The theft deterrent system on this vehicle is comprised of 2 separate systems, the vehicle theft deterrent (VTD) system and the content theft deterrent (CTD) system. VTD prevents drive away theft by keeping the vehicle from starting. CTD is the vehicle alarm system which discourages unauthorized entry into the vehicle. These system are described and diagnosed separately within this section.
SECURITY Telltale
The SECURITY Telltale on the message center is controlled by both the vehicle theft deterrent (VTD) system and the content theft deterrent (CTD) system. The SECURITY telltale is a part of the reconfigurable message center on the instrument cluster. The SECURITY telltale is controlled by the body control module through the class 2 data line.
| • | The VTD system contained in the body control module (BCM) commands the instrument cluster to control the SECURITY telltale only when the ignition switch is ON. The VTD system uses the telltale as a malfunction indicator. |
| • | The CTD system also contained in the BCM commands the instrument cluster to control the indicator only when the ignition switch is OFF. The CTD system uses the SECURITY telltale to identify system status. |
CTD/VTD Description and Operation
Refer to the following for the appropriate description and operation:
