Instead of a relay, you should troubleshoot the problem by checking these:
1. Fuses: Check the owner's manual or the fuse box diagram (usually located under the hood or in the passenger compartment) for fuses related to the power seats. Replace any blown fuses.
2. Power Seat Module: This module controls the power seats' functions. A faulty module is a common cause of power seat problems. Locating this module will require consulting a wiring diagram specific to your 2007 Ford Explorer. It's often located under the seat or within the dashboard. Repair or replacement of this module is usually required by a professional.
3. Wiring: Check the wiring harness connecting the power seat switch, motor, and module for any breaks, shorts, or corrosion. This is a more involved process and requires some electrical knowledge.
4. Power Seat Switch: The switch itself could be faulty. Try switching the switch from one seat to the other if possible (if both seats have a problem, this test won't work).
In short, instead of searching for a specific relay, start by checking fuses and then consider the other components listed above. If you're not comfortable working with car electrical systems, it's best to take your Explorer to a qualified mechanic or auto electrician for diagnosis and repair.
