GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Cadillac 🢒 2007 🢒 CTS 🢒 Seats 🢒 Seat Heating and Cooling 🢒 Heated/Cooled Seat Schematics
Figure 1:

Heated Seat - Driver (KA1)
Object Number: 1787430 Size: FS
Master Electrical Component List
Heated Seats Description and Operation
Control Module References
Heated Seat - Passenger (KA1)
Underhood Fuse Block B+ BUS 2 of 2
Left Rear Fuse Block Ign 3 Relay, LFRT HTD Seat MOD, MEM/ADAPT Seat, CCP, HDLP Leveling and IGN 3 Fuses
Left Rear Fuse Block Ign 3 Relay, LFRT HTD Seat MOD, MEM/ADAPT Seat, CCP, HDLP Leveling and IGN 3 Fuses
G402 (2 of 2)
G307
Class 2 (1 of 2) Serial Data Bus - RHD
Figure 2:

Heated Seat - Passenger (KA1)
Object Number: 1787446 Size: FS
Master Electrical Component List
Heated Seats Description and Operation
Control Module References
Heated Seat - Driver (KA1)
Class 2 Serial Data Bus - LHD (2 of 2)
Right Rear Fuse Block B+ Bus
Underhood Fuse Block B+ BUS 2 of 2
Left Rear Fuse Block Ign 3 Relay, LFRT HTD Seat MOD, MEM/ADAPT Seat, CCP, HDLP Leveling and IGN 3 Fuses
Left Rear Fuse Block Ign 3 Relay, LFRT HTD Seat MOD, MEM/ADAPT Seat, CCP, HDLP Leveling and IGN 3 Fuses
G307
G402 (2 of 2)