Hyundai Sonata LF Quiz
Heating, Ventilation, and Air Conditioning

Air Conditioning Pressure Sensor Description and Operation

In this manual: Heating, Ventilation, and Air Conditioning
General Information — 9Engine Mechanical System — 90Engine Electrical System — 58Emission Control System — 24Engine Control System/Fuel System — 114Drive Shaft and Axle — 15Suspension System — 35Steering — 19Restraints — 50Brake System — 54Body (Interior and Exterior) — 213Body Electrical System — 241Heating, Ventilation, and Air Conditioning — 56DCT (Dual Clutch Transmission) System — 52
~1min read

Description

The A/C pressure sensor (APT) converts the high-pressure line pressure value into a voltage value after measuring it. Based on the converted voltage value, the ECM controls the cooling fan operating at high or low speed. The ECM stops the compressor operation when the refrigerant line temperature is very high or very low, or irregularly, to optimize the air conditioning system.

Test yourself

A quick Hyundai Sonata LF quiz: every answer comes with an explanation and a link to the manual page.