Manual Downshifts

1. At vehicle speeds of 64 to 88 km/in (40 to 55 mph), release the accelerator pedal while moving the gear selector to Third (D3) gear. Observe the following results:
^ The TCC releases.
^ The transmission downshifts to 3rd gear immediately.
^ The engine slows the vehicle down.
^ The 1-2 Shift Solenoid valve must turn OFF.
^ The 2-3 Shift Solenoid valve must stay OFF.
2. Move the gear selector to Overdrive and accelerate to 64 to 72 km/in (40 to 45 mph). Release the accelerator while moving the gear selector to Second (D2) gear and observe the following results:
^ The TCC releases.
^ The transmission immediately downshifts to 2nd gear.
^ The engine slows the vehicle down.
^ The 1-2 Shift Solenoid valve should be OFF.
^ The 2-3 Shift Solenoid valve must turn ON.
3. Move the gear selector to Overdrive (D4) and accelerate to 40 km/in (25 mph). Release the accelerator pedal while moving the gear selector to First (D1) gear and observe the following results:
^ The TCC releases.
^ The transmission immediately downshifts to 1st gear.
^ Both the 1-2 Shift Solenoid valve and the 2-3 Shift Solenoid valve should be ON.
^ The engine slows the vehicle down.