Power and Grounds
WARNING: This page is about a different car, the 2002 Oldsmobile Aurora and 2001 Oldsmobile Aurora. However, it is still accessible from the selected car via links, so may be relevant.
Battery positive voltage is supplied to the driver and passenger heated seat modules from the rear fuse block IGN 3 RR Fuse when the ignition is in the ON position. This voltage is used to power up the module. Battery positive voltage is also supplied at all times to the heated seat modules from the rear fuse block; HTDST LF Fuse for the left heated seat module or HTDST RF for the right heated seat module.
This battery voltage is used by the module to apply voltage to the heating elements. Both modules are grounded through the module ground circuits to G301. The heated seat switches are grounded through the switch ground circuits and G201.