Kia Optima Hybrid: Heating,Ventilation, Air Conditioning / Troubleshooting

Kia Optima Hybrid (TF HEV) 2016-2020 Service Manual / Heating,Ventilation, Air Conditioning / Troubleshooting

Troubleshooting

Problem Symptoms Table

Before replacing or repairing air conditioning components, first determine if the malfunction is due to the refrigerant charge, air flow or compressor.

Use the table below to help you find the cause of the problem. The numbers indicate the priority of the likely cause of the problem. Check each part in order. If necessary, replace these parts.

After correcting the malfunction, check the complete system to ensure that performance is satisfactory.

Standard:

Symptom

Suspect Area

No blower operation

1)	Blower fuse

2)	Blower motor

3)	PWM Blower Module

4)	Blower speed control switch

5)	Wire harness

No air temperature control

1)	Engine coolant capacity

2)	Heater control assembly

No compressor operation

1)	Refrigerant capacity

A/C Fuse

3)	Compressor

4)	A/C pressure transducer

5)	A/C switch

6)	Evaporator temperature sensor

7)	Wire harness

8)	Cooling fan

9)	HEV system

A/C does not blow cold air

1)	Refrigerant capacity

2)	Refrigerant pressure

3)	Compressor

4)	A/C pressure transducer

5)	Evaporator temperature sensor.

6)	A/C switch.

7)	Heater control assembly

8)	Wire harness

Insufficient cooling

1)	Refrigerant capacity

2)	Compressor.

3)	Condenser.

4)	Expansion valve.

5)	Evaporator.

6)	Refrigerant lines

7)	A/C pressure transducer

8)	Heater control assembly

No air inlet control

1)	Heater control assembly

No mode control

1)	Heater control assembly

2)	Mode actuator

No cooling fan operation

1)	Cooling fan fuse

Fan motor

3)	Engine ECM

4)	Wire harness

Special Service Tools

Personal Protective Equipment NameIllustrationDescriptionInsulation gloveUsed when inspecting or working on the high voltage components[Insulation performance : 1000V / 300A or above]Insulation shoesUsed ...

Air Conditioning System

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Other information:

Kia Optima Hybrid (TF HEV) 2016-2020 Service Manual: General Information

Identification Number Locations Identification Number Description Vehicle Identification Number 1. World Manufacturer Identifier (WMI) - KNA : Passenger vehicle, MPV(Multipurpose Passenger Vehicle)/SUV(Sports Utility Vehicle)/RV(Recreational Vehicle) 2. Vehicle line - G : OPTIMA 3. Model & Series ...

Kia Optima Hybrid (TF HEV) 2016-2020 Service Manual: Heated Oxygen Sensor (HO2S) Repair procedures

Inspection 1. Turn the ignition switch OFF. 2. Disconnect the HO2S connector. 3. Measure resistance between the HO2S terminals 4 and 5 [B1/S1]. Measure resistance between the HO2S terminals 3 and 4 [B1/S2]. 4. Check that the resistance is within the specification. HO2S [Bank 1/Sensor 1] (Linear type) ...