GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Cadillac 🢒 2003 🢒 DeVille 🢒 Transmission/Transaxle 🢒 Automatic Transaxle - 4T80-E 🢒 Theft Deterrent System Component Views
Figure 1:

Behind the Front Grille, at the Center of the Radiator Core Support
Object Number: 524983 Size: LF
(1)Hood Ajar Switch (Export)
(2)Night Vision Camera
(3)Ambient Air Temperature Sensor
Figure 2:

Center Rear of the Rear Compartment Lid
Object Number: 524876 Size: LF
(1)Rear Compartment Lid Release Actuator
(2)Rear Comparment Lid Tamper Switch
Figure 3:

Left Front of the Passenger Compartment, in the Steering Column
Object Number: 525021 Size: LF
(1)Ignition Switch
(2)Theft Deterrent Control Module
(3)Ignition Lock Cylinder Control Actuator