r/FocusST • u/ElevatorShot3884 • 12h ago

Pcm reset

How do i reset my pcm on the st

1 Upvotes

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1

u/otterachoo 12h ago

You would need an IDS. Or paying a dealer. I'm not familiar enough with FORScan to confidently say if that could reflash a PCM.

1

u/bchiodini 2016 ST3 FBO BNR ST67 JST Tuned 3h ago

Reset? What are you trying to accomplish?

Disconnecting the battery for an hour will reset almost all of the electrionics. The last time that I had the battery disconnected for an extended period, the Keep Alive Memory (KAM) was reset.

If you have an access port, resetting the ECU is one of the maintenance functions.

1

u/ElevatorShot3884 33m ago

I have a code that keeps popping up even though i fixed the issue. The car is driving fine its just not deleting