Hyundai Santa Fe: Air conditioning System / A/C Pressure Transducer. Description and operation
The A/C Pressure Transducer (APT) converts the pressure value of high pressure
line into voltage value after measuring it. By converted voltage value, engine
ECU controls the cooling fan by operating it high speed or low speed. Engine
ECU stops the operation of the compressor when the temperature of refrigerant
line is very high or very low irregularly to optimize air conditioning system.

Replacement
1.
Using a Lwrench, remove the cap (A) on the bottom of the receiver-drier.
2...
Inspection
•
Before measuring the pressure of the refriferant line, check
whether the refrigerant amount is charged in accordance with
the specified charging amount...
Other information:
The aspect ratio is lower than 50 on low aspect ratio tires.
Because low aspect ratio tires are optimized for handling and braking, their
sidewall is a little stiffer than a standard tire. Also low aspect ratio tires tend
to be wider and consequently have a greater contact patch with the road surface...
The trip computer is a microcomputercontrolled driver information system that
displays information related to driving.
Information
Some driving information stored in the trip computer (for example Average
Vehicle Speed) resets if the battery is disconnected...
Categories
Electric Power Steering (EPS) warning light
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This warning light illuminates:
When you set the ignition switch or the Engine Start/Stop button to
the ON position.
- The electric power steering warning light illuminates for about 3 seconds
and then goes off.
Whenever there is a malfunction with the electric power steering.
If this occurs, have the vehicle inspected by an authorized HYUNDAI dealer.
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