B1A3D

B1A3D-SIREN BATTERY TAMPER / LOSS OF POWER SUPPLY





For a complete wiring diagram Consult Diagrams/Electrical.

- When Monitored:
Continuously with the VTSS armed.

- Set Condition:
If the ITM detects incorrect voltage at the siren this code will set.





Diagnostic Test

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

- Repair wiring as necessary.
- Perform BODY VERIFICATION TEST - VER 1Body Verification Test

No

- 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

- Go to 3

No

- DTC is not active at this time. Test complete.
- Perform BODY VERIFICATION TEST - VER 1Body Verification Test

3. CHECK THE (A414) FUSED B(+) CIRCUIT AT THE SIREN




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

- Go to 4

No

- Repair the (A414) Fused B(+) circuit for an open.
- Perform BODY VERIFICATION TEST - VER 1Body Verification Test

4. CHECK THE (Z905) GROUND CIRCUIT AT THE SIREN




Using a 12-volt test light connected to 12-volts, check the (Z905) Ground circuit at the siren connector.
Does the test light illuminate brightly?

Yes

- Replace the Siren.
- Perform BODY VERIFICATION TEST - VER 1Body Verification Test

No

- Repair the (Z905) Ground circuit for an open.
- Perform BODY VERIFICATION TEST - VER 1Body Verification Test