Where is the freon connect port on the engine of a 96 Toyota Avalon?

On a 1996 Toyota Avalon, the freon connect port, commonly known as the refrigerant service port, is located on the air conditioning system. The low-pressure service port is typically found on the larger diameter aluminum line, which runs from the compressor to the evaporator. The high-pressure service port is on the smaller line, usually closer to the compressor. Always ensure the engine is off and the system is not under pressure before attempting any service.