I80 Headlight aiming device not working

Fault diagnosisI80 Headlight aiming device not working

When operated with the dipped beam headlamps on, the headlamp adjustment knob does not work If the dipped beam headlamps do not work either, first

Step	Test procedure	Result	Action
1	CHECK THE HEADLAMP ALIGNMENT CORRECTOR ELECTRICAL CIRCUIT Verify: connection between left control panel and NQS; left control panel earth; connection between dashboard control unit and headlamp alignment motors; connection between dashboard control unit and instrument panel; headlamp alignment motor and headlamp alignment control earth Wiring diagram E3080 HEADLAMP GEOMETRY ADJUSTMENT	OK	Move onto step 2
		Connections not correct	Restore the connections Wiring diagram E3080 HEADLAMP GEOMETRY ADJUSTMENT End of diagnosis
		Earths defective	Restore the earth contacts : Wiring diagram E3080 HEADLAMP GEOMETRY ADJUSTMENT End of diagnosis
2	CHECK THE HEADLAMP ALIGNMENT CONTROL Check the operation of the headlamp alignment control device : Wiring diagram E3080 HEADLAMP GEOMETRY ADJUSTMENT	OK	Move onto step 3
		Headlamp adjuster faulty	Replace the left control panel Op. 5560B56 End of diagnosis
		Defective instrument panel	Replace instrument panel Op. 5560B11 End of diagnosis
3	CORRECT OPERATION CHECK Check that the fault is no longer present	OK	Incorrect selection of diagnostic procedure
3		Fault persists	Incorrect selection of diagnostic procedure

Parts & tools for this job For 2000 Alfa Romeo 147

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