Operation CHARM: Car repair manuals for everyone.

A Symptoms - Theft Deterrent

IMPORTANT PRELIMINARY CHECKS BEFORE STARTING
1. Perform the Diagnostic System Check Theft Deterrent (Domestic) before using the Symptom Tables in order to verify that all of the following are true: Diagnostic System Check
^ There are no DTCs set.
^ The control module(s) can communicate via the serial data link.
2. Review the vehicle theft deterrent description and operation in order to familiarize yourself with the system functions. Refer to Vehicle Theft Deterrent (VTD) Description and Operation.

Visual/physical Inspection
^ Inspect for aftermarket devices which could affect the operation of the PASSLOCK(TM) system. Refer to Checking Aftermarket Accessories in Diagrams.
^ Inspect the easily accessible or visible system components for obvious damage or conditions which could cause the symptom.

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

Symptom List
Refer to a symptom diagnostic procedure from the following list in order to diagnose the symptom:
^ Security indicator always ON
Refer to Security Indicator Always On or Flashing.
^ Security indicator inoperative
Refer to Security Indicator Inoperative.