https://docs.emtronaustralia.com.au/engine-management/functions/acd-pump-control/index.htmlActive Center Differential (ACD) Hydraulic Pump Control This function reads the pressure from the “Active Center Diff Pressure” input channel and uses this to control the ACD hydraulic pressure. The ECU provides a Pressure Target Table so that different pressures can be targeted under different conditions. This function can be enabled when the Motorsport Differential Control Function is ON AND an Output Channel has been assigned.Hugoen-us