Torque Converter Clutch (TCC) in Drive Mode

WARNING: This page is about a different car, the 2009 Mercury Milan and 2009 Ford Fusion. However, it is still accessible from the selected car via links, so may be relevant.

The Drive Mode allows the technician to turn the TCC off and on.

Drive Mode for TCC OFF operates only when:

OSS and TR sensors are operational.
No OSS and TR sensor DTCs are set.
Engine is ON.
Selector lever is in D.
Vehicle speed is above 32 km/h (20 MPH).

Drive Mode for TCC ON operates ONLY when:

OSS and TR sensors are operational.
No OSS and TR sensor DTCs are set.
Engine is ON.
Selector lever is in D.
Vehicle speed is above 32 km/h (20 MPH).
Transaxle in 2nd gear or higher.
Transmission Fluid Temperature (TFT) is between 16°C-135°C (60°F-275°F).
Brake is not applied below 32 km/h (20 MPH).
Steady vehicle speed is maintained.