Hyundai Palisade (LX2): Heating,Ventilation And Air Conditioning / Troubleshooting

Hyundai Palisade (LX2) 2020-2025 Service Manual / Heating,Ventilation And 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
Suspected 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. Clutch limiter
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. Clutch limiter
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. Clutch limiter
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. Engine ECM
2. Wire harness
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
2. Fan motor
3. Engine ECM
4. Wire harness

    Special Tools Tool (Number and name) Illustration Use 09977-3R000 Clutch bolt remover Removal and installation of clutch bolt

    Other information:

    Hyundai Palisade (LX2) 2020-2025 Service Manual: Intake Actuator

    Description and operation Description The intake actuator is located at the blower unit. It regulates the intake door by a signal from the control unit. Pressing the intake selection switch will shift between recirculation and fresh air modes.

    Hyundai Palisade (LX2) 2020-2025 Service Manual: Special service tools

    Special Service Tools Tool Name / Number Illustration Description LKA Compensator (09890-3V100) Used for compensating front view camera unit Tolerance Compensation Plate for Surround View Monitoring (09957-CM100)

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