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

Hyundai Palisade (LX2) 2020-2026 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) 2020-2026 Service Manual: PTC Heater (Diesel only)

    Description and operation Description The PTC (Positive Temperature Coefficient) heater is installed at the exit or the backside of the heater core. The PTC heater is an electric heater using a PTC element as an auxiliary heating device that supplements deficiency of interior heat source in highly effective diesel engi

    Hyundai Palisade (LX2) 2020-2026 Service Manual: General safety information and caution

    General Safety Information and Caution 1. Be careful when driving the vehicle using the smart cruise control system as follows. (1) On curves or inclines/declines • The smart cruise control system may have limits to detect

    Categories

     
    Copyright © 2026 www.hpalisadelx.com - 0.0175