If the power door lock switch does not operate electrically, the only way to lock the door(s) is with the mechanical key from the outside key hole.
You can lock the doors without the outside key hole as follows:
1. Open the door.
2. Insert the key into the emergency door lock hole and turn the key horizontally to lock.
3. Close the door securely.
Kia Cee'd JD Service Manual: Clutch Actuator Motor 2 (Even Gear) Specifications
Specification
Clutch Actuator Motor 2 (Even Gear)
▷ Specification
Item
Specifications
Operating condition (°C) °F
(20) 68
Output resistance (mΩ)
48 ± 7%
...
Kia Cee'd JD Service Manual: Schematic diagrams
Schematic Diagram
Canister
Canister is filled with charcoal and absorbs evaporated vapor in fuel tank.
The gathered fuel vapor in canister is drawn into the intake manifold by the
ECM/PCM when appropriate conditions are set.
Purge Control Solenoid Valve (PCSV)
...