air conditioning service port

The low side charge port is located in the larger ad tube heading from the firewall to the back of the compressor. The low side service port is on the accumulator in front of the passenger front wheel. The pictures point to the low pressure switch, not the service port.

Here is a guide and a diagram (Below) that will help you get the job done.

https://www.2carpros.com/articles/air-conditioner-how-to-add-freon

and

https://www.2carpros.com/articles/re-charge-an-air-conditioner-system

and

https://www.2carpros.com/articles/how-a-car-air-conditioner-works

Check out the diagrams (Below). Please let us know if you need anything else to get the problem fixed.