Dipped headlamps lowerd and not moving

Make: Fiat
Model: Croma Factory Service Manual
Year: 2005–2010
Section: Lights › Dipped headlamps lowerd and not moving

‹ Prev Dipped headlamps do not light up as they should Next › Headlamp alignment correction not carried out correctly (with vehicle in motion)

Fault diagnosisDipped headlamps lowerd and not moving

DIPPED HEADLAMPS LOWERD AND NOT MOVING

Both the headlamps come on, the initial test is carried out and the remain immobile, facing downwards

1	CHECK ON ALIGNMENT SENSOR WIRING	ALL OK	PROBLEMS ENCOUNTERED	ACTION
	Check the condition of the wiring for the alignment sensors. Check that the alignment sensors are correctly fitted and, in particular, that the fastening of the bracket with the connecting rod is correct	Move on to Step 2	1.Wiring short circuited with +Vbatt or to earth	1.Restore insulation for wiring See E2011 DIPPED HEADLAMPS
			2.Wiring interrupted	2.Restore or, if necessary, replace the wiring
			3.Mechanical installation of front sensor (brackets, connecting rods) incorrect	3.Refit front sensor correctly See Test 5540C42 SENSOR FOR CORRECTING/ALIGNING GAS DISCHARGE LIGHTING UNITS ON FRONT SUSPENSION - R.R.
			4.Mechanical installation of rear sensor (brackets, connecting rods) incorrect	4.Refit rear sensor correctly Op. 5040C46 A/C FAN MOTOR SWITCH - R+R WITH CONTROL MOUNT REMOVED
2	CHECK USING DIAGNOSTIC EQUIPMENT	ALL OK	PROBLEMS ENCOUNTERED	ACTION
	Check that there are no errors by connecting to the master headlamp (left) control unit.	End of diagnosis	1.Presence of error B1020 detected - Front sensor signal	1.Move on to step 3
			2.Presence of error B1021 detected - Rear sensor signal	2.Move on to step 3
			3.Presence of error B1022 detected - Sensor supply	3.Move on to step 3
			4.Presence of error B1030 detected - master/slave communication	4.Move on to step 4
			5.Presence of error B1040 detected - Headlamp alignment corrector	5.Move on to step 5
3	CHECK ON ALIGNMENT SENSORS SUPPLY	ALL OK	PROBLEMS ENCOUNTERED	ACTION
	Check that the alignment sensors are receiving a correct supply by carrying out the test See Test 5040CA CHECK ON BRUSHLESS FAN SIGNAL TO AIR CONDITIONING CONTROL UNIT	Move on to Step 4
4	TWO-WAY SERIAL LINE CHECK	ALL OK	PROBLEMS ENCOUNTERED	ACTION
	Check the continuity and the insulation of the two-way serial line between the master and slave headlamps, carrying out the test See Test 5540BL TWO-WAY SERIAL LINE CHECK	Move on to Step 5
5	CHECK ON CONNECTIONS INSIDE THE HEADLAMPS	ALL OK	PROBLEMS ENCOUNTERED	ACTION
	Check that the connections inside the headlamps for the vertical adjustment motors are correctly connected by carrying out the test See Test 5540BM CHECK ON HEADLAMP ALIGNMENT MOTOR POWER SUPPLY WIRING	Move on to Step 6
6	CHECK ON OPERATION OF HEADLAMP ALIGNMENT ACTUATORS	ALL OK	PROBLEMS ENCOUNTERED	ACTION
	Replace the headlamps and check in active diagnosis that the diagnostic equipment activates the correct operation of the actuators	End of diagnosis	1.Right headlamp alignment corrector not working	1.Move on to step 7
		End of diagnosis	2.Left headlamp alignment corrector not working	2.Move on to step 7
7	CHECK ON CORRECT OPERATION	ALL OK	PROBLEMS ENCOUNTERED	ACTION
	Refit the headlamps replaced previously and replace the ballast control units	End of diagnosis	The fault persists	Contact the Service Department for further information on the problem

‹ Prev Dipped headlamps do not light up as they should Next › Headlamp alignment correction not carried out correctly (with vehicle in motion)

Parts & tools for this job For 2005 Fiat Croma

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