DSD Information System
Home >> Toyota >> 2021 >> Highlander LE, 4WD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 91 (Heating / Air Conditioning System (HV) - Diagnostic Codes (2 Of 3)) >> AIR CONDITIONING SYSTEM (for HV Model) >> DTC B14A8: Glass Temperature Sensor Circuit; DTC B14A9: Glass Surroundings Temperature Sensor Circuit; DTC B14AA: Glass Humidity Sensor Circuit [12/2019 - 10/2021] >> Description

DTC B14A8: Glass Temperature Sensor Circuit; DTC B14A9: Glass Surroundings Temperature Sensor Circuit; DTC B14AA: Glass Humidity Sensor Circuit [12/2019 - 10/2021]: Description

WARNING: This page is about a different variant/trim than selected.

The windshield humidity sensor (air conditioning thermistor assembly)*1 or windshield humidity sensor (rain sensor)*2 is attached to the front glass window and used for auto control of the air conditioning system.

The air conditioning amplifier assembly receives signals from the windshield humidity sensor (air conditioning thermistor assembly)*1 or windshield humidity sensor (rain sensor)*2 via the CAN/LIN communication line.

DTC No. Detection Item DTC Detection Condition Trouble Area Memory
B14A8 Glass Temperature Sensor Circuit Open or short in glass temperature sensor circuit
  • Windshield humidity sensor (air conditioning thermistor assembly)*1
  • Windshield humidity sensor (rain sensor)*2
Memorized
B14A9 Glass Surroundings Temperature Sensor Circuit Open or short in glass surroundings temperature sensor circuit
  • Windshield humidity sensor (air conditioning thermistor assembly)*1
  • Windshield humidity sensor (rain sensor)*2
Memorized
B14AA Glass Humidity Sensor Circuit Open or short in windshield humidity sensor (air conditioning thermistor assembly)*1 or windshield humidity sensor (rain sensor)*2 circuit
  • Windshield humidity sensor (air conditioning thermistor assembly)*1
  • Windshield humidity sensor (rain sensor)*2
Memorized

*1: w/o Auto Wiper System

*2: w/ Auto Wiper System