Transmission Control Systems: Description and Operation

2011 Toyota Matrix AWD L4-2.4L (2AZ-FE)SECTION Description and Operation











U140F AUTOMATIC TRANSMISSION / TRANSAXLE: AUTOMATIC TRANSAXLE SYSTEM: SYSTEM DIAGRAM

The configuration of the electronic control system in the U140F automatic transaxle is as shown in the following chart.






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.
RENDER: 1.0x

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Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • β€’ You smell fuel, burning insulation, or see smoke.
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