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Home >> Infiniti >> 2007 >> M45 >> Repair and Diagnosis >> Transmission >> Automatic Transmission >> A/T Control System >> Lock up Control >> Notes

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 

LOCK UP OPERATION CONDITION REFERENCE

Selector lever "D" position "M" position
Gear position 5 4 3 5 4
Lock up x - - x x
Slip lock up x x x - -