wait to start light lamp diagnoses can be found in the provided link above in post #8.
direct link:
https://www.ford-trucks.com/forums/1...l#post12967785

yes.there are other indicators there as well.this is where the fuel filter (plugged/restricted filter) and water in fuel lights (self explanatory) are located too.
you can remove the bezel and make sure the plug is firmly inserted there.once you remove the bezel,you can't miss it.