GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 GMC_Truck 🢒 1999 🢒 GMC Suburban - 4WD 🢒 Body and Accessories 🢒 Theft Deterrent 🢒 Theft Deterrent System Component Views
Figure 1:

Electronic Variable Orifice (EVO)/Passlock™ Module
Object Number: 277987 Size: MF
(1)EVO/Passlock™ Module
Figure 2:

Passlock Sensor
Object Number: 394392 Size: SH
(1)Passlock™ Lock Cylinder and Key Insert
(2)Passlock™ Sensor and Ignition Switch Location
Figure 3:

Passenger Compartment - Center Console Components
Object Number: 340118 Size: MF
(1)Shock Sensor - Early Production Only
(2)Shock Sensor Connector - Early Production Only
(3)Vehicle Communication Unit
(4)Heated Seat Switch Rear Connector
(5)Stereo Controller, Rear
(6)Stereo Controller, Rear Connector
(7)Auxiliary Power Connector, Rear Console
(8)CD Changer
(9)CD Changer Connector
(10)Audio Amplifier
(11)Audio Amplifier Connectors
(12)Sub Woofer Connector
(13)C304
(14)Sub Woofer
(15)C305
(16)Security LED
(17)Console Trim Cover
(18)Body Control Module