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

Power Seat and Lumbar Controls


Object Number: 1472922  Size: FS
Master Electrical Component List
Power Seats System Description and Operation
Body Control Module (BCM) Programming/RPO Configuration
Heat Controls
B+ Bus - Underhood Fuse Block
A/C, BLOWER, HTD SEAT, TBC, TURN/HAZ FR, and TURN/HAZ RR Fuses
FUEL PMP, LH HDLP, and RH HDLP Fuses
Splice Pack SP106 and G106 - 1 of 2
Figure 2:

Heat Controls


Object Number: 1472924  Size: FS
Master Electrical Component List
Power Seats System Description and Operation
Body Control Module (BCM) Programming/RPO Configuration
Power Seat and Lumbar Control
B+ Bus - Underhood Fuse Block
A/C, BLOWER, HTD SEAT, TBC, TURN/HAZ FR, and TURN/HAZ RR Fuses
A/C, BLOWER, HTD SEAT, TBC, TURN/HAZ FR, and TURN/HAZ RR Fuses
B+ Bus - Underhood Fuse Block
A/C, BLOWER, HTD SEAT, TBC, TURN/HAZ FR, and TURN/HAZ RR Fuses
Seat Belt Schematics
Splice Pack SP106 and G106 - 1 of 2