reset engine code
If you have fixed it, take it to an auto parts store like autozone and they will generally read and clear your codes for free.
Asked a local auto parts and they said, "Not sure, have to pump the brake while ignition on" lol That's a Chevy I believe, I have a Ford, lol. Read online to disconnect your negative battery cable for 5 minutes and re- connect. It should clear, but if it comes back on your have an issue, so take it in to be read in order to find out what the issue is.
Search Ford Expedition Questions
Are you a UK consumer? CarGurus now has a discussion forum in the UK.
Ford Expedition Experts