Symptoms - Theft Deterrent. Cadillac Seville 2003

For 1990-2009 cars only

Makes 🢒 Cadillac 🢒 2003 🢒 Seville 🢒 Body and Accessories 🢒 Theft Deterrent 🢒 Symptoms - Theft Deterrent

Important: The following steps must be completed before using the symptom tables.

Perform the Diagnostic System Check - Theft Deterrent before using the Symptom Tables in order to verify that all of the following are true:

•	There are no DTCs set.

•	The control module(s) can communicate via the serial data link.

Review the theft systems description and operation in order to familiarize yourself with the system functions. Refer to the following:

•	Theft Systems Description and Operation

•	Content Theft Deterrent (CTD) Description and Operation

•	Vehicle Theft Deterrent (VTD) Description and Operation

•	Inspect for aftermarket accessories which could affect the operation of the theft system. Refer to Checking Aftermarket Accessories in Wiring Systems.

•	Inspect the easily accessible or visible system components for obvious damage or conditions which could cause the symptom.

•	Inspect the ignition key for "PK3" stamped on the shank.

•	Inspect the PASS-Key III® key head for damage.

Faulty electrical connections or wiring may be the cause of intermittent conditions. Refer to Testing for Intermittent Conditions and Poor Connections in Wiring Systems.

Refer to a symptom diagnostic procedure from the following list in order to diagnose the symptom:

•	Content Theft Deterrent (CTD) Alarm Mode Inoperative

•	Content Theft Deterrent (CTD) Does Not Disarm with Key Lock

•	Horn Inoperative in Content Theft Deterrent (CTD) Alarm Mode

•	Lights Inoperative in Content Theft Deterrent (CTD) Alarm Mode

•	Security Indicator Inoperative