Operation CHARM: Car repair manuals for everyone.

General Information





Component Location





General Description

Humidity sensor located at heater control unit detects in-car humidity for in-car humidity control. If ambient air temperature or in-car humidity is outside certain range, it will turn on A/C to control in-car humidity for preventing in-car fogging. Air conditioner operation depends on ambient temperature and humidity

DTC Description

The ECM sets DTC B1200 if there is an open circuit in humidity sensor signal harness or the measured frequency value of sensor is more than threshold value (about 6,950 Hz)

DTC Detecting Condition





Specification





Schematic Diagram