Torque Converter Lock-Up Clutch Control Pressure, Function - GF27.60-D-3019HAG

TRANSMISSION 722.9 in MODEL 906 

Function requirements for torque converter lockup clutch control pressure, general 

• "Circuit 87 ON"
• "Circuit 61 ON" (engine running)

Torque converter lockup clutch control pressure, general 

The torque converter lockup clutch is operated at specified slip speeds. In order to make this possible, variable control pressure has to 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 via the torque converter lockup clutch control solenoid valve (Y3/8y8) which is actuated by the control unit (Y3/8n4).