Transmission Control Systems: Description and Operation

U151F AUTOMATIC TRANSAXLE: AUTOMATIC TRANSAXLE SYSTEM: SYSTEM DIAGRAM

The configuration of the electronic control system in the U151F automatic transaxles is as shown in the following chart.










U151F AUTOMATIC TRANSAXLE: AUTOMATIC TRANSAXLE SYSTEM: SYSTEM DESCRIPTION

1. SYSTEM DESCRIPTION

(a) The ECT (Electronic controlled automatic transmission/transaxle) is an automatic transmission/transaxle that electronically controls shift timing using the ECM. The ECM detects electrical signals that indicate engine and driving conditions, and controls the shift point, based on driver habits and road conditions. As a result, fuel efficiency and power transmission performance are improved.

Shift shock has been reduced by controlling the engine and transmission simultaneously.

In addition, the ECT has features such as follows:

* Diagnostic function

* Fail-safe function when a malfunction occurs