Description & Operation: Introduction

WARNING: This page is about a different car, the 2002 Toyota ECHO, 2002 Toyota Celica, 2001 Toyota ECHO, and 2001 Toyota Celica. However, it is still accessible from the selected car via links, so may be relevant.

The U340-E and U341-E automatic transaxles are electronically controlled. Transaxle shifting and torque converter lock-up are controlled by an Engine Control Module (ECM).

ECM receives information from various input devices and uses this information to control shift solenoids for transaxle shifting and torque converter lock-up.

An Overdrive (O/D) switch is mounted on the selector lever. When O/D switch is depressed to ON position, transaxle will shift into 4th gear when selector lever is in "D" position, and O/D OFF light on instrument panel will go off. When O/D switch is released to OFF position, transaxle will shift into 3rd gear, and O/D OFF light will illuminate.

Transaxle is equipped with a shift lock and key lock system. Shift lock system prevents selector lever from being moved from Park unless brake pedal is depressed. In case of a malfunction, selector lever can be released by depressing shift lock override button located near selector lever. Key lock system prevents ignition key from being moved from ACC to LOCK position on ignition switch unless selector lever is in Park. For more information on shift lock and key lock system, see appropriate SHIFT INTERLOCK SYSTEMS article.