GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 GMC_Truck 🢒 2008 🢒 TopKick C-Series (Conventional) C4/C5 🢒 Power and Signal Distribution 🢒 Wiring Systems and Power Management 🢒 Door Component Views
Figure 1:

Left Front Door
Object Number: 1963700 Size: LF
(1)Door Lock Switch - Driver (AU3)
(2)Outside Rearview Mirror Switch (DB6)
(3)Window Switch - Driver (A31)
(4)Outside Rearview Mirror Switch Connector
(5)Window Switch - Driver Connector
(6)Door Lock Switch - Driver Connector
(7)Speaker - Left Front Connector
(8)Speaker - Left Front Tweeter (ZQ2)
(9)Speaker - Left Front
(10)Speaker - Left Front Connector
(11)Window Motor - Driver (A31)
(12)Door Latch Assembly - Driver X1 (Lock Actuator)
(13)Door Latch Assembly - Driver X2 (Jamb Switch)
Figure 2:

Left Rear Door (Crew Cab)
Object Number: 1963702 Size: LF
(1)Speaker - Left Rear
(2)Window Switch - Left Rear
(3)X301 (12 Cavities - Crew Cab)
(4)Window Motor - Left Rear
(5)Door Latch Assembly - Left Rear
Figure 3:

Right Front Door
Object Number: 1963704 Size: LF
(1)Door Lock Switch - Passenger (AU3)
(2)Window Switch - Passenger (A31)
(3)Window Switch - Passenger Connector
(4)Door Lock Switch - Passenger Connector
(5)Speaker - Right Front Tweeter Connectorr
(6)Speaker - Right Front Tweeter (ZQ2)
(7)Door Latch Assembly - Passenger X1 C1 (Lock Actuator)
(8)Door Latch Assembly - Passenger X2 (Jamb Switch)
(9)Window Motor - Passenger (A31)
(10)Speaker - Right Front Connector
(11)Speaker - Right Front
Figure 4:

Right Rear Door (Crew Cab)
Object Number: 1963709 Size: LF
(1)Window Switch - Right Rear
(2)Speaker - Right Rear
(3)Door Latch Assembly - Right Rear
(4)Window Motor - Right Rear
(5)X302 (12 Cavities - Crew Cab)