Monitor Description
WARNING: This page is about a different car, the 2019 Toyota Highlander, 2018 Toyota Highlander, and 2017 Toyota Highlander. However, it is still accessible from the selected car via links, so may be relevant.
The ECM calculates the amount of heat absorbed by the clutch discs and brake discs based on the difference in speed (clutch slippage) between the turbine (input) and output shaft. If the amount of heat absorption exceeds the specified value, the ECM will illuminate the MIL and store this DTC.
If the solenoid (SLT) valve is stuck ON, the line pressure and clutch engagement force will decrease.
NOTE:
If driving continues under these conditions, the clutches will burn out and the vehicle will no longer be drivable.