•  The electric AT oil pump generates hydraulic pressure in the oil line of the automatic transmission when the i-stop (engine-stop control) permit conditions are met and the engine is stopped.

•  The electric AT oil pump driven by the electric AT oil pump driver control unit based on the signals from the TCM.

•  By ensuring oil pressure while i-stop is operating, smooth startability after the engine is restarted has been realized.

•  The electric AT oil pump driver control unit is installed to the side of the brake pedal.

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•  The electric AT oil pump is installed to the transmission case.

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•  The TCM sends the electric AT oil pump drive signal to the electric AT oil pump driver control unit.

•  The electric AT oil pump driver control unit operates/stops the electric AT oil pump based on the signals from the TCM.

•  The electric oil pump generates hydraulic pressure by the operation of the electric motor based on the operation signal from the electric AT oil pump driver control unit.

•  The electric AT oil pump driver control unit sends the electric AT oil pump operating condition signal to the TCM according to the electric AT oil pump condition.

•  The TCM monitors the condition of the electric AT oil pump according to the electric AT oil pump operating condition signal and outputs the DTC if the electric AT oil pump malfunction occurs.