Kia Forte: PTC Heater Description

The PTC (Positive Temperature Coefficient) heater is installed at the exit or the backside of the heater core.

The PTC heater is an electric heater using a PTC element as an auxiliary heating device that supplements deficiency of interior heat source in highly effective gasoline engine. The electric heater heats up the interior by directly heating the air that passes through the heater. The name itself implies that the element has a proportional resistance change sensitive to temperature.

Operation Principle

Heater control outputs a PTC ON signal and operates PTC relay.

Operating Condition

PTC heater operates according to the following conditions :

Auto Defogging Actuator Replacement

1. Disconnect the negative (-) battery terminal. 2. Remove the glove box housing. (Refer to Body -"Glove Box Housing") ...

PTC Heater Inspection

Operating Logic Test (Manual only) Inspect the PTC operation with the confirmation logic below : 1. Entering (1) Set the Floor mode ...

See also:

Spark Plug Inspection
[On vehicle inspection] 1. Accelerate the engine to about 3,000 rpm 3 times or more. 2. Remove the spark plug. ...

Battery Vehicle parasitic current inspection
1. Turn the all electric devices OFF, and then turn the ignition switch OFF. 2. Close all doors except the engine hood, and then lock all d ...

G-Sensor Calibration
1. Ignition "OFF", connect GDS. 2. Ignition "ON" & Engine "OFF" select vehicle name and ESC system. ...