Originally Posted by
blindsquirrel
Nope, you just ask dumb questions. What I mean by dumb questions is, like your other thread. About where to adjust what TPS to make a downshift. It doesn't work like that and to go back from first principles and explain how the shift scheduling tables work, like doing the Socratic method, takes too damn long and most people here to help figure you probably wouldn't get it anyway. "But I don't care about any of that garbage, why can't you just tell me how to make the TPS do it?" - and then use the excuse nobody wants to help unless they're getting paid.
It does use the TPS, in both the Part Throttle tables and the WOT tables (the WOT table just assumes it's always 100% throttle - because it's WOT). TPS is one of the parameters used to decide a downshift, not THE parameter. It says so right in the table name/description - "Shift Speed vs. TPS vs. Shift". AND, in that thread you didn't even go to the trouble of telling the people you're asking for help what the hell you are working on.
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As far as the Normal/Pattern A/Pattern X thing, it depends. Normal is, well, normal, when the driver hasn't selected any special modes - if there are any on the vehicle in question. Pattern A is sometimes Tow/Haul, other times it's Sport. Depends on the vehicle - trucks usually don't have a Sport mode, and Corvettes don't have Tow/Haul. It's not explained anywhere that I'm aware of with a little chart, either in HPT or in the service manual. You just have to figure it out. There are PIDs you can log in the scanner.