DTC B14A8: Glass Temperature Sensor Circuit; DTC B14A9: Glass Surroundings Temperature Sensor Circuit; DTC B14AA: Glass Humidity Sensor Circuit [02/2019 - 08/2020]: Description

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The rain sensor (glass humidity sensor) is attached to front glass window and used for auto control of the air conditioning system.

The air conditioning amplifier assembly receives signals from the rain sensor (glass humidity sensor) via the CAN/LIN communication line.

DTC No.	Detection Item	DTC Detection Condition	Trouble Area	Memory
B14A8	Glass Temperature Sensor Circuit	Diagnosis condition: Ignition switch ON Malfunction status: Communication between rain sensor (glass humidity sensor) and main body ECU (multiplex network body ECU) is abnormal or stops Detection time: After ignition switch is turned to ON and 10 seconds elapse, continuously for 5 seconds or more	Rain sensor (glass humidity sensor)	Memorized
B14A9	Glass Surroundings Temperature Sensor Circuit	Diagnosis condition: Ignition switch ON Malfunction status: Communication between rain sensor (glass humidity sensor) and main body ECU (multiplex network body ECU) is abnormal or stops Detection time: After ignition switch is turned to ON and 10 seconds elapse, continuously for 5 seconds or more	Rain sensor (glass humidity sensor)	Memorized
B14AA	Glass Humidity Sensor Circuit	Diagnosis condition: Ignition switch ON Malfunction status: Communication between rain sensor (glass humidity sensor) and main body ECU (multiplex network body ECU) is abnormal or stops Detection time: After ignition switch is turned to ON and 10 seconds elapse, continuously for 5 seconds or more	Rain sensor (glass humidity sensor)	Memorized