Power Window Main Switch

Remove the switch from the door trim panel. See REMOVAL & INSTALLATION .
Check for continuity between the terminals. If continuity is not as specified in the table, replace the power window switch.

Fig 1: Checking Power Window Main Switch Continuity
Courtesy of KIA MOTORS AMERICA, INC.

Fig 2: Identifying Power Window Main Switch Connector Terminals
Courtesy of KIA MOTORS AMERICA, INC.