Kia Sportage: Coupling Assembly / Oil hydraulic Motor(Actuator) Description and operation
The 4WD ECM controls the Pump Motor Pump (Actuator) to generating an oil pressure.
The pressure engages a multiple disk clutch to transfer torque to the rear wheels.
The torque to the rear wheels varies according to the pressure on the clutch.

Inspection
All units are filled up with coupling fluid (ultra-low viscosity ATF)
prior to shipping. Inspect ...
Other information:
Signal Waveform
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There is no separate sensor inside E-CVVT. Exhaust side 4-flank type
target wheel is applied in order to compare CKPS and CMPS and calculate
the valve timing.
...
This multi-purpose passenger vehicle is defined as a Sports Utility Vehicle (SUV).
Utility vehicles have a significantly higher rollover rate than other types of vehicles.
SUV's have higher ground clearance and a narrower track to make them capable of
performing in a wide variety of offroa ...