KIA CARNIVAL 2007 Workshop Manual

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

2007 > 2.7L V6 GASOLINE >
DESCRIPTION
1.Humidity sensor is located at the lower crush pad and detected in - car humidity for in - car humidity control.
2. If ambient air temperature or in - car humidity is outside certain range, it will turn on A/C to control in - car humidity
preventing in car fogging.
Air conditioner operation depends on ambient temperature and humidity.

2007 > 2.7L V6 GASOLINE >
INSPECTION
1.Ignition "ON"
2. Using the scan tool.
3. Check the frequency of humidity sensor between terminals 2 and 3.
Humidity (%) Frequency between terminals 2and 3 (Hz)
30 6976 ± 5%
50 6728 ± 5%
60 6600 ± 5%
70 6468 ± 5%
80 6330 ± 5%
90 6186 ± 5%
4. If the measured resistance is not specification, substitute with a known- good humidity sensor and check for proper
operation.
5. If the problem is corrected, replace the Humidity sensor.
REPLACEMENT
1.Disconnect the negative ( - ) battery terminal.
2. Remove the center facia lower panel (A). (Refer to BD group)
3. Disconnect the humidity sensor connector (A).
4. Loosen 2 screws and then remove the humidity sensor (B).
5.Installation is the reverse order of removal.

Heater

2007 > 2.7L V6 GASOLINE >
COMPONENT LOCATION
COMPONENTS