Symptom:
*ALARM TRIPS ON ITS OWN
POSSIBLE CAUSES
LAST VTSS CAUSE
ATTEMPT TO TRIP ALARM
INTERMITTENT CONDITION
TEST ACTION APPLICABILITY
1 With the DRBIIIt in TheftAlarm Monitor Display, read theAlarm Tripped By state.
Were there any causes displayed?
All
Yes → Check for a possible intermittent condition with the circuit
indicated by the DRBIIIt.
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).
Lock the vehicle and close all the doors and hood.
Allow the VTSS to arm.
Lightly tap on hood near ajar switch to simulate wind and noise vibration.
Did the VTSS trip to the alarming state?
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
following list may help in indentifying the intermittent condition.
Refer to any Technical Service Bulletins (TSB) that may apply.
Visually inspect related wiring harnesses. Look for chafed, pierced, pinched, or
partially broken wires.
Visually inspect the related wiring harness connectors. Look for loose connections,
broken, bent, pushed out, or corroded terminals.
Were any of the above conditions present?
All
Yes → Repair as necessary
Perform VTSS VERIFICATION TEST - 1A.
No → Test Complete.
216
VEHICLE THEFT/SECURITY
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