2007 KIA CARNIVAL Workshop Manual

2007 > 2.7L V6 GASOLINE >
INSPECTION
1.Ignition "ON"
2. Using the scan tool.
3. Emit intensive light toward photo sensor using a lamp, and check the output voltage change.
4. The voltage will rise with higher intensive light and reduce with lower intensive light.
REPLACEMENT
1.Disconnect the negative ( - ) battery terminal.
2. With the ( - ) driver, remove the photo sensor (B) from the center of defrost nozzle (A).
3.Install in the reverse order of removal.

Water Temperature Sensor

2007 > 2.7L V6 GASOLINE >
COMPONENT LOCATION

2007 > 2.7L V6 GASOLINE >
DESCRIPTION
1.Water temperature sensor is located at the heater unit.
2. It detects coolant temperature. Its signal is used for cold engine lockout control. When the driver operates the
heater before the engine is warmed up, the signal from sensor causes the heater control unit to reduce blower
motor speed until coolant temperature reaches the threshold value.

2007 > 2.7L V6 GASOLINE >
INSPECTION
1.Ignition "ON"
2. Using the multi- tester, Measure resistance between terminal "1" and "2" of water temperature sensor.
Specification
Coolant temperature [°C(°F)] Resistance (kΩ)Voltage (V)
- 10(14) 55.85 ± 3% 4.24 ± 3%
0(32) 32.91 ± 3% 3.83 ± 3%
10(50) 19.99 ± 3% 3.33 ± 3%
20(68) 12.51 ± 3% 2.78 ± 3%
30(86) 8.047 ± 3% 2.23 ± 3%
40(104) 5.311 ± 3% 1.73 ± 3%
50(122) 3.588 ± 3% 1.32 ± 3%
60(140) 2.476 ± 3% 0.99 ± 3%
70(158) 1.742 ±3% 0.74 ± 3%
80(176) 1.246 ± 3% 0.55 ± 3%
3. If the measured resistance is not specification, substitute with a known- good water temperature sensor and check
for proper operation.
4. If the problem is corrected, replace the water temperature sensor.
Negative type thermistor that resistance will rise with lower temperature, and reduce with higher temperature.
REPLACEMENT
1.Disconnect the negative ( - ) battery terminal.
2. Remove the grove box. (Refer to BD group)
3. Disconnect the connector (B) of water temperature sensor and then remove the water temperature sensor(A) by
pulling out.

4.Installation is the reverse order of removal.
Take care that wire of water temperature sensor is not to be damaged

Ambient Sensor

2007 > 2.7L V6 GASOLINE >
COMPONENT LOCATION