Rear Power Window Switch

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

Fig 1: Disconnecting Power Mirror Switch Connector From Door Trim With Terminals
Courtesy of HYUNDAI MOTOR AMERICA
Check for continuity between the terminals in each switch position as shown in (Fig 2) and (Fig 3).
[Rear Power Window Switch Inspection]

Fig 2: Rear Power Window Switch Connector Terminals Continuity Chart
Courtesy of HYUNDAI MOTOR AMERICA

[Rear Sear Heater Switch Inspection]

Fig 3: Rear Sear Heater Switch Connector Terminals Continuity Chart
Courtesy of HYUNDAI MOTOR AMERICA