What can be repaired:
* Replacing blown fuses: This is the most common "repair" and is simple. Just replace the blown fuse with one of the correct amperage.
* Replacing damaged relays: Relays are small switches controlled by electrical current. If a relay is faulty, it can be replaced.
* Repairing minor wiring issues: Sometimes, a wire might be loose, corroded, or broken within the box. These can sometimes be repaired, but it's often more reliable to replace the affected wiring.
* Cleaning corrosion: Corrosion can interfere with connections. Cleaning the terminals can restore function.
What usually requires replacement:
* Extensive wiring damage: If a significant portion of the wiring harness within the box is damaged (e.g., from a fire, water damage, or rodent chewing), replacing the entire box is usually necessary and safer.
* Internal shorts: If there's a short circuit within the box itself, it's often safer to replace the unit to avoid further damage.
* Cracked or severely damaged box: A physically damaged box might be unsafe and should be replaced.
In short, minor issues with the power distribution box in a 1993 Ford Taurus can often be repaired. However, more extensive damage usually requires replacement of the entire unit for safety and reliability. If you're not experienced with automotive electrical systems, it's best to take it to a qualified mechanic for diagnosis and repair.
