Kia Soul EV: Heating,Ventilation, Air Conditioning / Troubleshooting

Kia Soul EV (PS EV) 2015-2020 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 lack of refrigerant, air flow or compressor.
Use the following table to find the cause of the problem. The numbers indicate the order of the likely cause of the problem. Check each part in order. If necessary, replace the corresponding parts.
After fixing the area of malfunction, check the complete system to ensure satisfactory performance.
Standard :
Symptom
Suspected 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
2. A/C fuse
3. Limiter clutch 
4. Compressor
5. A/C pressure transducer
6. A/C switch
7. Evaporator temperature sensor
8. Wire harness
Vented air not cold
1. Refrigerant capacity
2. Refrigerant pressure
3. Drive belt
4. Limiter clutch 
5. Compressor
6. A/C pressure transducer
7. Evaporator temperature sensor
8. A/C switch
9. Heater control assembly
10. Wire harness
Insufficient cooling
1. Refrigerant capacity
2. Drive belt
3. Limiter clutch 
4. Compressor
5. Condenser
6. Expansion valve
7. Evaporator
8. Refrigerant lines
9. A/C pressure transducer
10. Heater control assembly
No engine idle-up when A/C switch ON
1. MCU
2. Wire harness
No air inlet control
1. Heater control assembly
No mode control
1. Heater control assembly
No cooling fan operation
1. Cooling fan fuse
2. Fan motor
3. Engine ECM
4. Wire harness

Special Service Tools
Special Service Tools Personal Protective Equipment NameIllustrationDescriptionInsulation glovesUsed when inspecting or working on the high voltage components[Insulation performance : 1000V / ...

Air Conditioning System
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