Seat Adjuster Switch
WARNING: This page is about a different car, the 2006 Pontiac Montana SV6, 2006 Chevrolet Uplander, and 2006 Buick Terraza. 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 adjuster switch from the memory seat module (MSM). When a seat switch is pressed, battery positive voltage is applied through the switch contacts and the switch signal circuit to the MSM. The MSM then commands the selected seat motor to move in response to the switch signal.