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Symptom: *ALARM TRIPS ON ITS OWN POSSIBLE CAUSES LAST VTSS CAUSE ATTEMPT TO TRIP ALARM INTERMITTENT CONDITION TEST ACTION APPLICABILITY 1 With the DRBIII t in Inputs/Outputs, read the Last VTSS Cause state. Were there any causes displayed? All Yes → Check for a possible intermittent condition with the circuit indicated by the DRBIII t. Perform VTSS VERIFICATION TEST - 1A. No → Go To 2 2 Is this an export vehicle equipped with a hood ajar switch? All Yes → Go To 3 No → Go To 4 3 Remove the ignition key (but keep in hand). All Yes → Replace the hood ajar switch. Perform VTSS VERIFICATION TEST - 1A. No → Go To 4 4 NOTE: The condition that caused the alarm is not present at this time. The All Yes → Repair as necessary Perform VTSS VERIFICATION TEST - 1A. No → Test Complete. 959 VEHICLE THEFT/SECURITY |