Power lock problem

Hi, I'm having problems with the locks in my 95 escort. When you lock or unlock the drivers door, the rest of the doors lock/unlock with it (there is no door lock switch).

But a couple weeks a go the rest of the doors stopped unlocking, I can hear the relay clicking, and they still lock, but I can't get them to unlock. Anyone have any ideas? It sucks, because this prevents me from adding keyless.

The driver door lock motor is actuallt a slave cylinder. A motor must be added in the driver door of  your escort and then to correct your unlocking of the rest of the doors you must replace the slave mechanism or bypass it and connect the rest of the door locks to the relays that you are going to have to add to for you driver door lock motor. The relays must be configured as a 5-wire setup. Call me for more info