A/T Control System: Lock-up Control: Notes
The torque converter clutch piston in the torque converter is engaged to eliminate torque converter slip to increase power transmission efficiency.
The torque converter clutch control valve operation is controlled by the torque converter clutch solenoid valve, which is controlled by a signal from TCM, and the torque converter clutch control valve engages or releases the torque converter clutch piston.
Lock-up Operation Condition Table (QR25DE Models)
LOCK-UP OPERATION CONDITION TABLE
| Select lever | D position | 3 position | 2 position | |
|---|---|---|---|---|
| Gear position | 5 | 4 | 3 | 2 |
| Lock-up | x | - | - | - |
| Slip lock-up | - | - | - | - |
Lock-up Operation Condition Table (VQ40DE Models)
LOCK-UP OPERATION CONDITION TABLE
| Select lever | D position | 3 position | 2 position | |
|---|---|---|---|---|
| Gear position | 5 | 4 | 3 | 2 |
| Lock-up | x | x | - | - |
| Slip lock-up | - | - | x | - |