Originally Posted by John V6
Peter,
not so simple as I understand it. MMC piggy backs their ECU onto the Ford one & then lock them. Without the MMC code you can do nothing.


So what does the MMC ECU actually do? Probably only drives the dash display.

Would it be possible to replace the Ford and MMC ECUs with a new unit?

Peter,
66, 2016 Porsche Boxster S
No longer driving Tarka, the 2014 Plus 8...