Dodge Neon 2001 Service Manual page 217

*VTSS SIREN INOPERATIVE —
TEST
4 Use the DRBIII and set up as follows:
Use the Scope input cable CH7058, Cable to Probe adapter CH7062, and the red and
black test probes.
Connect the scope input cable to the channel one connector on the DRBIII . Attach
the red and black leads and the cable to probe adapter to the scope input cable.
Select DRBIII Standalone.
Select lab scope.
Select Live.
Select 12 volt square wave.
Press F2 for Scope.
Press F2 and use the down arrow to set voltage range to 20 volts. Press F2 again
when complete.
Disconnect the Siren connector.
Connect the black lead to the chassis ground. Connect the red lead to the Siren
Control circuits (cavities 1 & 2) in the Siren connector.
Observe the voltage displayed on the DRBIII Lab Scope.
Is there a voltage square wave present in each cavity every 1 or 2 seconds?
Yes → Replace the Siren in accordance with the Service Information.
→ Go To 5
No
5 Turn the ignition off.
Disconnect the Siren connector.
Disconnect the Remote Keyless Entry Module connector.
Measure the resistance of the Siren Control circuit between the Siren connector
(cavities 1&2) and the RKE module connector (cavity 15).
Is the resistance below 5.0 ohms at all cavities?
Yes → Go To 6
→ Repair the Siren Control circuit for an open between the Siren
No
6 Turn the ignition off.
Disconnect the Siren connector.
Disconnect the Remote Keyless Entry Module connector.
Measure the resistance of the Siren Control circuit to ground.
Is the resistance below 1000.0 ohms?
Yes → Repair the Siren Control circuit for a short to ground.
→ Replace the Remote Keyless Entry Module in accordance with the
No
Continued
ACTION
Perform VTSS VERIFICATION TEST - 1A.
and the RKE module connector.
Perform VTSS VERIFICATION TEST - 1A.
Perform VTSS VERIFICATION TEST - 1A.
Service Information.
Perform VTSS VERIFICATION TEST - 1A.
VEHICLE THEFT/SECURITY
209
APPLICABILITY
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All
All