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

Driver Door Module (DDM), Driver Door Switch Assembly (DDSA), Door Lock Switch, and Latch Assembly


Object Number: 1788050  Size: FS
Master Electrical Component List
Power Door Locks Description and Operation
Control Module References
Front Passenger Door Module (FPDM) Door Lock Switch and Latch Assembly
Power, Ground and Serial Data 2 of 2
Class 2 Serial Data Bus - LHD (1 of 2)
Driver Door Module (DDM) Power, Ground and Serial Data
Class 2 Serial Data Bus - LHD (1 of 2)
Figure 2:

Front Passenger Door Module (FPDM), Door Lock Switch, and Latch Assembly


Object Number: 1788052  Size: FS
Master Electrical Component List
Power Door Locks Description and Operation
Control Module References
Left Rear Door Module (LRDM), Right Rear Door Module (RRDM), and Rear Door Latch Assemblies
Driver Door Module (DDM), Driver Door Switch Assembly (DDSA), Door Lock Switch and Latch Assembly
Front Passenger Door Module (FPDM) Power, Ground and Serial Data
Power, Ground and Serial Data 2 of 2
Class 2 Serial Data Bus - LHD (2 of 2)
Figure 3:

Left Rear Door Module (LRDM), Right Rear Door Module (RRDM), and Rear Door Latch Assemblies


Object Number: 1788054  Size: FS
Master Electrical Component List
Power Door Locks Description and Operation
Control Module References
Front Passenger Door Module (FPDM) Door Lock Switch and Latch Assembly
Class 2 Serial Data Bus - LHD (1 of 2)