Shift Solenoids SL1, SL2 & S4
WARNING: This page is about a different car, the 2003 Toyota RAV4, 2002 Toyota RAV4, 2002 Toyota Highlander, 2001 Toyota RAV4, and 2001 Toyota Highlander. However, it is still accessible from the selected car via links, so may be relevant.
ECM controls transaxle shifting by delivering an output signal to operate proper shift solenoid. Shift solenoids are located on transaxle valve body. See Figure. Shift solenoids are operated in accordance with gearshift lever position. If (SL1) or (SL2) shift solenoid electrical circuit is open or shorted, ECM will switch the other solenoid on or off to obtain a gear that is operational (ECM controlled fail-safe mode). If both (SL1) and (SL2) shift solenoid circuits malfunction, transaxle electronic control will no longer be possible. Transaxle must be operated manually to obtain operational gears shown in illustration. See Figure.