GF27.60-P-3019ACM Torque Converter Lockup Clutch Control Pressure, Function

GF27.60-P-3019ACM Torque converter lockup clutch control pressure, function
- TRANSMISSION 722.643/649
- refinement package
- as of model year 09


Function requirements for torque converter lock-up clutch control pressure, general
^ Circuit 87 ON
^ Circuit 61 (engine running)

Torque converter lock-up clutch control pressure, general
Apart from the extreme states of open or closed, it is possible to operate the torque converter lockup clutch with preset slip speeds. In order to make this possible, variable control pressure must be applied to the torque converter lockup clutch regulating valve.

The torque converter lock-up clutch control pressure is adapted to the respective operating condition by the EGS control unit via the torque converter lockup PWM solenoid valve (Y3/6y6) which is actuated by the EGS control unit (N15/3).