Questions about what different pins do

what is the difference between the high and low pins on the WAS plug in the PCB

Commercial configurations use differential measurements from the WAS sensor. Where the signal is connected to a high pin and the sensor ground is connected to a low pin. If “Single mode” measurement is used, the signal from the sensor is connected to pin High.

how do I tell what kind of sensor mine is

The connection diagram included with AoG shows it in “single mode”.

I understand that but how do I know what the wheel angle sensor actually is?

In the other topic you mentioned you have a Cadillac sensor, if it only has 3 connections, it’s probably going to work like the diagram shows.

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ok thanks