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

Controls (AG2)


Object Number: 1608394  Size: FS
Master Electrical Component List
Power Seats System Description and Operation
Control Module References
Heated Seat Controls - Driver
ABS, MBEC 1, RTD, STUD 2, VSES/ECAS Fuses; RT DOORS, and SEATS Circuit Breakers
Heated Seat Controls - Driver
G304 and G305
Figure 2:

Heated Seat Controls - Except ULT


Object Number: 1608397  Size: FS
Master Electrical Component List
Power Seats System Description and Operation
Control Module References
Heat Controls - 1 of 4 - AN3 w/ ULT
Driver Seat Controls - AG2
Driver Seat Controls - AG2
Adjustable Pedals Power and Pedals Controls
Power, Ground, DLC and Splice Pack SP205
DLC SP206
Seat Position Sensors - 2 of 2
Front Passenger Heated Seat Elements
G304 and G305
Figure 3:

Heat Controls (AN3 w/ULT) 1 of 4


Object Number: 1608399  Size: FS
Master Electrical Component List
Heated/Cooled Seats Description and Operation
Control Module References
Heat Controls - 2 of 4 - AN3 w/ ULT
Heated Seat Controls - Driver
Ignition Switch - ACCY/RUN/START, RUN, and START Busses, IGN A and CRANK Fuses
IGN 3 Fuse - 1 of 2
IGN 3 Fuse - 2 of 2 ULT
B+ Bus - 2 of 2
G304 and G305
G304 and G305
Figure 4:

Heat Controls (AN3 w/ULT) 2 of 4


Object Number: 1608402  Size: FS
Master Electrical Component List
Heated/Cooled Seats Description and Operation
Control Module References
Heat Controls - 3 of 4 - AN3 w/ ULT
Heat Controls - 1 of 4 - AN3 w/ ULT
Ignition Switch - ACCY/RUN/START, RUN, and START Busses, IGN A and CRANK Fuses
IGN 3 Fuse - 1 of 2
IGN 3 Fuse - 2 of 2 ULT
IGN 3 Fuse - 2 of 2 ULT
G200 2 of 3
G200 2 of 3
Figure 5:

Heat Controls (AN3 w/ULT) 3 of 4


Object Number: 1608404  Size: FS
Master Electrical Component List
Heated/Cooled Seats Description and Operation
Control Module References
Heat Controls - 4 of 4 - AN3 w/ ULT
Heat Controls - 2 of 4 - AN3 w/ ULT
Heat Controls - 1 of 4 - AN3 w/ ULT
Figure 6:

Heat Controls (AN3 w/ULT) 4 of 4


Object Number: 1608405  Size: FS
Master Electrical Component List
Heated/Cooled Seats Description and Operation
Control Module References
Seat Adjuster Switch
Heat Controls - 3 of 4 - AN3 w/ ULT
Heat Controls - 2 of 4 - AN3 w/ ULT
Figure 7:

Seat Adjuster Switch


Object Number: 1608406  Size: FS
Master Electrical Component List
Lumbar Support Description and Operation
Control Module References
Lumbar/Bolster Switch
Heat Controls - 4 of 4 - AN3 w/ ULT
Lumbar/Bolster Switch
Figure 8:

Lumbar/Bolster Switch


Object Number: 1608408  Size: FS
Master Electrical Component List
Lumbar Support Description and Operation
Control Module References
Seat Motors
Seat Adjuster Switch
Seat Adjuster Switch
Figure 9:

Seat Motors


Object Number: 1608410  Size: FS
Master Electrical Component List
Lumbar Support Description and Operation
Control Module References
Seat Position Sensors - 1 of 2
Lumbar/Bolster Switch
Figure 10:

Seat Position Sensors 1 of 2


Object Number: 1608411  Size: FS
Master Electrical Component List
Memory Seats Description and Operation
Control Module References
Seat Position Sensors - 2 of 2
Seat Motors
Seat Position Sensors - 2 of 2
Seat Position Sensors - 2 of 2
Figure 11:

Seat Position Sensors 2 of 2


Object Number: 1608413  Size: FS
Master Electrical Component List
Memory Seats Description and Operation
Control Module References
Seat Position Sensors - 1 of 2
Heated Seat Controls - Driver
Front Passenger Heated Seat Elements
Memory Seat Module
Memory Seat Module
Seat Position Sensors - 1 of 2
Seat Position Sensors - 1 of 2