Hyundai Accent (HC): Heating, Ventilation and Air Conditioning / Troubleshooting

Hyundai Accent (HC) (2017 - 2022) 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	Blower fuse
	Blower relay
	Blower motor
	Power mosfet
	Blower speed control switch
	Wire harness
No air temperature control	Engine coolant capacity
No air temperature control	Heater control assembly
No compressor operation	Refrigerant capacity
	A/C fuse
	Compressor
	A/C pressure transducer
	A/C switch
	Evaporator temperature sensor
	Wire harness
Vented air not cold	Refrigerant capacity
	Refrigerant pressure
	Drive belt
	Compressor
	A/C pressure transducer
	Evaporator temperature sensor
	A/C switch
	Heater control assembly
	Wire harness
Insufficient cooling	Refrigerant capacity
	Drive belt
	Compressor
	Condenser
	Expansion valve
	Evaporator
	Refrigerant lines
	A/C pressure transducer
	Heater control assembly
No engine idle-up when A/C switch ON	Engine ECM
No engine idle-up when A/C switch ON	Wire harness
No air inlet control	Heater control assembly
No air inlet control	Intake actuator
No mode control	Heater control assembly
No mode control	Mode actuator or cable
No cooling fan operation	Cooling fan fuse
	Fan motor
	Engine ECM
	Wire harness
	Blower resister
	Power mosfet

Specifications

Air Conditioning System

Other information:

Hyundai Accent (HC) (2017 - 2022) Service Manual: Description and Operation

- OBD-II Review 1. Overview The California Air Resources Board (CARB) began regulation of On Board Diagnostics (OBD) for vehicles sold in California beginning with the 1988 model year. The first phase, OBD-I, required monitoring of the fuel metering system, Exhaust Gas Recirculation (EGR) system and additional emission related components.

Hyundai Accent (HC) (2017 - 2022) Service Manual: Components and Components Location

- Components Connector Pin Information NoConnector AConnector BConnector CConnector DConnector 1Battery (+)Front wiper low backup switch inputStatic bending light (Left)_output-Dedicated DRL output 2RPAS power_outputRear washer switch imput-Key Interlock switch inputTail lamp relay output 3Ignition 1Rear wiper switch inputB-CAN (High)-Power window relay output 4Key IN switchFront wiper switch inputB-CAN (Low)-Front fog lamp relay output 5-Front wiper intermittent volume inputAuto lig

Hyundai Accent (HC): Heating, Ventilation and Air Conditioning / Troubleshooting

Specifications

Air Conditioning System

Other information:

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