Seat Ventilation Heating and Cooling Module Power and Ground
WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2012 GMC Yukon XL, 2012 GMC Yukon, 2012 Chevrolet Tahoe, 2012 Chevrolet Suburban, and 2012 Chevrolet Avalanche. However, it is still accessible from the selected car via links, so may be relevant.
Battery positive voltage is supplied at all times to the seat ventilation heating and cooling modules through a 30 A fuse that is located in the I/P fuse block. This voltage is to supply power to the TEDs, the blower motors, and the seat heater elements. The heated and cooled seat system will operate only with the ignition in the ON position. Each seat ventilation heating and cooling module is grounded through the module ground circuit and G304 for both the driver and passenger seats.