22 · Diagnostics

Airbag failure warning light on

Make: Alfa Romeo
Model: GT Factory Service Manual
Year: 2003–2010
Section: Instrument panel › Airbag failure warning light on

‹ Prev Passenger airbag disablement warning light flashing Next › Airbag warning light off / (do not carry out initial test)

Fault diagnosisAirbag failure warning light on

AIRBAG FAILURE WARNING LIGHT ON

2.0 JTS, 3.2 V6, 1.9 JTD 16V

During starting, the air bag failure warning light comes on and remains on for more than 4 seconds (control unit initial test)

1	CHECK WITH DIAGNOSTIC EQUIPMENT	All OK	Problems met	Operation
		Results of the tests
	Connect the Examiner to the diagnostic socket. Check that there are no faults in the Air Bag control unit	Continue to Step 2	Driver''s Air Bag error	Continue to Step 2
			Passenger Air Bag error	Continue to Step 3
			Driver''s Side Bag error	Continue to Step 4
			Passenger Side Bag error	Continue to Step 4
			Driver''s Air Bag with curtain error	Continue to Step 5
			Passenger Air Bag with curtain error	Continue to Step 5
			Driver''s pretensioner error	Continue to Step 6
			Passenger pretensioner error	Continue to Step 6
			Driver''s satellite sensor error	Continue to Step 7
			Passenger satellite sensor error	Continue to Step 7
			Passenger Air Bag disabling switch error	Continue to Step 8
			Air Bag failure warning light error	Continue to Step 9
			Examiner does not converse	Check the AIR BAG control unit supply and earth and the connection between the diagnostic socket and the Air Bag control unit See See E7030 AIRBAG
2	DRIVER''S AIR BAG CHECK	All OK	Problems met	Operation
	Before any R/R operation involving the explosive charges, disconnect the battery leads for 10 minutes Check that the driver''s air bag is not faulty	Continue to Step 3	Air Bag defective	Replace Air Bag Op. Op. 5580C18 AIR BAG MODULE - R+R
			Clock spring defective	Replace the clock spring Op. Op. 5580C12 CLOCK SPRING FOR AIR BAG MODULE ON STEERING WHEEL R R
			Faulty wiring	Replace wiring Op. 5580C80
			Control unit defective	Replace air bag control unit Op. Op. 5580C14 AIR BAG ECU - R+R
3	PASSENGER AIR BAG CHECK	All OK	Problems met	Operation
	Before any R/R operation involving the explosive charges, disconnect the battery leads for 10 minutes Check that the passenger air bag is not faulty	Continue to Step 4	Air Bag defective	Replace Air Bag Op. Op. 5580C22 AIR BAG MODULE PASSANGER SIDE R R
			Faulty wiring	Replace wiring Op. 5580C80
			Control unit defective	Replace air bag control unit Op. Op. 5580C14 AIR BAG ECU - R+R
4	SIDE BAG CHECK	All OK	Problems met	Operation
	Before any R/R operation involving the explosive charges, disconnect the battery leads for 10 minutes Check that the side bags are not faulty	Continue to Step 5	Air Bag defective	Replace Air Bag Op. Op. 5580C44 FRONT SIDE BAG MODULE ONE LH OR RH R R
			Faulty wiring	Replace wiring Op. Op. 5580C86 SIDE BAG WIRING HARNESS (ONE) LH OR RH - R R OR REPLACE
			Control unit defective	Replace air bag control unit Op. Op. 5580C14 AIR BAG ECU - R+R
5	AIR BAG WITH CURTAIN CHECK	All OK	Problems met	Operation
	Before any R/R operation involving the explosive charges, disconnect the battery leads for 10 minutes Check that the head bags are not faulty	Continue to Step 6	Air Bag defective	Replace Air Bag Op. Op. 5580C50 WINDOW BAG MODULE ONE LH OR RH RR
			Faulty wiring	Replace wiring Op. 5580C80
			Control unit defective	Replace air bag control unit Op. Op. 5580C14 AIR BAG ECU - R+R
6	PRETENSIONER CHECK	All OK	Problems met	Operation
	Before any R/R operation involving the explosive charges, disconnect the battery leads for 10 minutes Check that the pretensioners are not faulty	Continue to Step 7	Pretensioner defective	Replace pretensioner Op. Op. 7065A12 FRONT SEAT BELT (ONE), LH OR RH, WITH PRETENSIONER ON WHEEL - R R
			Faulty wiring	Replace wiring Op. 5580C80
			Control unit defective	Replace air bag control unit Op. Op. 5580C14 AIR BAG ECU - R+R
7	SATELLITE SENSOR CHECK	All OK	Problems met	Operation
	Before any R/R operation involving the explosive charges, disconnect the battery leads for 10 minutes Check that the satellite sensors are not faulty	Continue to Step 8	Defective sensor	Replace satellite sensor Op. Op. 5580C40 SIDEBAG SENSOR (ONE), LH OR RH - R R
			Faulty wiring	Replace wiring Op. 5580C96
			Control unit defective	Replace air bag control unit Op. Op. 5580C14 AIR BAG ECU - R+R
8	PASSENGER AIR BAG DISABLING SWITCH CHECK	All OK	Problems met	Operation
	Check: operation of passenger Air Bag disabling switch connection between passenger Air Bag disabling switch and Air Bag control unit See See E7030 AIRBAG	Continue to Step 9	Passenger Air Bag disabling switch faulty	Replace the device Op. Op. 5580C26 PASSENGER AIR BAG SWITCH - R R
		Continue to Step 9	Connections not correct	Replace wiring See See E7030 AIRBAG
9	ELECTRICAL EQUIPMENT CHECK	All OK	Problems met	Operation
	Before any R/R operation involving the explosive charges, disconnect the battery leads for 10 minutes Check the connection between the Air Bag control unit and the Air Bag failure warning light at the instrument panel connector. To switch off the fault warning light, the AIR BAG control unit sends a posistive signal to the instrument panel.	Continue to Step 10	Faulty wiring	Replace wiring See See E7030 AIRBAG
10	CHECK ON CORRECT OPERATION	All OK	Problems met	Operation
	Check that the AIR BAG system is working properly.	End of diagnosis	Fault persists	Replace air bag control unit Op. Op. 5580C14 AIR BAG ECU - R+R

‹ Prev Passenger airbag disablement warning light flashing Next › Airbag warning light off / (do not carry out initial test)

Parts & tools for this job For 2003 Alfa Romeo GT

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