Transaxle Electronic Control System: Notes
WARNING: This page is about a different car, the 2002 Mercury Villager. However, it is still accessible from the selected car via links, so may be relevant.
The electronic control system controls line pressure, transaxle shifting, and torque converter lockup by means of solenoid operation. The line pressure solenoid regulates transaxle line pressure, controls kickdown, and optimizes clutch and braking pressure during shifting. The shift solenoids actuate friction elements (clutches and bands) to control shifting in the transaxle. The torque converter clutch solenoid minimizes lockup shock and enables the powertrain to deliver a 1:1drive ratio to maximize fuel economy.