Hyundai Santa Cruz (NX4A OB) 2021-2025 Service Manual / Heating, Ventilation and Air Conditioning / Troubleshooting

Hyundai Santa Cruz: 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
No air temperature control	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
No engine idle-up when A/C switch ON	2. Wire harness
No air inlet control	1. Heater control assembly
No mode control	1. Heater control assembly
No mode control	2. Mode actuator
No cooling fan operation	1. 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 CompressorType6HVe16 Oil type & CapacityFD46XG (IDEMITSU) 100 ± 10g (3.53 ± 0.3 oz.) Pulley type6PK-TYPE Displacement164 cc/rev Expansi ...

Other information:

Hyundai Santa Cruz (NX4A OB) 2021-2025 Service Manual: Description and Operation
- Description The System offers the following features : • Changing the state of engine ignition and power by using the start button. • Controlling external relays for ACC / IGN1 / IGN2 terminal switching and STARTER, without use of mechanical ignition switch. • Indicating the vehicle ...

Hyundai Santa Cruz (NX4A OB) 2021-2025 Service Manual: Troubleshooting
Diagnosis with Diagnostic tool 1.In the body electrical system, failure can be quickly diagnosed by using the vehicle diagnostic system (Diagnostic tool).The diagnostic system (Diagnostic tool) provides the following information.(1)Fault Code Searching : Checking failure and code number (DTC) ...