Module Programming

Module reprogramming (also referred to as "flashing") is a scan tool process which updates the strategy/calibration in a module. During module programming, the diagnostic scan tool will read the current software levels within the module and compare this information with the diagnostic scan tool database. If there is an update, it will be displayed on the screen.

Limit module reprogramming to circumstances where a published FSA, TSB or SSM procedure recommends doing so.

A module cannot communicate with other modules on the communication network while being reprogrammed. After the reprogramming process, clear any network communication Diagnostic Trouble Codes (DTCs) which may have been set in other modules.

Some modules are reprogrammed in coordination with other modules. Follow the key cycling instructions carefully to avoid reprogramming errors, including failure of programming one or more of the modules.