Daewoo KORANDO Service Manual page 1301

Water Sensor
Water sensor is a thermistor that detects engine coolant
temperature to operate the blower speed to LO when water
temperature is less than 50.
1. Check that there are water sensor fault code (15,16) by
using self-diagnosis function.
2. Disconnect water sensor 2-pin connector that installed on
the heater unit of inner instrument panel and remove the
water sensor.
3. Check that measured resistance value among water sensor
terminals is as shown in the right side graph.
Notice
Measure resistance value by soaking the sensor in the ice
water and check changes in resistance values after soaking
it in the very hot water.
4. If resistance value is out of specification, replace the water
sensor.
5. Install the sensor and turn the ignition switch to ON position
and check that voltage between No. 7a terminal of the water
sensor and body (-) is 5V.
6. Check current between the No. 7a and 7b connector
terminals of the water sensor and the No. 3 and 5 connector
terminals of the airconditioner control unit and repair the
wire if defective.
FATC-HAVC 7D-17
Water sensor connector 7b
0.5RB
0.5BL
¯
¯
3
5
Airconditioner control unit connector
7a
V