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False alarm

Symptom: Alarm sounds falsely (without any break in attempt)

False alarm

Fault symptom

Alarm sounds falsely (without any break in attempt)



Diagnostic procedure

1 Check the cause of the alarm




- Connect the ISAT scan tool.

- Select "READ VALUES".

- Select "LAST ALARM CAUSE".


Is the cause of the alarm registered?

yes

Continue fault diagnosis of the indicated fault symptom


no

See "Before replacing a control module".