PTC Heater
Repair Procedures
Inspection
Resistance Test
Turn the ignition off.
Disconnect the PTC heater connector.
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 - If the measured resistance does not meet the specification, replace the PTC heater with a new one.
Replacement
[Gasoline]
Disconnect the negative (-) battery terminal.
Remove the floor console side cover [LH] (A).

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

To install, reverse the removal procedure.
[Diesel]
Disconnect the negative (-) battery terminal.
Remove the floor console side cover [LH] (A).

Disconnect the PTC heater connector (A).

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


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.