Direction indicators / hazard warning lights / not working

Make: Alfa Romeo
Model: GT Factory Service Manual
Year: 2003–2010
Section: Lights › Direction indicators / hazard warning lights / not working

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Fault diagnosisDirection indicators / hazard warning lights / not working

DIRECTION INDICATORS / HAZARD WARNING LIGHTS / NOT WORKING

When the lever on the stalk unit is raised or lowered, with the ignition on, the direction indicators do not work The hazard warning lights do not work when the button is pressed

0	PRELIMINARY CHECKS	All OK	Problems met	Operation
		Results of the tests
	Press the hazard warning lights switch in the control panel and check that the direction indicators/hazard warning lights are activated and deactivated With the ignition ON, using the special lever, check that the left/right direction indicators are activated	End of diagnosis	Hazard warning lights faulty	Continue as instructed See table See table I39 TURN SIGNALS DO NOT WORK WHEN HAZARD KEY IS PRESSED
		End of diagnosis	Turn signal fault	Continue to Step 1
1	CHECK WITH DIAGNOSTIC EQUIPMENT	All OK	Problems met	Operation
	Connect the Examiner to the diagnostic socket. Check: that there are no faults in the Body Computer the operation of the lights through active diagnosis	Continue to Step 4	Body Computer faulty	Continue according to the instructions for the diagnostic equipment
			Some of the bulbs do not come on	Continue to Step 3
			None of the bulbs manages to come on	Continue to Step 2
2	DIRECTION INDICATORS ELECTRICAL CIRCUIT CHECK	All OK	Problems met	Operation
	Check, in order: Connections between steering column switch unit and Body Computer; Connections between Body Computer and bulbs; Bulb earth See See E2020 DIRECTION INDICATORS / HAZARD WARNING LIGHTS	Continue to Step 3	Defective component	Replace the component involved (if a fuse is involved, search for the cause of the problem)
		Continue to Step 3	Connections broken	Restore the connections See See E2020 DIRECTION INDICATORS / HAZARD WARNING LIGHTS
3	CHECK ON INDIVIDUAL LIGHTS	All OK	Problems met	Operation
	Check the condition of the individual defective bulbs and the bulb holder assembly	Continue to Step 4	Front bulb damaged	Change the bulb Op. Op. 5550C18 BULB OF ONE FRONT TURN SIGNAL, L/H OR R/H - R+R
			Damaged rear bulb	Change the bulb Op. Op. 5540A50 TAIL-LIGHT BULB (ONE), LH OR RH - REPLACE
			Side repeater damaged	Replace the side repeater Op. Op. 5550C22 L/H OR R/H SIDE FLASHER (ONE) - R+R
			Right rear bulb holder assembly faulty	Replace the bulb holder assembly Op. Op. 5540A62 RIGHT OUTSIDE REAR LIGHT CLUSTER - R.R.
			Left rear bulb holder assembly faulty	Replace the bulb holder assembly Op. Op. 5540A60 LEFT OUTSIDE REAR LIGHT CLUSTER - R.R.
			Front lights cluster faulty	Replace the light cluster Op. Op. 5540B76 FRONT LIGHT CLUSTER WITH FOGLAMP ONE LH OR RH R R WITH INTERFERING PARTS REMOVED
4	CHECK ON STEERING COLUMN SWITCH UNIT	All OK	Problems met	Operation
	Check that the steering column switch unit is working properly and check that the direction indicators switch is working properly	Continue to Step 5	Stalk unit not working properly	Replace the stalk unit Op. Op. 5550A12 COMPLETE STALK UNIT - R+R FOR VERSIONS WITH AIR BAG
5	CHECK ON BODY COMPUTER SUPPLY	All OK	Problems met	Operation
	Check that the Body Computer is supplied correctly	Continue to Step 6	Incorrect supply	Restore the correct supply See See E2020 DIRECTION INDICATORS / HAZARD WARNING LIGHTS
6	CHECK ON CORRECT OPERATION	All OK	Problems met	Operation
	Check that the fault is no longer present	End of diagnosis	The fault persists	Replace the Body Computer Op. Op. 5505A32 BODY COMPUTER - R R

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Parts & tools for this job For 2003 Alfa Romeo GT

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