Kia Soul EV: Heater / High Voltage PTC Heater Repair procedures

Kia Soul EV (PS EV) 2015-2020 Service Manual / Heating,Ventilation, Air Conditioning / Heater / High Voltage PTC Heater Repair procedures

Inspection
1.
Check for output signal in the heater and A/C control unit.
2.
Using the GDS, check whether there is a problem in the interlock.
3.
Check whether the low voltage (12V) is supplied or not.
4.
For inspection, refer to the Self Diagnosis and Fail Safe.
Replacement
   
Be sure to read and follow the “General Safety Information and Caution” before doing any work related with the high voltage system. Failure to follow the safety instructions may result in serious electrical injuries.
Be sure to shut off the high voltage before doing any work related with the high voltage system(Refer to "High Voltage Shut-off Procedure"). Failure to follow the safety instructions may result in serious electrical injuries.
   
Put on gloves to protect your hands.
   
When prying with a flat-tip screwdriver, wrap it with protective tape, and apply protective tape around the related parts, to prevent damage.
Use a plastic panel removal tool to remove interior trim pieces to protect from marring the surface.
Take care not to bend or scratch the trim and panels.
1.
Disconnect the negative (-) battery terminal.
2.
Shut off the high voltage circuit.
(Refer to EV Battery System - "High Voltage Shut-off Procedure")
3.
Remove the floor console assembly.
(Refer to Body -"Floor Console Assembly")
4.
Remove the crash pad lower panel.
(Refer to Body -"Crash Pad Lower Panel")
5.
Remove the glove box housing.
(Refer to Body -"Glove Box Housing")
6.
Remove the crash pad center panel.
(Refer to Body -"Crash Pad Center Panel")
7.
Remove the TPMS receiver.
(Refer to Suspension System -"Tire Pressure Monitoring System")
8.
Remove the high voltage PTC heater ground (A) after loosening the mounting bolt.

9.
Remove the high voltage PTC heater unit (A) after loosening the mounting screws.

10.
Disconnect the high voltage PTC heater cable (A).

   
How to press the high voltage PTC heater cable locker pin
1)
Pull the locker pin (A) in the direction of the arrow.

2)
While pressing the locker pin using a flat driver (A) on the hole (B), pull out the connector.

11.
Remove the high voltage PTC heater core (A) after loosening the mounting screws.

12.
Separate the blower unit (A) from the heater unit (B) after loosening the mounting screws (C).

13.
Install in the reverse order of removal.
High Voltage PTC Heater Description and Operation
Operation Condition 1. The power supplied to the PTC heater should be within DC 240V - 420V (high voltage). 2. The power supplied to the PTC heater should be within 9.0V - 16.0V (low voltage). ...

Temperature Control Actuator Description and Operation
Description The heater unit includes mode control actuator and temperature control actuator. Located in the heater unit, the temperature control actuator regulates the temperature in the following ...

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