3022560 - A20 ALARM SIREN NOT WORKING

When the alarm is operated the siren does not emit auditory signals
Results of the tests
1CHECK WITH DIAGNOSTIC EQUIPMENTAll OKProblems metOperation
The auditory signals may or may not be activated, according to the various country modes. For more details Characteristic of working principle   5580E  anti-theft device
Connect the diagnostic equipment to the diagnostic socket and check whether there are faults on the CAN network		Continue to Step 2Presence of faults in the CAN networkRestore the connections on the nodes concerned
2ACTIVE DIAGNOSIS WITH DIAGNOSTIC EQUIPMENTAll OKProblems metOperation
Using the diagnostic equipment, carry out the active diagnosis of the sirenSiren not activatedContinue to Step 3
3CHECK ON ALARM ELECTRICAL CIRCUITAll OKProblems metOperation

Check, in order:

  • Supply and earth of siren
  • Continuity and insulation of alarm electrical circuit wiring diagram See   E7015  ALARM
Continue to Step 4Connections not correctRenew the electrical connections See   E7015  ALARM
4CHECK ON SIRENAll OKProblems metOperation
Check that the alarm system siren is working Continue to Step 5Siren not workingReplace the siren Op.   5580E40 
5CORRECT OPERATION CHECKAll OKProblems metOperation
Check that the fault is no longer presentContinue to Step 6Siren not workingReplace the Body Computer Op.   5505A32 
6CORRECT OPERATION CHECKAll OKProblems metOperation
Check that the fault is no longer presentFault persistsSearch for the fault starting from another symptom'