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

LH Seat Relay Center


Object Number: 587121  Size: FS
Power Seat Systems Components
Power Seats Description
RH Seat Relay Center
Power Distribution Schematics
Ground Distribution Schematics
Ground Distribution Schematics
Lumbar Support Schematics
Figure 2:

RH Seat Relay Center


Object Number: 587126  Size: FS
Power Seat Systems Components
Power Seats Description
LH Seat Relay Center
Power Distribution Schematics
Ground Distribution Schematics
Lumbar Support Schematics
Lumbar Support Schematics