Troubleshooting - Daewoo KORANDO Service Manual

TROUBLESHOOTING

Check and Service
Incar sensor is a sensor that detects interior air temperature
and a thermistor that decreases its resistance when temperature
up and increases when temperature down.
1. Check that there are incar sensor fault code (11,12) by
using self-diagnosis function.
2. Disconnect incar sensor 2-pin connector that installed on
inner lower instrument panel cover of driver's side and
remove the sensor.
3. Check that measured resistance value among incar 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 incar
sensor.
5. Install the sensor and turn the ignition switch to ON position
and check that voltage between No. 12A terminal of incar
sensor and body (-) is 5V.
6. Check current between the No. 12B and 12A connector
terminals of the incar sensor and the No. 1 and 5 connector
terminals of the airconditioner control unit and repair the
wire if defective.
FATC-HAVC 7D-15
12B 12A Incar sensor connector
V
0.5LW
0.5BL
¯
¯
1
5
Airconditioner control unit connector