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 incar fogging. Air conditioner operation depends on ambient temperature and humidity

DTC Description

The ECM sets DTC B1201 if there is a short circuit in humidity sensor signal harness or the measured frequency value of sensor is less than threshold value (about 6,100 Hz)

DTC Detecting Condition





Specification





Schematic Diagram