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

TRANSMISSION 722.9 in MODEL 216.3 as of model year 2009 / YoM 08 

TRANSMISSION 722.9 in MODEL 216.3 (except 216.374) as of model year 2011 /YoM 10 model refinement package 

TRANSMISSION 722.9 in MODEL 221.0 as of model year 2009 / YoM 08 

TRANSMISSION 722.9 in MODEL 221.0 (except 221.095) 

TRANSMISSION 722.9 in MODEL 221.0 (except 221.074) as of model year 2011 /YoM 10 

TRANSMISSION 722.9 in MODEL 221.1 as of model year 2009 / YoM 08 

TRANSMISSION 722.9 in MODEL 221.1 (except 221.195) 

TRANSMISSION 722.9 in MODEL 221.1 (except 221.174) as of model year 2011 /YoM 10 

Function requirements for torque converter lockup clutch control pressure, general 

• Circuit 87 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 (VGS) (Y3/8y8) which is actuated by the fully integrated transmission control (VGS) control unit (Y3/8n4).

Overview of system components for automatic transmission (AT)

GF27.10-P-9992AHS