Full Throttle Detent Downshift

At vehicle speeds of 64-88 km/h (40-55 mph) in Fourth gear, quickly increase the TP angle to its maximum position. Verify the following results:
^ The Torque Converter Clutch (TCC) releases.
^ The transmission downshifts to Second gear immediately.
^ The 1-2 and 2-3 Shift Solenoid valves turn Off.