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

Power, Ground, DLC, Switches, and References


Object Number: 1899860  Size: FS
Master Electrical Component List
Memory Seats Description and Operation
Control Module References
Motors
BATT5, TILT/TELE SW/MEM SEAT MOD, ACCA/DRIV DR SW, IGN SW/INTR SENSR, ONSTAR, and PRK BRK SOLA Fuses
BATT5, TILT/TELE SW/MEM SEAT MOD, ACCA/DRIV DR SW, IGN SW/INTR SENSR, ONSTAR, and PRK BRK SOLA Fuses
BATT5, TILT/TELE SW/MEM SEAT MOD, ACCA/DRIV DR SW, IGN SW/INTR SENSR, ONSTAR, and PRK BRK SOLA Fuses
BATT1, HTD SEAT LH, HTD SEAT RH, PWR LUMBAR LH/RH Fuses, and DR CNTRLS, PWR SEAT Circuit Breakers
BATT1, HTD SEAT LH, HTD SEAT RH, PWR LUMBAR LH/RH Fuses, and DR CNTRLS, PWR SEAT Circuit Breakers
Tilt/Telescoping Steering Column Schematics
Power, Ground, and Class 2
G301
Figure 2:

Motors


Object Number: 1899866  Size: FS
Master Electrical Component List
Power Seats System Description and Operation
Control Module References
Lumbar Support
Power, Ground, DLC, Switches, and References
Tilt/Telescoping Steering Column Schematics
Tilt/Telescoping Steering Column Schematics
Figure 3:

Lumbar Support


Object Number: 1899885  Size: FS
Master Electrical Component List
Lumbar Support Description and Operation
Control Module References
Motors
BATT1, HTD SEAT LH, HTD SEAT RH, PWR LUMBAR LH/RH Fuses, and DR CNTRLS, PWR SEAT Circuit Breakers
G301