Symptom:
*VTSS SIREN INOPERATIVE (EXPORT ONLY)
POSSIBLE CAUSES
SIREN FUNCTIONAL TEST
OPEN FUSED B(+) CIRCUIT
OPEN GROUND CIRCUIT
FAULTY SIREN
SIREN CONTROL CIRCUIT OPEN
SIREN CONTROL CIRCUIT SHORTED TO GROUND
REMOTE KEYLESS ENTRY MODULE
TEST ACTION APPLICABILITY
1 Ensure the IOD fuse is installed and the vehicle is in the Customer Usage Mode.
Using the DRBIIIt, read the module configuration and ensure it is configured for
PREMIUM VTA.
With the DRBIIIt, actuate the SIREN.
Does the Siren actuate and sound proper?
All
Yes → The condition that caused this symptom is currently not present.
Inspect the related wiring harness for a possible intermittent
condition. Look for any chafed, pierced, pinched or partially
broken wires.
Perform VTSS VERIFICATION TEST - 1A.
No → Go To 2
2 Disconnect the Siren connector.
Measure the voltage of the Fused B(+) circuit in the Siren connector.
Is the voltage above 10.0 volts?
All
Yes → Go To 3
No → Repair the Fused B(+) circuit for an open between the IOD fuse
and the Intrusion Sensor.
Perform VTSS VERIFICATION TEST - 1A.
3 Turn the ignition off.
Disconnect the Siren connector.
Measure the resistance between ground and the Ground circuit in the Siren
connector.
Is the resistance below 5.0 ohms?
All
Yes → Go To 4
No → Repair the Ground circuit for an open.
Perform VTSS VERIFICATION TEST - 1A.
233
VEHICLE THEFT/SECURITY
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