B1A3D-SIREN BATTERY TAMPER / LOSS OF POWER SUPPLY
For a complete wiring diagram Refer to Section 8W.
Possible Causes
|
HARNESS TAMPERING / INTERMITTENT CONDITION
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(A412) FUSED B(+) CIRCUIT
|
(Z905) GROUND OPEN
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SIREN
|
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
No
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 ITM DTC(s).
Does the DTC reset?
Yes
No
3.
CHECK THE (A412) 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 (A412) Fused B(+) circuit at the siren connector.
Does the test light illuminate brightly?
Yes
No
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
No