Torque Converter: Description and Operation

The torque converter lock-up, as with the shifting speeds, occurs at different speeds depending on which driving mode and gear has been selected and engaged at any particular time. As well as vehicle speed the transmission and outside air temperature and engine load are taken into consideration.

The lock-up function is also controlled by the temperature of the oil in the transmission, and, because of the oil temperature sensor location in the transmission a tolerance of ±10% must be allowed for when using vehicle speeds contained in the tables. (The oil temperature sensor is not located in the hottest part of the transmission).

Lock-up engagement normally occurs only in 4th gear in the D position and in 3rd gear in the 3 position, but lock-up can also be engaged in 3rd and 2nd gear at high transmission oil temperatures. Lock-up is always disengaged if the throttle opening is below 3% regardless of the vehicle speed.

Lock-up engagement and disengagement tables for the three driving modes together with the engine variants. The three alternative driving modes are Economy, Sport and Winter (E, S and W).

NOTE: Tolerance ±10%

Winter "E" Mode (Gear Lever In D)
Throttle Opening = 100% + Kick Down
2 In - km/h
2 Out - km/h
3 In 133 km/h
3 Out 96 km/h
4 In 195 km/h
4 Out 152 km/h
Throttle Opening = 25%
2 In - km/h
2 Out - km/h
3 In 41 km/h
3 Out 36 km/h
4 In 102 km/h
4 Out 60 km/h

Winter "S" Mode (Gear Lever In D)
2 In - km/h
2 Out - km/h
3 In 140 km/h
3 Out 109 km/h
4 In 200 km/h
4 Out 178 km/h
Throttle Opening = 25%
2 In - km/h
2 Out - km/h
3 In 41 km/h
3 Out 36 km/h
4 In 102 km/h
4 Out 62 km/h

Winter "W" Mode (Gear Lever In D)
2 In - km/h
2 Out - km/h
3 In 133 km/h
3 Out 96 km/h
4 In 192 km/h
4 Out 157 km/h
Throttle Opening = 25%
2 In - km/h
2 Out - km/h
3 In 47 km/h
3 Out 40 km/h
4 In 72 km/h
4 Out 57 km/h