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**pjmoreland** · 12-09-2021, 05:11 PM

The code will require a very minor tweak to ignore the 4th gear input to the Arduino. The logic to lock and unlock will be based solely on speed and vacuum then (and the brake switch). Would it be a problem if the TCC locked in 2nd gear and then the transmission upshifted to 3rd with the TCC locked? I don't think this would happen during normal driving since the speed and vacuum logic should prevent it. The transmission would likely already be in 3rd above 50mph and light throttle. I could see it happening if you were shifting through the gears manually at light throttle.

12-09-2021, 05:11 PM	#109
pjmoreland Senior Member Join Date: Jan 2005 Location: CA Posts: 5,347	Re: 700R4 TCC Wiring The code will require a very minor tweak to ignore the 4th gear input to the Arduino. The logic to lock and unlock will be based solely on speed and vacuum then (and the brake switch). Would it be a problem if the TCC locked in 2nd gear and then the transmission upshifted to 3rd with the TCC locked? I don't think this would happen during normal driving since the speed and vacuum logic should prevent it. The transmission would likely already be in 3rd above 50mph and light throttle. I could see it happening if you were shifting through the gears manually at light throttle.