Kia Carnival (2007 year). Manual — part 176

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 ~ 5V

Fresh

Hazardous gas detection

0 ~ 1V

Recirculation

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