The Only thing you can do is disconnect the battery for ten minutes and this will clear any codes .
Then reconnect the battery and start the engine , if the check engine light is still "ON" then you have hard
codes .If the light goes out then test drive and wait and see if the light comes back on .
If the check engine light is ON when the engine is running and you have no drivability issue you can and may keep driving with no issue what so ever ,"BUT" if the check engine light is flashing then you should have the problem checked and repaired as soon as possible.
Now with the Anti Skid light being on this may be due to a bad wheel speed sensor, that will also trip on the check engine light .
So quick recap, check engine light ON when engine running and have no drivability issue. then keep driving until you are back home .
the only issue you will be having if the engine is running good is that you will not have the Anti skid system .
When you get home then have a second opinion on the problem with the ECU needing replacing .
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Kind regards Greg.