You have what is called a triple pressure sensor. So basically just one sensor on top of the receiver dryer.
I am attaching the info on the sensor and how to test it. Here is a guide that will help with this testing:
https://www.2carpros.com/articles/how-to-check-wiring
Below is the info from the manual. Please let us know what questions you have. Thanks
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Sunday, June 20th, 2021 AT 3:51 PM