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Home >> Subaru >> 2012 >> Forester X, Automatic Trans >> Repair and Diagnosis >> External Pages >> Different car >> Section 2 (Automatic Transmission - Mechanism & Function (5AT)) >> Transmission Control Module (TCM) >> Shifting Control >> Engine Cooperation Control

Engine Cooperation Control

WARNING: This page does not describe the selected car, but rather 15 other vehicles, including the 2014 Subaru Tribeca, 2014 Subaru Outback, 2014 Subaru Legacy, 2013 Subaru Tribeca, and 2013 Subaru Outback. However, it is still accessible from the selected car via links, so may be relevant.

When shifting, TCM outputs torque down request signal. Receiving the signal, ECM retards the ignition timing of each cylinder to temporarily reduce the torque developed by the engine. In synchronization with this control, TCM constantly monitors the shifting status using the vehicle speed sensor and turbine sensor, and performs feedback control to obtain optimum shifting. This control enables smooth and comfortable shifting under any conditions.

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