I like how you worded everything. It looks like you know what you are talking about. I only have one issue with all you posted and that is calling the APPS the same thing as a TPS. On a lot of cars the TPS is mounted on or to the throttle body and tells the computer how far the throttle blade is open. This was a lot more common back when the throttle was still cable driven and the computer didn't have any other input. For example, my brothers Ram has a cable controlling the tb and a TPS while my Ram (one year newer) is drive by wire and has a APPS. I have the FSM for both and mine specifically talks about how it does not have a TPS.
I wonder if the domestics and imports differ in this???
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