Circuit/System Description
WARNING: This page is about a different car, the 2019 Chevrolet Malibu. However, it is still accessible from the selected car via links, so may be relevant.
The following components have a unique current versus oil pressure characteristic that is used to properly upshift or downshift the transmission:Transmission Control Solenoid Valve 1 - 6
The data for each solenoid valve is programmed into the control module K71.