Hyundai i20 Quiz
Heating, Ventilation and Air Conditioning

A/C PRESSURE SENSOR Description and Operation

In this manual: Heating, Ventilation and Air Conditioning
General Information — 17Engine Mechanical System — 79Engine Electrical System — 50Emission Control System — 22Engine/Fuel Control System — 107Clutch System — 27MANUAL TRANSMISSION SYSTEM — 21Drive Shaft and Axle — 18Suspension System — 29Steering System — 21Restraint — 41Braking System — 53Body Work (Interior and Exterior) — 190Body Electrical System — 181Heating, Ventilation and Air Conditioning — 58
~1min read

Description

The A/C pressure sensor (APT) measures the high-pressure line pressure and converts it into a voltage signal. Based on this signal, the ECM controls the cooling fan, operating it at high or low speed. The ECM stops compressor operation when the refrigerant line temperature is too high or too low, in order to optimize the air conditioning system.

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A quick Hyundai i20 quiz: every answer comes with an explanation and a link to the manual page.