SOLAR RADIATION SENSOR [FULL-AUTO AIR CONDITIONER]
SOLAR RADIATION SENSOR [FULL-AUTO AIR CONDITIONER]
SM2565461
id0740a1004500
Purpose
• The solar radiation sensor detects the sunlight intensity and outputs a signal to the body control module (BCM).
Function
• The solar radiation sensor detects the sunlight intensity using the characteristic of the photodiode (light receiving diode) which flows current when the light strikes the semi-conductor part of the photodiode.
• The solar radiation sensor converts the detected sunlight intensity to an electric signal.
On-board diagnostic function
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• If there is a malfunction in the solar radiation sensor, it outputs an error signal to the body control module (BCM).• The body control module (BCM) outputs a DTC based on an error signal from the solar radiation sensor.• For details on DTCs, refer to the [ON-BOARD DIAGNOSTIC SYSTEM [BODY CONTROL MODULE (BCM)]].
Structure/Construction
• The solar radiation sensor is located on the bracket in the upper center part of the windshield.
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• The solar radiation sensor is integrated with the rain sensor/auto-light sensor.
• The solar radiation sensor has a built-in photodiode (light receiving diode).
Operation
1.The solar radiation sensor detects (1) the sunlight intensity. The current decreases when the sunlight intensity emitted onto the solar radiation sensor is low and increases when the sunlight intensity emitted onto the solar radiation sensor is high.
2.The microcomputer detects (2) the current from the solar radiation sensor and outputs (3) a solar radiation sensor signal to the body control module (BCM).
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