Kia Cadenza YG: Heating,Ventilation, Air Conditioning / Troubleshooting

Kia Cadenza YG 2016-2021 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 relay
3. Blower motor
4. Power mosfet
5. Blower speed control switch
6. 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. Compressor
4. A/C pressure transducer
5. A/C switch
6. Evaporator temperature sensor
7. Wire harness
No cool comes out
1. Refrigerant capacity
2. Refrigerant pressure
3. Drive belt.
4. Compressor
5. A/C pressure transducer
6. Evaporator temperature sensor.
7. A/C switch.
8. Heater control assembly
9. Wire harness
Insufficient cooling
1. Refrigerant capacity
2. Drive belt
3. Compressor
4. Condenser
5. Expansion valve
6. Evaporator
7. Refrigerant lines
8. A/C pressure transducer
9. Heater control assembly
No engine idle-up when A/C switch ON
1. Engine ECM
2. Wire harness
No air inlet control
1. Heater control assembly
2. Intake actuator
No mode control
1. Heater control assembly
2. Mode actuator
No cooling fan operation
1. Cooling fan fuse
2. Fan motor
3. Engine ECM
4. Wire harness

    Specification Air Conditioner ItemSpecificationCompressorType6VSX16Oil type & CapacityPAG OIL 100±10Pulley type6PK-TYPEDisplacement160cc/revCondenserHeat rejection14,400 ±5% kcal/hrA/C Pressure transducerThe method to measure the pressureVoltage= 0.

    Special Service Tools Tool (Number and name)IllustrationUse09977-3R000Disc & hub assembly bolt removerRemoval and installation of limiter assembly.

    Other information:

    Kia Cadenza YG 2016-2021 Service Manual: Blind Spot Detection Unit Repair procedures

    Removal 1. Disconnect the negative (-) battery terminal. 2. Remove the rear bumper. (Refer to Body - "Rear Bumper") 3. Remove the BSD unit (A) after loosening the mounting screws.     Take care not to separate the bracket from rear bumper when removing the BSD sensor.

    Kia Cadenza YG 2016-2021 Service Manual: Ambient Sensor Repair procedures

    Inspection 1. Ignition "OFF" 2. Disconnect ambient temperature sensor. 3. Check the resistance of ambient temperature sensor between terminals 1 and 2 whether it is changed by changing of the ambient temperature. 1. Sensor Ground2.

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