Direction indicators / hazard warning lights / not working

Make: Fiat
Model: Idea Factory Service Manual
Year: 2003–2012
Section: Lights › Direction indicators / hazard warning lights / not working

‹ Prev Side lights not working Next › Turn signals rh or lh side not working

Fault diagnosisDirection indicators / hazard warning lights / not working

DIRECTION INDICATORS / HAZARD WARNING LIGHTS / NOT WORKING

With the ignition ON, when the steering column switch unit lever is raised or lowered, 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 I39 TURN SIGNALS DO NOT WORK WHEN HAZARD KEY IS PRESSED
			Direction indicators faulty on both sides	Continue to Step 1
			Direction indicators faulty on only one side	Continue as instructed See table I12 TURN SIGNALS RH OR LH SIDE NOT WORKING
1	CHECKING 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 in 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 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 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	Replace the bulb Op. 5550C18
			Damaged rear bulb	Replace the bulb Op. 5550C26
			Side repeater damaged	Replace the side repeater Op. 5550C22
			Rear bulb holder assembly faulty	Replace the bulb holder assembly Op. 5540A44
			Front left bulb holder assembly faulty	Replace the bulb holder assembly Op. 5540B78
			Front right bulb holder assembly faulty	Replace the bulb holder assembly Op. 5540B79
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. 5550A12
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 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	Fault persists	Replace the Body Computer Op. 5505A32

‹ Prev Side lights not working Next › Turn signals rh or lh side not working

Parts & tools for this job For 2003 Fiat Idea

Links open Amazon search results in a new tab. As an Amazon Associate I earn from qualifying purchases.