Those codes are defo manufacturer specific !!!

NOT all EEC5 cars are OBD2 compatiable.

Just looked in my extensive database and those codes are NON existant.

Even if you managed to read these codes directly from the ECU,
the scan tool is VERY unlikely to display the text meanings for them.

However, EEC4 and 5 are prone to storing fault codes that are GHOST's.
The car will still run correctly even when these are present.

I really do suspect you will eventually go to a Ford dealer to find out the true meaning !!!

Good luck.