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

LH Power Windows


Object Number: 491473  Size: FS
Power Door Systems Components
Power Windows Circuit Description
RH Power Windows
Handling ESD Sensitive Parts Notice
Handling ESD Sensitive Parts Notice
Handling ESD Sensitive Parts Notice
Serial Data Class 2 (3 of 3)
LH Rear Door Power Door Lock
Rear Door Dimming
Driver Door Power Door Lock
Memory Function Switch
Front Door Dimming
Figure 2:

RH Power Windows


Object Number: 491476  Size: FS
Power Door Systems Components
Power Windows Circuit Description
LH Middle Door Power Window
LH Power Windows
Handling ESD Sensitive Parts Notice
Handling ESD Sensitive Parts Notice
Serial Data Class 2 (2 of 3)
Serial Data Class 2 (2 of 3)
Right Rear Door Power Door Lock (w/o B9Q)
Rear Door Dimming
Passenger Front Door Power Door Lock
Front Door Dimming
Figure 3:

LH Middle Door Power Window


Object Number: 525866  Size: FS
Power Door Systems Components
Power Windows Circuit Description
RH Middle Door Power Window
RH Power Windows
Handling ESD Sensitive Parts Notice
G302-V4U/B9Q
LH Middle Door Power Door Lock (w/V4U)
G302-V4U/B9Q CKT 551
Figure 4:

RH Middle Door Power Window


Object Number: 525867  Size: FS
Power Door Systems Components
Power Windows Circuit Description
LH Middle Door Power Window
Handling ESD Sensitive Parts Notice
G302-V4U/B9Q
G302-V4U/B9Q
RH Middle Door Power Door Lock (w/ V4U)
G201-V4U/BQ9