Fixing Tailgate Problems on a 2020 Ford Explorer

Tools Required

• OBD-II Scanner
• Multimeter
• Screwdrivers (Phillips and flathead)
• Socket set (10mm and 13mm)
• Torque wrench
• Trim removal tools
• Safety glasses and gloves

Repair Instructions

Step 1: Battery Check and Replacement

1. Turn off the vehicle and open the hood.
2. Use the multimeter to check the battery voltage.
3. If the battery voltage is below 12.4V, jump-start or replace the battery.
4. Recheck the tailgate functionality after battery replacement.

Step 2: Inspect and Repair Wiring

1. Remove the plastic trim covering the tailgate area using trim removal tools.
2. Inspect the wiring harness for any visible damage or disconnections.
3. If damage is noted, repair the wires using solder or electrical tape.
4. Ensure all connections are secure before reassembling the trim.

Step 3: Check the Tailgate Actuator

1. Remove the tailgate panel using a screwdriver and socket set.
2. Locate the tailgate actuator and check for any signs of wear or damage.
3. Test the actuator by applying direct voltage (12V) from a battery to see if it operates.
4. If faulty, replace the actuator:
   • Disconnect the wiring harness from the actuator.
   • Remove the actuator using the socket set.
   • Install the new actuator and reconnect the wiring harness.

Step 4: Test the Tailgate Motor

1. Check if the tailgate motor is functioning by operating it.
2. If it makes no sound or does not operate, it may need replacement.
3. Disconnect the motor and supply direct power to test it.
4. If faulty, replace the motor:
   • Remove any brackets holding the motor.
   • Install the new motor and reconnect all wiring.

Step 5: Reassemble and Test

1. Reattach the tailgate panel securely using screws.
2. Reinstall the plastic trim and ensure all clips are secure.
3. Test the tailgate with the remote and the interior button to ensure it operates correctly.
4. Clear any DTCs from the OBD-II scanner and verify no new codes appear.

Conclusion

If the tailgate still does not function correctly after following these steps, consider consulting a professional technician for further diagnostics. The issue could lie within the vehicle's Body Control Module (BCM) or other electronic components that may require specialized equipment to diagnose and repair.