Module Reprogramming
WARNING: This page is about a different car, the 2007 Ford Ranger. However, it is still accessible from the selected car via links, so may be relevant.
Module reprogramming (also referred to as "flashing") is a scan tool process which updates the strategy/calibration in a module. Module reprogramming is automatically carried out during PMI when a later strategy/calibration is available.
Reprogramming a module with the same level of software will not improve module operation or repair a hardware failure.
NOTE:
Module reprogramming should be limited to circumstances where a published Technical Service Bulletin (TSB) procedure recommends doing so.
NOTE:
A module cannot communicate with other modules on the communication network while being reprogrammed. Clear any network communication DTCs which may have been set in other modules during reprogramming.