>
Hyundai Equus Manuals

Hyundai Equus: Air Quality Sensor (AQS) Repair procedures - Air Conditioning System - Heating, Ventilation and Air Conditioning - Hyundai Equus VI 2009-2024 Service ManualHyundai Equus: Air Quality Sensor (AQS) Repair procedures

Second generation VI (2009–2024) / Hyundai Equus VI 2009-2024 Service Manual / Heating, Ventilation and Air Conditioning / Air Conditioning System / Air Quality Sensor (AQS) Repair procedures

Inspection
1.
Turn the ignition switch OFF.
2.
Connect the GDS.
3.
Check the output voltage of AQS between terminal 2 and 3.

1. DC 12V( Ignition)
2. Sensor ground
3. AQS signal

Specification
Condtion
 Output Signal (V)
 Intake Control State
Intake Feedback (V)
Preheating
2.5 ± 0.55
maintain previous state
maintain previous state
Below standard inflow of polluted air
4.3 ± 0.55
Fresh air
0.3
Above standard inflow of polluted air
0.9 ± 0.55
Recirculated air
4.7

4.
AQS diagnosis and fail safe
A.
With the ignition switch turned ON, it does not judge whether it has failed or not while the AQS sensor is preheating (35 ± 2 sec.). It is judged after 40 seconds the ignition switch has been turned ON.
B.
At this time, if the AQS output is out of normal range, the AQS is turned off.
C.
But, if the AQS is OPEN/SHORT, the AQS will turn off right after the ignition switch is turned ON regarding it as a malfunction.
Replacement
1.
Disconnect the negative (-) battery terminal.
2.
Remove the front bumper.
(Refer to Body - "Front Bumper Cover")
3.
Disconnect the smart cruise control unit connector (A).
4.
Loosen the bolts and then remove the smart cruise control unit bracket (B).

5.
Disconnect the connector (A) and then remove the AQS (B).
[Smart Cruise Control system]

[Non-Smart Cruise Control system]

6.
Install in the reverse order of removal.
    Air Quality Sensor (AQS) Description and Operation
    Desciption The Air Quality Sensor (AQS) is located at the center support in front of the engine radiator. It detects hazardous elements in ambient air providing output signal to the control. A ...

    Auto Defogging Sensor Description and Operation
    Description The auto defogging sensor is installed on the front window glass. The sensor judges and sends signal if moisture occurs to blow out wind for defogging. The air conditioner control m ...

    See also:

    Front Wiper Motor Components and Components Location
    Components 1. Nut cap2. Nut3. Wiper arm4. Wiper blade5. Cowl top cover braket6. Cowl top cover7. Washer bolt8. Wiper motor & linkage assembly ...

    Height Sensor Schematic Diagrams
    Circuit diagram 1. Height sensor connector 2. Height sensor terminal function TerminalFunction1Height Sensor Ground2-3-4-5Height Sensor Power 6Height Sensor Signal 3. Circuit diagram ...

    Inhibitor Switch Specifications
    Specifications x Type: Combination of output signals from 4 terminals Power supply (V)12Output typeCombination of output signals Signal Code Table PIN No.PP-RRR-NNN-DDS112V12VO ...

    Categories

    Hyundai Equus Manuals


    © 2011-2024 Copyright www.heqmanual.com