Hyundai Genesis: Air Conditioning System / Ambient Temperature Sensor Description and Operation
The ambient temperature sensor is located inside the side
mirror and detects ambient air temperature. It is a negative type
thermistor; resistance will increase with lower temperature, and
decrease with higher temperature.
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 1.0°C (33.8°F), the A/C compressor will stop operating.
The compressor will operate manually.
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Inspection
1.
Turn the ignition switch ON.
2.
Connect the GDS.
3.
Emit intensive light toward the photo sensor using a lamp, and check the output voltage change.
4.
The voltage will ri ...
Inspection
1.
Check the resistance of the ambient temperature sensor
between terminals 1 and 2 whether it changes by changing the ambient
temperature.
1. Ambient Sensor (+)2. Sensor ground
...
Other information:
Inspection
1.
Turn the ignition switch OFF.
2.
Disconnect the mode control actuator connector.
3.
Verify that the mode control actuator operates to the defrost mode when connecting 12V to terminal 3 and grounding terminal 4.
Verify that the mode control actuator operates to the vent mod ...
Removal
1.
Release the residual pressure in fuel line.
(Refer to Fuel Delivery System -"Release Residual Pressure in Fuel Line")
•
When removing the fuel pump relay, a Diagnostic Trouble Code
(DTC) may turn up. Delete the code with the GDS after completion of
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