DTC B1424/24: Solar Sensor Circuit (Driver Side): Description

Fig 1: Solar Radiation And Resistance Graph

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The solar sensor, which is installed on the upper side of the instrument panel, detects sunlight and controls the air conditioning AUTO mode. The output voltage from the solar sensor varies in accordance with the amount of sunlight. When the sunlight increases, the output voltage increases. As the sunlight decreases, the output voltage decreases. The air conditioning amplifier detects changes in the output voltage from the solar sensor.

DTC No.	DTC Detection Condition	Trouble Area
B1424/24	Open or short in driver side solar sensor circuit	Solar sensor Wire harness between solar sensor and air conditioning amplifier Wire harness between solar sensor and main body ECU Air conditioning amplifier