Diagnostic Test

WARNING: This page is about a different car, the 2007 Chrysler PT Cruiser. However, it is still accessible from the selected car via links, so may be relevant.

1) INSPECT SIREN HARNESS
Inspect the wiring harness to the siren for any signs of tampering or intermittent condition.

Were there any problems found?

Yes
1. Repair wiring as necessary.
2. Perform BODY VERIFICATION TEST - VER 1 .
No
1. Go to 2).
2) DETERMINING IF DTC IS CURRENT
With a scan tool, read and record DTC(s).

With the scan tool, clear DTC(s).

Turn the ignition off and remove the key from the ignition.

Lock and close all doors to allow the VTSS to go from pre-arm to armed status and wait one minute.

Disarm the VTSS.

Using the scan tool, read DTC(s).

Does the DTC reset?

Yes
1. Go to 3).
No
1. DTC is not active at this time. Test complete.
2. Perform BODY VERIFICATION TEST - VER 1 .
3) CHECK THE (A414) FUSED B(+) CIRCUIT AT THE SIREN

Fig 1: Checking Fused B(+) Circuit At Siren Connector For Open
Courtesy of CHRYSLER LLC

Turn the ignition off.

Disconnect the Siren connector.

Using a 12-volt test light connected to ground, check the (A414) Fused B(+) circuit at the siren connector.

Does the test light illuminate brightly?

Yes
1. Go to 4).
No
1. Repair the (A414) Fused B(+) circuit for an open.
2. Perform BODY VERIFICATION TEST - VER 1 .
4) CHECK THE (Z902) GROUND CIRCUIT AT THE SIREN

Fig 2: Checking Ground Circuit At Siren Connector For Open
Courtesy of CHRYSLER LLC

Using a 12-volt test light connected to 12-volts, check the (Z902) Ground circuit at the siren connector.

Does the test light illuminate brightly?

Yes
1. Replace the Siren in accordance with the Service Information.
2. Perform BODY VERIFICATION TEST - VER 1 .
No
1. Repair the (Z902) Ground circuit for an open.
2. Perform BODY VERIFICATION TEST - VER 1 .