| Inspection |
| 1. |
Ignition "ON" |
| 2. |
Using the scan tool. |
| 3. |
Emit intensive light toward photo sensor using a lamp, and check the output voltage change. |
| 4. |
The voltage will rise with higher intensive light and reduce with lower intensive light.
|
| Replacement |
| 1. |
Disconnect the negative (-) battery terminal. |
| 2. |
With the (-) driver, remove the photo sensor (A) from the center of defrost nozzle.
|
| 3. |
Install in the reverse order of removal. |
Description 1. The photo sensor is located at the center of defrost nozzle. 2. The photo sensor contains a photovoltaic (sensitive to sunlight) diode.
Description 1. The ambient temperature sensor is located at the front of the condenser and detects ambient air temperature. It is a negative type thermistor resistance will increase with lower temperature, and decrease with higher temperatures.
Inspection 1. Connect the battery voltage and check the blower motor rotation. 2. If the blower motor voltage is not operated well, substitute with a known-good blower motor and check for proper operation. 3. If the problem is corrected, replace the blower motor.
Inspection 1. Ignition "OFF". 2. Disconnect the intake actuator connector. 3. Verify that the actuator operates to the recirculation position when connecting 12V to the terminal 3 and grounding terminal 7. 4. Verify that the intake actuator operates to the fresh position when connecting in the reverse.