2007 KIA CARNIVAL Workshop Manual

2007 > 2.7L V6 GASOLINE >
DESCRIPTION
1.The ambient temperature sensor is located at the front of the condenser and detects ambient air temperature. It is
a negative type thermistor; resistance will increase with lower temperature, and decrease with higher temperatures.
2. The sensor output will be used for discharge temperature control, temperature regulation door control, blower
motor level control, mix mode control and in - car humidity control.
If the ambient temperature is below - 3°C (26.2°F), the A/C compressor will be stopped.
The compressor will be operated by manual operating.

2007 > 2.7L V6 GASOLINE >
INSPECTION
1.Ignition "OFF"
2. Disconnect ambient temperature sensor.
3. Check the resistance of ambient temperature sensor between terminals 1 and 2 whether it is changed by changing
of the ambient temperature.
Specification
Ambient temperature [°C(°F)] Resistance between terminals 1and 2 (kΩ)
- 10(14) 164 ± 3%
0 (32) 97.5 ± 3%
10 (50) 59.6 ± 3%
20 (68) 37.5 ± 3%
4.If the measured resistance is not specification, substitute with a known- good ambient temperature sensor and
check for proper operation.
5. If the problem is corrected, replace the ambient temperature sensor.
REPLACEMENT
1.Disconnect the negative ( - ) battery terminal.
2. Remove the front bumper. (Refer to BD group)
3. Remove the ambient temperature sensor (A).
4.Installation is the reverse order of removal.

Air Quality Sensor

2007 > 2.7L V6 GASOLINE >
COMPONENT LOCATION

2007 > 2.7L V6 GASOLINE >
DESCRIPTION
1.A.Q.S is located at center support in front of the engine radiator, and detects hazardous elements in ambient air
providing output signal to control.
2. It will detect sulfurous acid gas, carbon dioxide, carbon monoxide, hydrocarbon and allergen.

2007 > 2.7L V6 GASOLINE >
INSPECTION
1.Ignition "ON"
2. Using the scan tool.
3. Check the output voltage of AQS between terminals 2 and 3.
Specification
Condition Output signal Fresh/recirculation
Normal condition 4 ~ 5VFresh
Hazardous gas detection 0 ~ 1VRecirculation
4.AQS diagnosis and fail safe
Detect the open of signal for 7 seconds without choosing the AQS switch when IG on.
If 2.5V or more is detected for 3.5 seconds or more among 7 seconds, be judged the open of AQS signal.
Operate as below fail safe function, while choosing AQS.
Fail safe: Release the AQS (AQS cannot be selected), Fresh/recirculation maintains previous situation of AQS
selection.
When IG is turned ON, AQS heats for 34±5 seconds, it will output below 1.0 voltage during this time.
REPLACEMENT
1.Disconnect the negative ( - ) battery terminal.
2. Remove the front bumper (Refer to BD group).
3. Remove the AQS (A) after loosening the mounting screws (B).
4.Installation is the reverse order of removal.

Humidity Sensor

2007 > 2.7L V6 GASOLINE >
COMPONENT LOCATION