WIS Document: 4039
Model Context: 900 (1998)
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False alarm
Fault symptom
Alarm sounds falsely (without any break in attempt)
Diagnostic procedure
1 Check the cause of the alarm
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Connect the ISAT scan tool.
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Select "READ VALUES".
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Select "LAST ALARM CAUSE".
Is the cause of the alarm registered?
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yes
Continue fault diagnosis of the indicated fault symptom
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no
See "Before replacing a control module".
Canonical Workshop Redirect
For step-by-step instructions, interactive illustrations, and official wiring diagrams, refer to the human-optimized workshop page below.
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