Workshop Manuals Factory service & repair Alfa Romeo
01 General data and specifications02 Maintenance03 Diagnosis – checks04 Engine (1.6 and 2.0 Twin Spark)05 Clutch06 Gearbox (manual and Selespeed)07 Front axle08 Brakes, ABS and traction control09 Steering10 Suspension and wheels11 Heating, air conditioning and washers12 Electrical equipment13 Body14 Body panels and reinforcement15 Wiring diagrams16 Connectors and pin-outs17 Wiring harnesses18 Fault diagnosis19 Special tools
Alfa Romeo 147 Factory Service Manual (2000-2002)18 · Fault diagnosis
18 · Diagnostics

R03 Passenger air bag disabled warning light

Make
Alfa Romeo
Model
147 Factory Service Manual
Year
2000–2002
Section
Air bag › R03 Passenger air bag disabled warning light
Fault diagnosisR03 Passenger air bag disabled warning light

R03 Passenger air bag disabled warning light

On starting, the 'Passenger Air Bag Disabled' warning light comes on and remains on for longer than 4 seconds (control unit initial test)

StepTest procedureResultAction
1PASSENGER AIR BAG DISABLING SWITCH CHECK

Verify:

  • passenger Air Bag disabling switch correctly positioned;
  • correct operation of the passenger Air Bag disabling switch : Wiring diagram E7030 AIRBAG
OK

Move onto step 2

Switch not correctly positioned
  • Position the switch correctly

End of diagnosis

Passenger Air Bag disabling switch defective
  • Replace the passenger Air Bag disabling switch Op. 5580C26

End of diagnosis

2CHECK WITH DIAGNOSTIC EQUIPMENT

Connect the Examiner to the diagnostic socket.

Check that there are no faults

OK

Move onto step 3

Errors present
  • Continue, following the instructions which come with the equipment

End of diagnosis

3ELECTRICAL EQUIPMENT CHECK

Verify:

  • connections between Air Bag control unit and instrument panel
  • connections between Air Bag control unit and passenger Air Bag disabling switch
  • correct supplies for Air Bag control unit and instrument panel
  • Wiring diagram E7030 AIRBAG
OK

Move onto step 4

Wiring faulty
  • Renew the wiring

End of diagnosis

Incorrect supplies

End of diagnosis

4CORRECT OPERATION CHECK

Check that the fault is no longer present

OK

Incorrect selection of diagnostic procedure

Warning light bulb does not go out at all

Incorrect selection of diagnostic procedure

Parts & tools for this job For 2000 Alfa Romeo 147

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