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Home >> Ford >> 2021 >> Explorer ST >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Diagnostic Methods (Except Diesel & Hybrid) >> Flash Electrically Erasable Programmable Read Only Memory (EEPROM) >> Programming The Engine Serial Number For A Replacement Pcm
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Programming The Engine Serial Number For A Replacement Pcm

The engine serial number on a replacement PCM is blank and requires programming. Manual data entry is required. If the old PCM is capable of communicating, the engine serial number is available using a compatible scan tool. Refer to the scan tool manufacturers manual for instructions.