Torque Converter Clutch Pulse Width-Modulated Solenoid
Torque Converter Clutch (TCC) Pulse Width-Modulated (PWM) solenoid is used to control fluid acting on converter clutch valve, which then controls TCC apply and release. (Scheme 72) TCC PWM solenoid is used to provide smooth engagement of torque converter clutch by operating with a duty cycle on-time of less than 50 percent.
| Gear Range | Solenoid Position | |
|---|---|---|
| "D" (Drive) | ||
| 1st Gear | 1-2 ON/2-3 ON | |
| 2nd Gear | 1-2 OFF/2-3 ON | |
| 3rd Gear | 1-2 OFF/2-3 OFF | |
| Overdrive | 1-2 ON/2-3 OFF | |
| "3" (3rd) | ||
| 3rd Gear | 1-2 OFF/2-3 OFF | |
| 2nd Gear | 1-2 OFF/2-3 ON | |
| 1st Gear | 1-2 ON/2-3 ON | |
| "2" (2nd) | ||
| 2nd Gear | 1-2 OFF/2-3 ON | |
| 1st Gear | 1-2 ON/2-3 ON | |
| "1" (Low) | ||
| 1st Gear | 1-2 ON/2-3 ON | |
| "R"(Reverse) | 1-2 ON/2-3 ON | |
| "N" Or "P" (Neutral Or Park) | 1-2 ON/2-3 ON | |
SHIFT SOLENOID OPERATION
