I believe you are referring to the turbine shaft speed sensor.
To access it, you will need to remove the driver's side tire and wheel. Once it's off, you will be able to gain access to it.
If you look below, I attached the directions for replacement. Note there is an output speed sensor as well. Let me know if you need anything related to it.
Let me know if this helps.
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Thursday, May 4th, 2023 AT 7:50 PM