Hyundai Sonata: Air Conditioning System / Compressor Description and Operation

Description
The compressor is the power unit of the A/C system.
It is located on the side of engine block and driven by a V-belt of the engine.
The compressor changes low pressure and low temperature refrigerant gas into high pressure and high temperature refrigerant gas.
Variable Swash Plate Compressor
The compressor has a swash plate that rotates to reciprocate pistons, which compress refrigerant.
The variable swash plate compressor controls the swash plate angle to change the refrigerant displacement. It achieves precise cooling capability control in accordance with vehicle interior and driving conditions.
The externally controlled variable swash plate compressor changes the swash plate angle by an ECV (Electric Control Valve) in accordance with an electrical signal from the heater & A/C control unit.
This enables stable temperature control and improved driving sensation.
ECV Control Diagram

Refrigerant Line Repair procedures
Replacement 1. If the compressor is marginally operable, run the engine at idle speed, and let the air conditioning work for a few minutes, then shut the engine off. 2. Disconnect the nega ...

Compressor Components and Components Location
Components Location 1. Comperssor ...

Other information:

Hyundai Sonata LF 2014-2019 Owners Manual: Before Starting
Make sure the hood, the trunk, and the doors are securely closed and locked. Adjust the position of the seat and steering wheel. Adjust the inside and outside rearview mirrors. Verify all the lights work. Fasten your seatbelt. Check that all passengers have fastened their seatbelts. Check the ...

Hyundai Sonata LF 2014-2019 Service Manual: Blind Spot Detection Indicator Repair procedures
Removal Blind Spot Detection Warnig Indicator 1. Disconnect the negative (-) battery terminal. 2. Remove the mirro (A). Installation Blind Spot Detection Warnig Indicator 1. Install the outside mirror. 2. Connect the negative (-) battery terminal. Inspection Diagnosis with GDS ...

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