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:
In certain low-speed collisions the air
bags may not deploy. The air bags are
designed not to deploy in such cases
because they may not provide benefits
beyond the protection of the seat belts.
Front air bags are not designed to inflate
in rear collisions, because occupants
are moved backward by the force of the
impact...
When your brake pads are worn and new
pads are required, you will hear a high
pitched warning sound from your front
or rear brakes. You may hear this sound
come and go or it may occur whenever
you depress the brake pedal.
Note that some driving conditions or
climates may cause a brake squeal
when you first apply (or lightly apply)
the brakes...