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Home >> Toyota >> 2001 >> Sienna CE >> Repair and Diagnosis >> External Pages >> Different car >> Section 477 (Air Conditioning System - Diagnosis) >> Circuit Inspection >> DTC B1424/24 Solar Sensor Circuit (Driver Side) >> Circuit Description

Circuit Description

WARNING: This page is about a different car, the 2003 Lexus LS 430. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: Identifying Strength Of Solar Radiation
G03376749Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

A photo diode in the solar sensor detects solar radiation and sends signals to the A/C ECU.

DETECTION ITEM

DTC No. Detection Item Trouble Area
B1424/24 Open or short in solar sensor circuit.
Please note that display of diagnostic trouble code B1424/24 is not abnormal when the sensor is not receiving solar radiation.
  • Solar sensor.
  • Harness or connector between solar sensor and A/C ECU.
  • A/C ECU.
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