A20 Alarm siren not working
- Make
- Alfa Romeo
- Model
- 147 Factory Service Manual
- Year
- 2000–2002
- Section
- Alarm › A20 Alarm siren not working
A20 Alarm siren not working
When the alarm is operated the siren does not emit auditory signals
| Step | Test procedure | Result | Action |
|---|---|---|---|
| 1 | CHECK WITH DIAGNOSTIC EQUIPMENT NOTE: 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 | OK | |
| Presence of faults in the CAN network |
End of diagnosis | ||
| 2 | ACTIVE DIAGNOSIS WITH DIAGNOSTIC EQUIPMENT Using the diagnostic equipment, carry out the active diagnosis of the siren | OK | Incorrect selection of diagnostic procedure |
| Siren not activated | |||
| 3 | CHECK ON ALARM ELECTRICAL CIRCUIT Check, in order:
| OK | |
| Connections not correct |
End of diagnosis | ||
| 4 | CHECK ON SIREN Check that the alarm system siren is working | OK | |
| Siren not working |
End of diagnosis | ||
| 5 | CORRECT OPERATION CHECK Check that the fault is no longer present | OK | |
| Siren not working |
End of diagnosis | ||
| 6 | CORRECT OPERATION CHECK Check that the fault is no longer present | OK | Incorrect selection of diagnostic procedure |
| Fault persists | Incorrect selection of diagnostic procedure |
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