Alarm Trips On Its Own

*ALARM TRIPS ON ITS OWN

For a complete wiring diagram refer to Diagrams/Electrical





Diagnostic Test

1. CHECK THE LAST ALARM CAUSED BY STATE WITH THE SCAN TOOL

Turn the ignition on.

With the scan tool in BCM, select Data Display and look for any of the following VTA Triggers indicated as causing the symptom:
- Ignition Run Run/Start
- Front driver door
- Hood Security Switch
- Flipper Glass
- Liftgate/Swingate Ajar
- All other door
- ITM

Does the scan tool indicate that any of the above triggered the VTA?

Yes

- Check for a possible intermittent condition caused by the trigger displayed on scan tool.
- Perform VTSS VERIFICATION TEST - 1A. VTSS Verification Test

No

- Go To 2

2. INSPECT FOR A HOOD AJAR

Is this an export vehicle equipped with a hood ajar switch?

Yes

- Go To 3

No

- Go To 4

3. ATTEMPT TO TRIP THE ALARM VIA THE HOOD AJAR SWITCH

Remove the ignition key (but keep in hand).

Lock the vehicle and close all doors, the liftgate, and the 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?

Yes

- Replace the hood ajar switch.
- Perform VTSS VERIFICATION TEST - 1A. VTSS Verification Test

No

- Go To 4

4. TEST FOR AN INTERMITTENT CONDITION

NOTE: The condition that caused the alarm is not present at this time. The following list may help you in identifying the cause of 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?

Yes

- Repair as necessary.
- Perform VTSS VERIFICATION TEST - 1A. VTSS Verification Test

No

- Test Complete.