Step
| Action
| Normal Result(s)
| Abnormal Result(s)*
|
1
|
- Start the vehicle engine.
- Allow vehicle to reach operating temperature.
- Place the blower switch in the high position.
- Place the temprature knob in the full heat (red) position.
- Rotate the mode knob through each of the vent positions:
|
| • | Blower motor will operate at high speed. |
| • | Air temperature will be hot. |
| • | Air flow in the defrost position is through the defrost outlets. |
| • | Air flow in the blend position is through both defrost and heater
outlets. |
| • | Air flow in the heater position is through the heater outlets. |
| • | Air flow in the vent position is through the A/C (vent) outlets. |
| Air flow
does not change outlets:
Mode Actuator Inoperative
|
2
|
- Place the temperature knob in the full cold (blue) position.
- Rotate the mode knob in each of the following positions:
|
| • | Blower motor will operate at high speed. |
| • | Air flow will change to the appropriate outlets. |
| • | Air temperature will be cooler. |
| Air temperature
remains hot:
Temperature Actuator Inoperative
|
3
|
- Press the A/C button.
- Place the temperature knob in the Max. position.
- Depress the A/C button and turn the temperature knob to medium/blend.
- Press the recirculation button.
| An audible
change in the blower will be noticed when in either Max. A/C or when the
recirculation button is pressed.
| No audible change in blower operation:
Air Inlet Actuator Inoperative
|
* Refer
to the appropriate symptom diagnostic table for the applicable abnormal result.
|
