Kia Carnival (2009+). Instruction — part 548

2009 > G 2.7 DOHC >

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.

Heating,Ventilation, Air Conditioning

Air Conditioning System - Humidity Sensor

Heating,Ventilation, Air Conditioning

2009 > G 2.7 DOHC >

COMPONENT LOCATION

2009 > G 2.7 DOHC >

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.