Heating, Ventilation, and Air Conditioning

PTC Heater

14steps
~84min
3/5difficulty
Done 0 of 14

Repair Procedures

Inspection

Resistance Test

  1. Turn the ignition off.

  2. Disconnect the PTC heater connector.

  3. Measure the resistance between terminals 1, 2, 3 of the PTC heater and ground.

    Resistance: 0.3–1.5 Ω

    [Diesel]

    Pin No. Function
    1 PTC 2
    2 Ground
    3 PTC 1
    4 Ground
    5 PTC 3

    [Gasoline]

    Pin No. Function
    1 -
    2 Ground
    3 PTC ON(+)
    4 -
  4. If the measured resistance does not meet the specification, replace the PTC heater with a new one.

Replacement

[Gasoline]

  1. Disconnect the negative (-) battery terminal.

  2. Remove the floor console side cover [LH] (A).

  3. Disconnect the PTC heater connector.

  4. Remove the PTC heater core (A) after loosening the PTC heater mounting screws.

  5. To install, reverse the removal procedure.

[Diesel]

  1. Disconnect the negative (-) battery terminal.

  2. Remove the floor console side cover [LH] (A).

  3. Disconnect the PTC heater connector (A).

  4. Remove the PTC heater core (A) after loosening the PTC heater mounting screws.

  5. To install, reverse the removal procedure.

Test yourself

A quick Kia Forte BD quiz: every answer comes with an explanation and a link to the manual page.