General Information

The theft deterrent system on this vehicle consists of the following 2 separate systems:
^ The personal automotive security system (PASS-Key(R) II)
^ The content theft deterrent (CTD) system

These systems are described and diagnosed separately within this section.
The PASS-Key(R) II is designed in order to help prevent vehicle theft. The PASS-key(R) II disables the engine unless the driver uses a key with a specific electrical resistance in the ignition switch. The system consists of the following components:
^ The instrument cluster (SECURITY indicator - Buick)
^ The ignition key
^ The theft deterrent module
^ The park/neutral position (PNP) switch
^ The powertrain control module (PCM)
^ The remote indicator bank (SECURITY indicator Oldsmobile)
^ The theft deterrent relay
^ The steering column (ignition) lock cylinder

The CTD system is designed in order to provide a warning in the event of a forced entry. The attempted forced entry may come through either of the following areas:
^ The doors
^ The rear compartment

When a forced entry is attempted, the alarm warning system activates. The warning system causes the following actions to occur:
^ The horns sound intermittently.
^ The exterior lights flash in unison for approximately 3 minutes.

The CTD system consists of the following components:
^ The door jamb switches
^ The door lock cylinder switches
^ The instrument cluster (SECURITY indicator Buick)
^ The lamp control module (LCM)
^ The rear compartment lid tamper switch
^ The remote function actuator (RFA) module
^ The remote indicator bank (SECURITY indicator Oldsmobile)

The yellow SECURITY indicator in the instrument cluster (Buick) or the remote indicator bank (Oldsmobile) is controlled by both of the following systems:
^ In the PASS-key(R) II system, the theft deterrent module controls the indicator only when the ignition switch is in RUN or START.
^ In the CTD system, the remote function actuator (RFA) module controls the indicator only when the ignition switch is OFF.

If the engine cranks but does not start, the PASS-key(R) II system is not causing the problem. The CTD system does not affect the engine starting.