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 Service Manual: Power Seat Motor Repair procedures
Inspection Diagnosis with GDS 1. The body electrocal system can be quickly diagnosed failed parts with vehicle diagnostic system (GDS). The diagnostic system (GDS) provides the following information. (1) Self diagnosis : Checking the failure code (DTC) and display (2) Current data : Chec ...

Hyundai Sonata LF 2014-2019 Service Manual: Front Seat Assembly Repair procedures
Replacement     • When folding the seatback forward in state that headrest and seat is upper and seat is moved forward, be careful not to touch the components such as sunvisor. 1. Remove the front anchor seat belt. (Refer to Restraint - "EFD (Emergency Fastening ...

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