Hyundai Elantra: Heating, Ventilation and Air Conditioning / Troubleshooting
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
|
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
|
Wire harness
|
No air inlet control
| Heater control assembly
|
No mode control
| Heater control assembly
|
Mode actuator
|
No cooling fan operation
| Cooling fan fuse
|
Fan motor
|
Engine ECM
|
Wire harness
|
SpecificationAir Conditioner
Item
Specification
CompressorTypeGamma 1.6 MPI, Gasoline 2.0 NU MPI, Gasoline 1...
Other information:
Components and components location
Components1. Front wheel speed sensor2. Front wheel speed sensor connector
Repair procedures
Removal1.Turn ignition switch OFF and disconnect the negative (-) battery cable.2.Loosen the wheel nuts slightly...
Wheel Replacement
When replacing the metal wheels for any
reason, make sure the new wheels are
equivalent to the original factory units in
diameter, rim width and offset.
Tire Traction
Tire traction can be reduced if you drive
on worn tires, tires that are improperly
inflated or on slippery road surfaces...