Line Pressure Control: Notes

WARNING: This page is about a different car, the 2007 Nissan Versa. However, it is still accessible from the selected car via links, so may be relevant.

TCM has various line pressure control characteristics to match the driving conditions.
An ON-OFF duty signal is sent to the line pressure solenoid valve based on TCM characteristics.
Hydraulic pressure on the clutch and brake is electronically controlled through the line pressure solenoid valve to accommodate engine torque. This results in smooth shift operation.