Overdrive Assembly: Description and Operation

CONSTRUCTION
The overdrive cut system can be broadly divided into three sections, the sensors, the ECU and the actuator.

OPERATION
1. O/D Main Switch in ON Position
When the water temperature is 55 °C (131 °F) or below, the O/D solenoid is turned ON and the overdrive is cut.

If the water temperature is 55 °C (131 °F) or more and the following conditions are both fulfilled, the O/D solenoid is turned ON and the overdrive is cut:
- Vehicle speed less than or equal to 125 km/h (78 mph)
- Throttle valve opening angle is 70% or more.