I80 HEADLAMP ALIGNMENT CORRECTOR NOT WORKING - Lancia - THESIS - eLearn

72526 - I80 HEADLAMP ALIGNMENT CORRECTOR NOT WORKING

The alignment of the headlamps is not corrected as the angle of the vehicle changes;

The alignment of the headlamps is corrected automatically and continuously by a Headlamp Alignment Corrector (C.A.F.) control unit.The correction of the headlamp alignment is activated by switching on the dipped headlamps; the C.A.F. control unit has an autodiagnostic function and, if the various components are faulty, the warning light (matrix message) in the Instrument Panel Node comes on.

STEP	OPERATIONS TO BE CARRIED OUT	TEST RESULTS
0	PRELIMINARY CHECK	ALL OK	PROBLEMS ENCOUNTERED	ACTION
	Check that the warning light (matrix message) is on.	Move on to Step	The warning light is off	Move on to Step
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 Headlamp Alignment Corrector control unit: that there are no faults.	Move on to Step	Presence of faults	Continue following the instructions for the diagnostic equipment
2	ELECTRICAL SYSTEM CHECK.	ALL OK	PROBLEMS ENCOUNTERED	ACTION
	Check: the presence of the C.A.F. control unit positive supply from the fuse in the dashboard junction unit the presence of the positive go ahead from the dipped headlamps the condition of the C.A.F. control unit connection to earth (Wiring Diagram ) E3080 HEADLAMP ALIGNMENT CORRECTOR	Move on to Step	1. No positive supply	Move on to Step
			Positive go ahead from dipped headlamps lacking	Move on to Step
			3. No connection to earth	Move on to Step
3	C.A.F. CONTROL UNIT SUPPLY ELECTRICAL SYSTEM CHECK	ALL OK	PROBLEMS ENCOUNTERED	ACTION
	Check the continuity/insulation between: C.A.F. control unit and intake connector at Body Computer Node (Wiring Diagram ) E3080 HEADLAMP ALIGNMENT CORRECTOR	Move on to Step	Electrial connection interrupted	Restore the electrical connection (Wiring Diagram ) E3080 HEADLAMP ALIGNMENT CORRECTOR
4	DASHBOARD NODE INTERNAL TRACK CHECK	ALL OK	PROBLEMS ENCOUNTERED	ACTION
	Remove the Body Computer Node, dismantle it from the dashboard junction unit and check the continuity between: input connector from C.A.F. and Body Computer Node/Junction Unit connector (Wiring Diagram ) E3080 HEADLAMP ALIGNMENT CORRECTOR	Move on to Step	Electrial connection interrupted	Replace body computer See in Op. 5505A32 BODY COMPUTER - R.R.
5	GO AHEAD FROM DIPPED HEADLAMPS ELECTRICAL SYSTEM CHECK	ALL OK	PROBLEMS ENCOUNTERED	ACTION
	Check the continuity/insulation between: C.A.F. control unit and input connector in dashboard junction unit (Wiring Diagram ) E3080 HEADLAMP ALIGNMENT CORRECTOR	Move on to Step	Electrial connection interrupted	restore the electrical connection (Wiring Diagram ) E3080 HEADLAMP ALIGNMENT CORRECTOR
6	DASHBOARD JUNCTION UNIT INNER TRACK CHECK	ALL OK	PROBLEMS ENCOUNTERED	ACTION
	Check the internal continuity between: input connector from C.A.F. to left front dipped headlamp bulb fuse (Wiring Diagram ) E3080 HEADLAMP ALIGNMENT CORRECTOR	Move on to Step	Electrial connection interrupted	Replace the dashboard junction unit See in Op. 5505A10 Junction UNIT - R.R.
7	CONNECTION TO EARTH ELECTRICAL SYSTEM CHECK	ALL OK	PROBLEMS ENCOUNTERED	ACTION
	Check the continuity/insulation between: C.A.F. control unit and right front earth point (Wiring Diagram ) E3080 HEADLAMP ALIGNMENT CORRECTOR	Move on to Step	Electrial connection interrupted	restore the electrical connection (Wiring Diagram ) E3080 HEADLAMP ALIGNMENT CORRECTOR
8	CHECK ON CORRECT OPERATION	ALL OK	PROBLEMS ENCOUNTERED	ACTION
	Check that the fault is no longer present		Fault persists	Replace the headlamp alignment corrector control unit See in Op. 5540C50 Gas discharge LIGHT CLUSTER CORRECTION/ALIGNMENT CONTROL UNIT - R.R.