Park Engine On: Notes

If the HPCM determines that operating conditions (low state of battery charge, low temperature) are appropriate for the internal combustion engine (ICE) to be ON in Park, the fluid pump is commanded ON and line pressure is directed to the pressure regulator valve and other various components. The following steady-state conditions exist in the transmission's hydraulic electrical systems. Note that the torque damper assembly is commanded ON only during the start sequence and is OFF once the ICE is ON.