MS6 ECU Reset???

[Yoichi]

I'm sorry but how do you reset the ECU on the Speed6???

[CX-7owner]

Take off the negative battery terminal, pump the brakes, and put the cable back on.

[whooosh]

I would first ask why?
then I'd tell you to disconnect the negative terminal for a few minutes
if you are trying to erase a code, have it read>diagnose the issue and then fix it