Programmable Parameters
WARNING: This page is about a different car, the 2006 Ford Pickup, 2006 Ford F550 Super Duty, 2006 Ford F450 Super Duty, and 2006 Ford Cab & Chassis. However, it is still accessible from the selected car via links, so may be relevant.
If a module that has been modified using programmable parameters needs to be installed, the PMI procedure maintains the parameters in their altered state if the diagnostic tool is able to communicate with the old module during vehicle ID. Otherwise it may be necessary to use programmable parameters to return the parameters to the altered state.