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

Driver - w/o Z75


Object Number: 745121  Size: FS
Master Electrical Component List
Heated Seats Description and Operation
Driver - w/Z75
SEO 1, SEO 2, and AUX PWR Fuses
SEO 1, SEO 2, and AUX PWR Fuses
IGN 3 Fuse
Park Lamp Control, INTPRK and PARK LPS Fuse
G304
G304
G203 - 2 of 4
G203 - 2 of 4
G203 - 1 of 4
Figure 2:

Driver - w/Z75


Object Number: 816306  Size: FS
Master Electrical Component List
Heated Seats Description and Operation
Front Passenger
Driver - w/o Z75
SEO 1, SEO 2, and AUX PWR Fuses
SEO 1, SEO 2, and AUX PWR Fuses
G304
G304
G305
IGN 3 Fuse
Park Lamp Control, INTPRK and PARK LPS Fuse
G203 - 2 of 4
G203 - 2 of 4
G203 - 1 of 4
Figure 3:

Front Passenger


Object Number: 745123  Size: FS
Master Electrical Component List
Heated Seats Description and Operation
Heated Seat - LR
Driver - w/Z75
SEO 1, SEO 2, and AUX PWR Fuses
SEO 1, SEO 2, and AUX PWR Fuses
IGN 3 Fuse
IGN 3 Fuse
Interior Parklamp Supply - 3 of 3
G304
G305
G304
G200 - 1 of 2
G200 - 1 of 2
G200 - 2 of 2
Figure 4:

Heated Seat - LR


Object Number: 745124  Size: FS
Master Electrical Component List
Heated Seats Description and Operation
Heated Seat - RR
Front Passenger
SEO 1, SEO 2, and AUX PWR Fuses
IGN 3 Fuse
SEO 1, SEO 2, and AUX PWR Fuses
IGN 3 Fuse
Heated Seat - RR
Park Lamp Control, INTPRK and PARK LPS Fuse
Park Lamp Control, INTPRK and PARK LPS Fuse
G305
G203 - 1 of 4
G203 - 1 of 4
Figure 5:

Heated Seat - RR


Object Number: 745125  Size: FS
Master Electrical Component List
Heated Seats Description and Operation
Heated Seat - LR
SEO 1, SEO 2, and AUX PWR Fuses
SEO 1, SEO 2, and AUX PWR Fuses
Heated Seat - LR
Park Lamp Control, INTPRK and PARK LPS Fuse
Park Lamp Control, INTPRK and PARK LPS Fuse
G306
G203 - 1 of 4
G203 - 1 of 4