Torque Reduction Control
This control improves the shift quality due to sending torque reduction request signal from TCM to ECM and cutting engine torque increase of shift at N-D shift, N-R shift and 1 -> 2 -> 3 -> 4 -> 5.
If accelerator pedal is depressed rapidly, this control establishes the upper limit value of engine torque and avoids engine flare at 2 -> 3, 3 -> 4 and 4 -> 2 of clutch to clutch shift.