Dipped headlamps do not light up as they should

Make: Alfa Romeo
Model: Brera and Spider Factory Service Manual
Year: 2005–2010
Section: Lights › Dipped headlamps do not light up as they should

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Fault diagnosisDipped headlamps do not light up as they should

DIPPED HEADLAMPS DO NOT LIGHT UP AS THEY SHOULD

Gas discharge headlamps

Both the dipped headlamps do not light up at the correct distance but point upwards or downwards

1	CHECK ON INSTALLATION OF ALIGNMENT SENSORS	All OK	Problems encountered	Operation
		Test results
	Check the condition and correct installation of the front and rear attitude sensors. Ensuere that the bracket and rod are secured correctly for both front and rear sensors	Move on to Step 2	Mechanical installation of front sensor (brackets, connecting rods) incorrect	Refit front sensor correctly Op. 5540C42 SENSOR FOR CORRECTING/ALIGNING GAS DISCHARGE LIGHTING UNITS ON FRONT SUSPENSION - R R
		Move on to Step 2	Mechanical installation of rear sensor (brackets, connecting rods) incorrect	Refit rear sensor correctly Op. 5540C46 SENSOR FOR CORRECTING/ALIGNING GAS DISCHARGE LIGHTING UNITS ON REAR SUSPENSION - R.R.
2	CHECK USING DIAGNOSTIC EQUIPMENT	All OK	Problems encountered	Operation
	Check that there are no errors by connecting to the master headlamp (left side) control unit.	Move on to Step 3	Presence of error B1020 detected - Front sensor signal	Move on to Step 3
			Presence of error B1021 detected - Rear sensor signal	Move on to Step 3
			Presence of error B1022 detected - Sensor supply	Move on to Step 3
			Presence of error B1040 detected - Headlamp alignment corrector	Move on to Step 5
3	CHECK ON ALIGNMENT SENSOR SUPPLY	All OK	Problems encountered	Operation
	Check that the attitude sensors are receiving a correct supply by carrying out the test See Test 5540BB CHECK ALIGNMENT SENSORS	Move on to Step 4
4	CHECK ON CONNECTIONS INSIDE THE HEADLAMPS	All OK	Problems encountered	Operation
	Check that the connections inside the headlamps for the vertical adjustment motors are correctly connected See E3080 HEADLAMP AGLINMENT CORRECTOR	Move on to Step 5	Connector for right headlamp motor not correctly fitted	Fit connector for right headlamp
		Move on to Step 5	Connector for left headlamp motor not correctly fitted	Fit connector for left headlamp
5	CHECK ON OPERATION OF HEADLAMP ALIGNMENT ACTUATORS	All OK	Problems encountered	Operation
	Replace the left headlamps Op. 5540B81 LEFT GAS DISCHARGE LIGHT CLUSTER - R.R. and right Op. 5540B82 RIGHT GAS DISCHARGE LIGHT CLUSTER - R.R. and check that the motors are working properly	End of diagnosis	Right headlamp alignment corrector not working	Move on to Step 6
		End of diagnosis	Left headlamp alignment corrector not working	Move on to Step 6
6	CHECK ON CORRECT OPERATION	All OK	Problems encountered	Operation
	Refit the headlamp removed previously and replace the ballast control unit Op. 5540B40 CONTROL UNIT IN LEFT GAS DISCHARGE LIGHT CLUSTER - R.R. and/or Op. 5540B41 CONTROL UNIT IN RIGHT GAS DISCHARGE LIGHT CLUSTER - R.R.	End of diagnosis

‹ Prev Flashing, switching off or variation in dipped headlamps brightness Next › Dipped headlamps lowerd and not moving

Parts & tools for this job For 2005 Alfa Romeo Brera

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