Workshop Manuals Factory service & repair Alfa Romeo
Alfa Romeo 147 Factory Service Manual (2000-2004)22 · Fault diagnosis
22 · Diagnostics

Alarm does not come on

Make
Alfa Romeo
Model
147 Factory Service Manual
Year
2000–2004
Section
Alarm › Alarm does not come on
Fault diagnosisAlarm does not come on

ALARM DOES NOT COME ON

When operating the alarm with the remote control:

  • the LED does not flash,
  • the doors do not open/close
  • the lights do not flash
  • the siren does not emit auditory signals
Results of the tests
0PRELIMINARY CHECKSAll OKProblems metOperation

The activation of the auditory signals and flashing of the direction indicators depends on the various country modes.

For more details Characteristic of working principle 5580E anti-theft device

First check:

  • charge of remote control battery incorporated in the key
  • key correct, i.e. remote control enabled
Continue to Step 1Remote control battery run downReplace the remote control battery
Key not correctConnect the test equipment to the tester connection and carry out correct memorization of the remote control
1CHECK WITH DIAGNOSTIC EQUIPMENTAll OKProblems metOperation

Connect the diagnostic equipment (Examiner or other instruments) to the diagnostic socket and check in order:

  • presence of faults in the CAN network
  • whether there are faults in the alarm system
Continue to Step 2Presence of faults in the CAN networkRepair the connections on the interested nodes
An error is detected in the alarm systemContinue following the instructions for the diagnostic equipment
2CORRECT OPERATION CHECKAll OKProblems metOperation
Check that the fault is no longer presentFault persistsSearch for the fault starting from another symptom'

Parts & tools for this job For 2000 Alfa Romeo 147

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