Monitor Description
The hybrid vehicle control ECU assembly calculates the amount of heat absorbed by the friction material based on the difference in revolution speed (clutch slippage) between the MG2 (motor) and output shaft. The hybrid vehicle control ECU assembly illuminates the MIL and stores this DTC when the amount of heat absorption exceeds the specified value.
When the solenoid (SLT) valve remains ON, oil pressure goes down and clutch engagement force decreases.
NOTE:
If driving continues under these conditions, the clutches will burn out and the vehicle will no longer be drivable.