It means the security system has detected a fault in one or more of the intrusion sensors like door ajar switches for instance and it is alerting you to that fact. You need a shop to test the system with a special scan tool.
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It means the security system has detected a fault in one or more of the intrusion sensors like door ajar switches for instance and it is alerting you to that fact. You need a shop to test the system with a special scan tool.