GM Service Manual Online
For 1990-2009 cars only
Figure 1:

Liftgate (E52)


Object Number: 1113966  Size: MF
(1)Rear Window Wiper Module
(2)Liftglass Ajar Switch
(3)Door Lock Actuator - Liftgate
(4)Liftgate Ajar Switch - Left Connector
(5)Liftgate
(6)Liftgate Ajar Switch - Right Connector
Figure 2:

Left Cargo Door (ZW9)


Object Number: 1114081  Size: MF
(1)Door Contact Plate - Left Cargo (Door)
(2)Rear Window Defogger Grid - Left Cargo
(3)Left Cargo Door
(4)Door Latch
Figure 3:

Right Cargo Door (ZW9)


Object Number: 1114222  Size: MF
(1)Door Contact Plate - Right Cargo (Door)
(2)Door Ajar Switch - Right Cargo
(3)Door Lock Actuator - Cargo
(4)Right Cargo Door
(5)Rear Window Defogger Grid - Right Cargo