Other information:
Removal
1.
Disconnect the negative (-) battery terminal.
2.
Remove the photo & auto light sensor.
(Refer to Windshield Wiper/Washer - "Rain Sensor")
Installation
1.
Install the auto light sensor.
2.
Connect the negative (-) battery terminal.
Description
The A/C Pressure Transducer (APT) converts the pressure value
of high-pressure line into voltage value after measuring it. By
converted voltage value, engine ECU controls the cooling fan by
operating it at high speed or low speed.