Dashboard Junction Unit See in Op. 5505A10 Junction UNIT - R.R.
5	CHECK ON ELECTRICAL SYSTEM INSIDE DASHBOARD JUNCTION UNIT (power circuit)	ALL OK	PROBLEMS ENCOUNTERED	ACTION
	Check the continuity of the connections for the dipped headlamps power circuit to the dashboard junction unit (Wiring Diagram ) E2011 DIPPED BEAMS	Move on to Step	Open circuit for connection in dashboard junction unit	Replace Dashboard Junction Unit See in Op. 5505A10 Junction UNIT - R.R.
6	CHECK ON CORRECT OPERATION	ALL OK	PROBLEMS ENCOUNTERED	ACTION
	Check that the fault is no longer present		Fault persists.	Replace body computer See in Op. 5505A32 BODY COMPUTER - R.R.