Check the fuse. Look in your owners manual for the location of the fusebox & a diagram of the fuses. Conversely, if you already know the location of the fusebox, there is usually a diagram in or near it.
In a 1993, my car, the fusebox is located to the left of the steering wheel, about knee high. Snap off cover to check fuse. Be sure to reattach cover as fusebox poses a risk of injury if let unprotected.
The fusebox in a Ford Escort is located right in front of your left knee when you're sitting in the driver seat. Disconnect the battery, then desconnect al connections to the fusebox, install new fusebox and reconnect the fuseconnections. Finally you reconnect the battery and you're good to go.