Hyundai Tucson Owners & Service Manuals

Hyundai Tucson: 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:
SymptomSuspected Area
No blower operation1. Blower fuse
2. Blower relay
3. Blower motor
4. Power mosfet
5. Blower speed control switch
6. Wire harness
No air temperature control1. Engine coolant capacity
2. Heater control assembly
No compressor operation1. 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 cold1. 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 cooling1. 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 ON1. Engine ECM
2. Wire harness
No air inlet control1. Heater control assembly
No mode control1. Heater control assembly
2. Mode actuator
No cooling fan operation1. Cooling fan fuse
2. Fan motor
3. Engine ECM
4. Wire harness

    Heating, Ventilation and Air Conditioning
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    Specifications
    - Specification Air Conditioner ItemSpecification CompressorTypeDVE16C Oil type & CapacityPAG30 120 ± 10g (3.85 ± 0.3oz.) Pulley type6PK-TYPE Displacement60cc/rev Expansion valveTypeBlo ...

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