Chrysler Town and Country 2003 Owner's Manual page 977

INTERNAL ULTRASONIC FAULT (EXPORT ONLY) —
TEST
12 Turn the ignition off.
Gain access to the RKE/Thatcham Alarm Module 16-way connector.
While back probing, measure the voltage of the Front Intrusion Sensor Signal circuit
at the Thatcham Alarm Module 16-way connector.
Turn the ignition on while observing the voltmeter.
NOTE: Voltage will only be present during the first 6 seconds when the
ignition is turned on.
Is the voltage above 10.0 volts when the ignition is initially turned on?
Yes → Repair the Front Intrusion Sensor Signal circuit for an open.
→ Replace the RKE/Thatcham Alarm Module.
No
ACTION
Perform VTSS VERIFICATION TEST - 1A.
Perform VTSS VERIFICATION TEST - 1A.
VEHICLE THEFT/SECURITY
953
Continued
APPLICABILITY
All