GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 GMC_Truck 🢒 2007 🢒 Terrain 🢒 Power and Signal Distribution 🢒 Wiring Systems and Power Management 🢒 Vehicle Access Component Views
Figure 1:

Left Front Door (Right Front Similar)
Object Number: 1787870 Size: MF
(1)Door Lock Switch
(2)Tweeter
(3)Outside Rearview Mirror (OSRVM)
(4)Window Motor
(5)X501 (X502 - LH), X601 (X602 - RH)
(6)Speaker
(7)Step Well Lamp
(8)Door Latch
(9)Window Switch
Figure 2:

Left Rear Door (Right Rear Similar)
Object Number: 1787872 Size: MF
(1)Window Motor
(2)Tweeter
(3)X701 (Left Hand), X801 (Right Hand)
(4)Speaker
(5)Window Switch
(6)Door Latch
Figure 3:

Liftgate
Object Number: 1787877 Size: MF
(1)X402
(2)Rear Window Wiper Module
(3)Liftgate Glass
(4)Liftgate Key Cylinder
(5)Liftgate Contact Switch
(6)Liftgate Actuator
(7)Center High Mounted Stop Lamp (CHMSL)
(8)X902
(9)X901