Torque converter lockup clutch control pressure, function - GF27.60-P-3019AHW

TRANSMISSION 722.9 in MODEL 204.0 as of model year 2009/YoM 08 

TRANSMISSION 722.9 in MODEL 204.0 as of model year 2012/YoM 11 model refinement package 

TRANSMISSION 722.9 in MODEL 204.2 as of model year 2009/YoM 08 

TRANSMISSION 722.9 in MODEL 204.2 as of model year 2012/YoM 11 model refinement package 

TRANSMISSION 722.9 in MODEL 204.3 

TRANSMISSION 722.9 in MODEL 204.9 

Function requirements for torque converter lockup clutch control pressure, general 

• Circuit 87 (connected circuit 15) ON
• Circuit 61 (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, the variable control pressure has to be applied to the torque converter lockup clutch regulating valve.

The torque converter lockup 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 fully integrated transmission control unit (Y3/8n4).