Resistance Test
WARNING: This page is about a different car, the 2024 Kia Sorento. However, it is still accessible from the selected car via links, so may be relevant.
- Turn the ignition switch OFF.
- Disconnect the PTC heater connector.
- Measure the resistance between terminal 1, 2, 3 of PTC heater and ground wire.
Resistance: 0.3 ~ 1.5 Ω;
 Courtesy of KIA MOTORS AMERICA, INC.
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- PTC 1
- PTC 2
- If the measured resistance is not within specification, replace the PTC heater with new one.