Workshop Manuals Factory service & repair Fiat
01 General information02 Specifications03 Manufacturing data and tolerances04 Tightening torques05 Fluids and lubricants06 Maintenance07 Diagnostic checks08 Engine09 Clutch10 Gearbox and differential11 Axles and driveshafts12 Brakes13 Steering14 Suspension and wheels15 Heating, air conditioning and auxiliary units16 Electrical equipment17 Body fittings18 Body panels and frame19 Wiring diagrams and electrical functions20 Wiring harnesses21 Connectors and pin-outs22 Fault diagnosis23 Special tools
Fiat Stilo Factory Service Manual (2001-2007)22 · Fault diagnosis
22 · Diagnostics

Alarm and door lock do not come on

Make
Fiat
Model
Stilo Factory Service Manual
Year
2001–2007
Section
Alarm › Alarm and door lock do not come on
Fault diagnosisAlarm and door lock do not come on

ALARM AND DOOR LOCK DO NOT COME ON

When the alarm is operated using the remote control, all the doors do not close and the deterrent led does not work.

The alarm signal is managed by the body computer node that receives a signal from the remote control unit and controls central locking of the doors and boot.

Results of the tests
0PRELIMINARY CHECKSAll OKProblems metOperation
Check the operation of the system using the second remote control unit supplied with the car.Continue to Step 1The fault persistsContinue to Step 3
1CHECKING REMOTE CONTROL BATTERYAll OKProblems metOperation
Check that the defective remote control battery is charged.Continue to Step 2Battery dischargedReplace the remote control battery)
2CHECKING WITH DIAGNOSTIC EQUIPMENTAll OKProblems metOperation

Connect the Examiner diagnostic equipment and check:

  • that the defective remote control unit is properly stored;
  • operation of individual defective remote control keys.
Continue to Step 6Remote control unit not stored correctly.Store the remote control unit.
Malfunction of individual remote control keys.Change the remote control unit.
3CHECKING DOOR LOCKAll OKProblems metOperation
Check the correct operation of the central lockingContinue to Step 4The central locking does not workDiagnose the central locking system See table P11 CENTRAL LOCKING
4CHECKING WITH DIAGNOSTIC EQUIPMENTAll OKProblems metOperation

Connect the Examiner diagnostic equipment and check:

  • for faults in the body computer node;
  • presence of an alarm signal, in parameter mode.
Continue to Step 5Malfunction of radio receiver on body computer node.Change the body computer node Op. 5505A32.
Alarm system not present on car.Check car compliance.
5CHECKING CENTRAL LOCKINGAll OKProblems metOperation
Check that the radio receiver aerial on the body computer node is properly connected.Continue to Step 6Radio receiver aerial incorrectly connected.Connect the radio receiver aerial correctly to the body computer node.
6CHECKING CORRECT OPERATIONAll OKProblems metOperation
Check that the fault is no longer presentEnd of diagnosisFault persistsSearch for the fault starting from another symptom'

Parts & tools for this job For 2001 Fiat Stilo

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