2004 Ford Focus door locks

the lock mechanism has failed ,they often go on the focus but it could be the wires have failed in the door to the door frame .difficult to say the least you may have to visit the scrapyard for a door trim .

If the key and fob operate the other doors OK, then there is a fault in the driver's door lock. Does the lock operate OK with the interior lock button?

remove the door panel, and check the problem

This is the key security system. Somehow youv'e set it off. Used the wrong key tried to open the door with the alarm on. Opened the door or trunk from the inside after locking it from the outside. If your the real owner of the car it'll be no problem to get it fixed. If you have the correct key lock the doors from the outside with the key and lock it twice ( the doors ( all of them ) should lock). Leave the car alone for a minute, maybe 5. Then unlock the door twice, all the doors should unlock the second time. Enter the car and start it with the key. If you with a remote door lock fob that can work too. If this fails then try a different door or even the trunk. Sometimes the driver doorlock switch wears out or gets ice in it and unlocking a different door or useing the remote can get you going again.

It's unlikely you can rectify this problem by playing around with the CL system so you will need to take it to the dealer or auto electrician to fix.
In any event you should be able to manually lock all passenger doors on the vehicle from inside the car and the drivers door from outside with the key.

Before you take the car to the auto shop to fix the CL system try this if you have not already.

1. Manually lock - then manually unlock - all doors (except the driver's door) from inside the car and make sure they are fully shut.

2. Then manually lock all doors a 2nd time except the driver's door.

3. Hit the lock button on your car key pad to activate the central locking system. This should lock the drivers door but with the fault it probably won't. Wait a few seconds then hit unlock on your key pad. Wait again and then hit lock once more. If it will not lock all doors you know what to do next.

First thing first-change battery in fob-most jewelers can do this as well as dealers-takes more power to unlock than lock

go on ebay to by the key and then get it cut at like target or walmart...

once you get the new key...

1-insert and remove key from ignition two times

2-close and open driver door two times

3-insert and remove key once from ign.

4-close and open drvr door twice

5-insert key into ign.,then close driver door

6-turn key to on (not start) then off, twice this is rewrite mode

7-remove key from ignition,the door locks should cycle twice.if not start over.it may take a few tries.

8-press lock/unlock together and hold for a second

9-release,and press lock on remote,the door locks will cycle confirming program.continue to do other remotes you have,steps 8 and 9.if only one in possession,you are done. To end mode open door or insert key into ignition.

You'll need to follow the steps with no more than a 1-2 second delay between each step.. hope it works

you need to remove the door panel and inspect the lock/latch mechanism, maybe a rod problem

Using a multimeter, check for voltage at the lock/unlock solenoid. Disconnect the connector and probe the unlock side with the other lead on a good ground. Hit the unlock twice and see if you get voltage. If yes, the solenoid may be defective or if not, you could possibly have a bad relay. Even though you can hear the relay, that doesn't necessarily mean it's completing the circuit. My car did the same thing and I ended up replacing the relay.
The lock side check would be the same.

Hope this helps!

Get in passenger side and unlock drivers side manually, this will unlock the 4 doors.