Workshop Manuals Factory service & repair Alfa Romeo
Alfa Romeo Brera and Spider Factory Service Manual (2005-2010)23 · Fault diagnosis
23 · Diagnostics

Passenger air bag disabled warning light on

Make
Alfa Romeo
Model
Brera and Spider Factory Service Manual
Year
2005–2010
Section
Instrument panel › Passenger air bag disabled warning light on
Fault diagnosisPassenger air bag disabled warning light on

PASSENGER AIR BAG DISABLED WARNING LIGHT ON

The diasbling warning light is on and the passenger Air Bag is not excluded by the control switch

1CHECK USING DIAGNOSTIC EQUIPMENTALL OKPROBLEMS ENCOUNTEREDACTION

Connect the EXAMINER diagnostic equipment and check the following at the AIR BAG NODE:

  • No system/component errors
  • Plausibility of disabling command
Move on to Step 2System/components faultyContinue following the instructions for the diagnostic equipment
2ELECTRICAL SYSTEM CHECKALL OKPROBLEMS ENCOUNTEREDACTION

Check the continuity and insulation of the wiring between the control switch in the dashboard on the passenger side and the Air Bag control unit

See E7030 AIRBAG

Move on to Step 3Switch wiring short circuited or open circuitReplacing wiring.
3CONTROL SWITCH CHECKALL OKPROBLEMS ENCOUNTEREDACTION

Check that the switch in the dashboard on the passenger side is working properly by carrying out the Test

See Test 5580CG PASSENGER BAG DISABLING SWITCH CHECK

Move on to Step 4Switch not working

Replace the passenger air bag disabling switch

Op. 5580C26 PASSENGER AIR BAG DISABLING KEY LOCK BARREL/SWITCH - R.R.

4ACTIVE DIAGNOSIS CHECKALL OKPROBLEMS ENCOUNTEREDACTION
With the Examiner in Instrument Panel Node mode, check that the passenger air bag warning light is correctly activated in Active Diagnosis.Move on to Step 51. The Air Bag warning light does not operate correctly

1. Replace the Instrument Panel

Op. 5560B10 CONTROL PANEL - R+R

2. The warning light operates correctly

2. Replace the Air Bag control unit

Op. 5580C14 AIR BAG ECU - R+R

5CHECK ON CORRECT OPERATIONALL OKPROBLEMS ENCOUNTEREDACTION
Check that the fault is no longer presentEnd of diagnosisThe fault persists

Replace Body Computer

Op. 5505A32 BODY COMPUTER - R.R

Parts & tools for this job For 2005 Alfa Romeo Brera

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