Hyundai Elantra: Air Conditioning System / A/C Pressure Transducer Description and Operation

Description
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.
Receiver-Drier Repair procedures
Replacement 1. Remove the condenser. 2. Remove the cap (A) on the bottom of the condenser with a L wrench. Tightening torque : 9.81 ~ 14.71 N.m (1.0 ~ 1.5 kgf.m, 7.2 ~ 10.8 lb-ft) ...

A/C Pressure Transducer Repair procedures
Inspection 1. Measure the pressure of high pressure line by measuring voltage output between terminal “1” and “2”. 2. Inspect the voltage value whether it is sufficient to be regular v ...

Other information:

Hyundai Elantra AD (2016-2020) Owners Manual: Master, Door Ajar, Trunk Open, Hood Open Warning Lights Light
Master Warning Light This indicator light illuminates • When there is a malfunction in operation in any of the following systems: - Exterior lamp malfunction - Blind-Spot Collision Warning (BCW) malfunction (if equipped) - Lane Keeping Assist (LKA) System malfunction (if equipped) - Tire P ...

Hyundai Elantra AD (2016-2020) Owners Manual: Check Tire Pressure
■ Supervision cluster You can check the tire pressure in the Assist Mode on the cluster. Refer to the "LCD Display Mode" section in chapter 3. A "Drive to display" message will appear for the first few minutes of driving after initial engine start up. If the tire ...

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