Rear Power Window Motor

Disconnect the negative (-) battery terminal.
Remove the rear door trim.
(Refer to Body - "REAR DOOR TRIM ")
Disconnect the motor connector from the motor.

Fig 1: Locating Rear Power Window Motor With Connector End View
Courtesy of KIA MOTORS AMERICA, INC.
Connect the motor terminals No. 1 and No. 2 directly to battery voltage (12V) and check that the motor operates smoothly. If the operation is abnormal, replace the motor.

Fig 2: Rear Power Window Motor Terminal Position Chart

Courtesy of KIA MOTORS AMERICA, INC.