GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Cadillac 🢒 2008 🢒 XLR 🢒 Seats 🢒 Power Seats 🢒 Passenger Seat Schematics
Figure 1:

8-Way Power Seat Controls
Object Number: 1899887 Size: FS
Master Electrical Component List
Power Seats System Description and Operation
Control Module References
Lumbar Support
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
G302, G401, and G402
Figure 2:

Lumbar Support
Object Number: 1899890 Size: FS
Master Electrical Component List
Lumbar Support Description and Operation
Control Module References
8-Way Power Seat Controls
BATT1, HTD SEAT LH, HTD SEAT RH, PWR LUMBAR LH/RH Fuses, and DR CNTRLS, PWR SEAT Circuit Breakers
G302, G401, and G402