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

Driver Door Switch Assembly (DDSA) Power, Gd., Inputs and Outputs


Object Number: 491443  Size: FS
Power Door Systems Components
Door Description
Driver Door Switch Assembly (DDSA) Internal Details (w/Memory (A45))
Handling ESD Sensitive Parts Notice
Handling ESD Sensitive Parts Notice
Serial Data Class 2 (3 of 3)
Memory Function Switch
Front Door Dimming
G200
Front Door Dimming
Memory Function Switch
Figure 2:

Driver Door Switch Assembly (DDSA) Internal Details (w/Memory (A45))


Object Number: 491488  Size: FS
Power Door Systems Components
Door Description
Driver Door Module (DDM) Power, Gd., Inputs and Outputs
Driver Door Switch Assembly (DDSA) Power, Gd., Inputs and Outputs
Handling ESD Sensitive Parts Notice
Handling ESD Sensitive Parts Notice
Front Door Dimming
Figure 3:

Driver Door Module (DDM) Power, Gd., Inputs and Outputs


Object Number: 491446  Size: FS
Power Door Systems Components
Door Description
Passenger Front Door Module (PFDM) Power, Gd., Inputs and Outputs
Driver Door Module (DDM) Power, Gd., Inputs and Outputs
Handling ESD Sensitive Parts Notice
Handling ESD Sensitive Parts Notice
PWR WDO Circuit Breaker
Serial Data Class 2 (3 of 3)
G200
Driver Door Power Door Lock
Front Door Dimming
Memory Function Switch
Figure 4:

Driver Door Module (DDM) Power, Gd., Inputs and Outputs


Object Number: 491449  Size: FS
Power Door Systems Components
Door Description
Driver Door Module (DDM) Power, Gd., Inputs and Outputs
Driver Door Switch Assembly (DDSA) Internal Details (w/Memory (A45))
Handling ESD Sensitive Parts Notice
Outside Rearview Mirror Schematics
Data Link Connector Schematics
Driver Door Power Door Lock
LH Power Windows
Driver Door Power Door Lock
Figure 5:

Passenger Front Door Module (PFDM) Power, Gd., Inputs and Outputs


Object Number: 491451  Size: FS
Power Door Systems Components
Door Description
Passenger Front Door Module (PFDM) Power, Gd., Inputs and Outputs
Driver Door Module (DDM) Power, Gd., Inputs and Outputs
Handling ESD Sensitive Parts Notice
PWR WDO Circuit Breaker
Serial Data Class 2 (2 of 3)
G201 - Body Harness
RH Power Windows
Figure 6:

Passenger Front Door Module (PFDM) Power, Gd., Inputs and Outputs


Object Number: 491452  Size: FS
Power Door Systems Components
Door Description
Left Middle Door Module (LMDM) Power, Gd., Inputs and Outputs (w/ V4U)
Passenger Front Door Module (PFDM) Power, Gd., Inputs and Outputs
Handling ESD Sensitive Parts Notice
Outside Rearview Mirror Schematics
Data Link Connector Schematics
Passenger Front Door Power Door Lock
Figure 7:

Left Middle Door Module (LMDM) Power, Gd., Inputs and Outputs (w/ V4U)


Object Number: 525853  Size: FS
Power Door Systems Components
Door Description
Right Middle Door Module (RMDM) Power, Gd., Inputs and Outputs (w/V4U)
Passenger Front Door Module (PFDM) Power, Gd., Inputs and Outputs
Handling ESD Sensitive Parts Notice
Rear Fuse Block Battery Voltage
Serial Data Class 2 (3 of 3)
PWR WDO Circuit Breaker
AUDIO AMP and EXP LTG/LK Fuses
LH Middle Door Power Door Lock (w/V4U)
PWR WDO Circuit Breaker
G302-V4U/B9Q
G302-V4U/B9Q CKT 551
Figure 8:

Right Middle Door Module (RMDM) Power, Gd., Inputs and Outputs (w/ V4U)


Object Number: 525861  Size: FS
Power Door Systems Components
Door Description
Left Rear Door Module (LRDM) Power, Gd., Inputs and Outputs
Left Middle Door Module (LMDM) Power, Gd., Inputs and Outputs (w/ V4U)
Handling ESD Sensitive Parts Notice
Rear Fuse Block Battery Voltage
Serial Data Class 2 (2 of 3)
PWR WDO Circuit Breaker
AUDIO AMP and EXP LTG/LK Fuses
PWR WDO Circuit Breaker
G302-V4U/B9Q
G302-V4U/B9Q
RH Middle Door Power Door Lock (w/ V4U)
G201-V4U/BQ9
Figure 9:

Left Rear Door Module (LRDM) Power, Gd., Inputs and Outputs


Object Number: 491454  Size: FS
Power Door Systems Components
Door Description
Right Rear Door Module (RRDM) Power, Gd., Inputs and Outputs
Right Middle Door Module (RMDM) Power, Gd., Inputs and Outputs (w/V4U)
Handling ESD Sensitive Parts Notice
PWR WDO Circuit Breaker
RR BLO, RRDR MDL, HVAC BLO, STOP LP, IGN SW, and TSIG/HAZ Fuses
PWR WDO Circuit Breaker
LH Rear Door Power Door Lock
G302 - LH Front Seat
LH Power Windows
Data Link Connector Schematics
G302 - RH Front Seat
Figure 10:

Right Rear Door Module (RRDM) Power,Gd., Inputs and Outputs


Object Number: 491469  Size: FS
Power Door Systems Components
Door Description
Left Rear Door Module (LRDM) Power, Gd., Inputs and Outputs
Handling ESD Sensitive Parts Notice
PWR WDO Circuit Breaker
RR BLO, RRDR MDL, HVAC BLO, STOP LP, IGN SW, and TSIG/HAZ Fuses
PWR WDO Circuit Breaker
Right Rear Door Power Door Lock (w/o B9Q)
G302 - RH Front Seat
RH Power Windows
Data Link Connector Schematics
G201 - Body Harness
G302 - RH Front Seat