LG LMVM2277ST Product Training Manual page 107

Humidity Sensor
The humidity sensor can be tested.
Unplug the three-wire connector to the sensor at the
circuit board end. Set your ohm meter to Rx1000. The
resistance should be as indicated on the table, within
10%.
Infinite resistance or a dead short indicates a sensor
failure.
1 and 3 (Black & red)
2 and 3 (Red & white)
1 and 2 (Black & white)
LMVM2277ST
6 kΩ
3 kΩ
3 kΩ
107
T-31