Changing the headlight bulb in a 93 ford escort

the headlight bulb is both high /low beams and has a twist off black retainer that keeps the bulb in (DO NOT TOUCH THIS BULB WITH YOUR FINGERS THE OIL FROM YOUR SKIN WILL FRY ON THE GLASS AND BLOW OUT THE BULB IN AN HOUR OR LESS IF IT DOES HAPPEN CLEAN WITH ALCOHOL AND LET DRY) USE PAPER TOWELS/RUBBER GLOVE OR ANYTHING CLEAN TO HANDLE THE NEW BULB REVERSE REMOVAL PROCEDURE

Instructions

1. Make sure the the headlight switch is in the off position.
   
2. Open the bonnet to the Escort.
   
3. Locate the back side of the headlight assembly to the headlight that needs to be changed (driver's side or passenger side) from inside the front the engine compartment.
4. Unplug the wires from the back of the bulb.
5. Turn the back of the bulb housing counterclockwise one-third of a turn until the bulb and wire harness are released from the headlight assembly.
6. Unplug the wire harness from the bulb socket.
7. If using Halogen headlight replacement and be careful not to touch the glass bulb part. Handle it by the socket at the bottom of the headlight.
8. Plug the wire harness into the new headlight replacement.
9. Align the tabs on the headlight housing to the slots in the headlight assembly and insert the bulb into the assembly. Twist the headlight one-third of a turn clockwise until it locks into place.

Go to this free Ford website to view or download the owners manual for this vehicle.
On page 82 it give the step by step instructions with diagrams on how to replace the headlamp bulbs.

https://www.fleet.ford.com/maintenance/owners_manuals/default.asp

Check relays and wiring for current to them.

The wiring harnesses in the plugs behind the bulbs are burned up seperate rear of headlight cover and inspect parts available at your ford dealer

Under the hood - follow the wires to the back of the headlight assembly. Separate the connector and remove the lock ring around it. Coax the bulb out - it is held in with a rubber ring. Note the position - the new bulb will only go in in the same position. Replace the lock ring and the wire connector.

pop your hood and disconnect the wire that is plugged to the back of the head light. You then can twist the bulb and it should come out. Be careful when installing the new bulb not to touch it with your fingers. The oil in our skin wil cause the new bulb to burn out a few seconds after installation.

did you check your fuese under the hood al so check were your light plug in you may have a broken wire

Bulb should come out of back of headlamp housing. May need to remove battery if bad bulb is on that side.

Pull your lever back if the high beams work that way you need a new high/low beam switch, if they do not you need to replace headlight bulbs.