DTC B1428/28 Rear Solar Sensor Circuit: Description

Fig 1: Rear Solar Sensor Circuit Graph

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The rear solar sensor, which is installed on the package tray trim panel, detects sunlight and controls the air conditioning in AUTO mode. The output current from the rear solar sensor varies according to the amount of sunlight. When the sunlight increases, the output current increases. As the sunlight decreases, the output current decreases. The rear junction block ECU sends the read signal to the air conditioning amplifier via the CAN communication line.

HINT:

This circuit uses the CAN communication line. Before performing the inspection, check that the CAN communication system is functioning normally.