Power Window Main Switch

Disconnect the negative (-) battery terminal.
Remove the front door trim panel. (Refer to INTERIOR )
Disconnect the 14P connector from the switch.

Fig 1: Identifying Driver Door Lock Switch
Courtesy of KIA MOTORS AMERICA, INC.
Check for continuity between the terminals in each switch position according to the table. If the continuity condition is not normal, replace the switch.

Fig 2: Terminal Position Chart
Courtesy of KIA MOTORS AMERICA, INC.