K83 PASSENGER AIR BAG DISABLEMENT WARNING LIGHT OFF / (DO NOT CARRY OUT INITIAL TEST) - Alfa - 156 - eLearn

3233101 - K83 PASSENGER AIR BAG DISABLEMENT WARNING LIGHT OFF / (DO NOT CARRY OUT INITIAL TEST)

On starting, the passenger Air Bag disablement warning light does not come on (it should come on for 4 seconds to indicate the initial test on the Air Bag control unit, and then go out)

1	CHECK WITH DIAGNOSTIC EQUIPMENT	All OK	Problems met	Operation
		Results of the tests
	Connect the diagnostic equipment (Examiner or other instruments) to the diagnostic socketCheck that there is a regular dialogue with the Air Bag control unit	Continue to Step 2	Lack of dialogue with the control unit	Restore: the connection between the Air Bag control unit and the diagnostic connector the Air Bag control unit supply ( See E7030 AIRBAG ).
		Continue to Step 2	An error is detected in the control unit	Continue according to the instructions for the diagnostic equipment
2	CHECKING SPEEDOMETER POWER SUPPLY	All OK	Problems met	Operation
	Check, in order: connection between airbag control unit and speedometer speedometer power supply ( See E4021 SPEEDOMETER ).	Continue to Step 3	Connections not correct	Restore the connections
			Component defective	Replace the component involved (if a fuse is involved, search for the cause of the problem)

3	SPEEDOMETER CHECK	All OK	Problems met	Operation
	Check the operation of the speedometer: see DESCRIPTION AND OPERATION: 5560 INSTRUMENT PANEL	Continue to Step 4	Instrument not working	Replace the speedometer Op. 5560B02
4	CHECK CORRECT OPERATION	All OK	Problems met	Operation
	Check that the fault is no longer present	End of diagnosis	Fault persists	Search for the fault starting from another symptom'