Kia Sorento: PTC Heater Inspection - Heater - Heating,Ventilation And Air ConditioningKia Sorento: PTC Heater Inspection

Kia Sorento (MQ4, 2021-2026) Service Manual / Heating,Ventilation And Air Conditioning / Heater / PTC Heater Inspection

Inspection
Operation inspection
Note
Perform this inspection in the PTC ON state.
1.
Turn the IG OFF.
2.
Measure the current value of the wiring with a clamp multimeter.
Pattern
Current (A)
PTC 1 ON
0.1 - 33
PTC 2 ON
0.1 - 33
Total
0.1 - 100

3.
If the current value deviates from the reference value, inspect the relevant wiring.
Resistance Inspection
1.
IG OFF.
2.
Disconnect the PTC heater connector.
3.
Measure the resistance of the PTC heater 1 or 2 terminal and ground terminal.

Resistance value : 0.3 ~ 1.5 Ω

Heating,Ventilation And Air Conditioning — Heater / PTC Heater / Inspection illustration

4.
If the resistance value is not within the standard value, replace it with a new PTC heater.
PTC Heater Removal and Installation
Removal 1. Remove the heater unit. (Refer to Heater - "Heater Unit") 2. Remov...
Controller
...
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