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
|
2. Heater control assembly
|
No compressor operation
| 1. Refrigerant capacity
|
2. A/C fuse
|
3. Compressor
|
4. A/C pressure transducer
|
5. A/C switch
|
6. Evaporator temperature sensor
|
7. Wire harness
|
Vented air not cold
| 1. Refrigerant capacity
|
2. Refrigerant pressure
|
3. Drive belt
|
4. Compressor
|
5. A/C pressure transducer
|
6. Evaporator temperature sensor
|
7. A/C switch
|
8. Heater control assembly
|
9. Wire harness
|
Insufficient cooling
| 1. Refrigerant capacity
|
2. Drive belt
|
3. Compressor
|
4. Condenser
|
5. Expansion valve
|
6. Evaporator
|
7. Refrigerant lines
|
8. A/C pressure transducer
|
9. Heater control assembly
|
No engine idle-up when A/C switch is ON
| 1. Engine ECM
|
2. Wire harness
|
No air inlet control
| 1. Heater control assembly
|
No mode control
| 1. Heater control assembly
|
2. Mode actuator
|
No cooling fan operation
| 1. Cooling fan fuse
|
2. Fan motor
|
3. Engine ECM
|
4. Wire harness
|
Other information:
Specification
AcceleratorPositionOutput Voltage (V)APS1APS2C.T0.7 ~ 0.80.33 ~ 0.43W.O.T3.85 ~ 4.351.93 ~ 2.18
...
Before you start driving, adjust the
rearview mirror to the center on the
view through the rear window.
WARNING
Make sure your line of sight is
not obstructed. Do not place
objects in the rear seat, cargo
area, or behind the rear headrests
which could interfere with
your vision throu ...