Workshop Manuals Factory service & repair Alfa Romeo
01 General information02 Specifications03 Manufacturing data and tolerances04 Tightening torques05 Fluids and lubricants06 Maintenance07 Diagnostic checks08 Engine09 Clutch10 Gearbox and differential11 Transmission (4x4)12 Axles and driveshafts13 Brakes14 Steering15 Suspension and wheels16 Heating, air conditioning and auxiliary units17 Electrical equipment18 Body fittings19 Body panels and frame20 Wiring diagrams and electrical functions21 Wiring harnesses22 Connectors and pin-outs23 Fault diagnosis24 Special tools
Alfa Romeo 159 Factory Service Manual (2005-2011)23 · Fault diagnosis
23 · Diagnostics

Seat belt unfastened warning light on

Make
Alfa Romeo
Model
159 Factory Service Manual
Year
2005–2011
Section
Instrument panel › Seat belt unfastened warning light on
Fault diagnosisSeat belt unfastened warning light on

SEAT BELT UNFASTENED WARNING LIGHT ON

The warning light remains on even when the driver''s seat belt is fastened.

The Air Bag Node sends the message to the centre front courtesy light where the seat belt not fastened warning light is housed

1ACTIVE DIAGNOSIS CHECKALL OKPROBLEMS ENCOUNTEREDACTION
With the Examiner in the Instrument Panel Node ambient check that the seat belts not fastened warning light is correctly activated in Active Diagnosis.Move on to Step 21.The seat belt not fastened warning light is not flashing

1.Replace the centre front courtesy light

Op. 7040E40 MODULAR FRONT COURTESY LIGHT - R R

2.Seat belt fastened switch short circuited to earth

2.Replace seat belt mounting and switch

Op. 7065A15 ANCHORAGE ROD OF A FRONT SEAT BELT ON A SEAT WITH HEIGHT ADJUSTMENT, LEFT OR RIGHT - R.R.

3.Wiring between air bag control unit and courtesy light short circuited to earth3.Renew wiring insulation
2CHECK USING DIAGNOSTIC EQUIPMENTALL OKPROBLEMS ENCOUNTEREDACTION
Keeping the diagnostic equipment connected, check at the Air Bag Node that the fault is not longer presentEnd of diagnosis

Parts & tools for this job For 2005 Alfa Romeo 159

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