The Escapes are known to have an issue with the seat connection on the passenger side. This is the connection which goes to the seat to see if someone is sitting in the seat (if nobody's in the seat, the pass side air bag won't deploy). Under the seat there is a wire which will go down from the seat bottom to about the middle underneath of it. Try to see if pulling this apart and putting it back together has any affect on the bag light. It's the connector itself which has the issue, so inspect the connectors on both sides to see if you can tell an obvious issue. You might also try to jump the two wires from one connector to the other. The "easy" fix (if there is an issue here) is to remove the connector and connect the two wires directly to their mates (from seat to floor, not the two floor or two seat wires together).