Door Lock Actuator - Rear

This procedure covers removal and replacement of the rear door lock actuator on a 2015-2020 Ford F-150, including door panel removal and electrical reconnection.

Warnings

Tools required

Parts

• Rear door lock actuator × 1 — Use OEM Ford specification for 2015-2020 F-150
• Door panel clips (assorted) × 1 — Replacement for any broken clips

Preparation

1. Park vehicle on level surface and engage parking brake
2. Disconnect negative battery terminal and wait 2 minutes for airbag system to discharge
3. Open rear door fully and support if necessary
4. Lower rear window completely if power windows are functional
5. Identify which rear door requires actuator replacement (driver or passenger side)

Procedure

1. 1

   Remove door panel fasteners
   Remove the T30 Torx screw from the door pull handle recess. Remove the door panel mounting screws from the bottom edge of the door panel. On models with power windows, carefully pry the switch panel from the armrest using a trim tool and disconnect the electrical connector by pressing the release tab.
2. 2

   Remove door panel
   Starting at the bottom rear corner, use trim panel removal tools to carefully release the retaining clips around the perimeter of the door panel. Work your way around the panel, supporting it as clips release. Once all clips are free, lift the panel upward to disengage it from the window sill, then pull away from the door frame. Set aside on a protected surface.
3. 3

   Remove water barrier
   Carefully peel back the plastic water barrier sheet to access the door latch mechanism area. Only remove enough of the barrier to access the lock actuator - typically the lower rear section. Take care not to tear the barrier; if adhesive is compromised, prepare to reinstall with new adhesive or tape.
4. 4

   Locate and access lock actuator
   Use a flashlight to locate the lock actuator assembly mounted to the rear door latch mechanism in the lower rear corner of the door. Identify the electrical connector and the actuator mounting fasteners. The actuator is typically secured with two or three bolts or screws.
5. 5

   Disconnect actuator electrical connector
   Press the locking tab on the actuator electrical connector and carefully pull the connector straight off the actuator. If connector is difficult to access, use needle-nose pliers to reach the release tab. Inspect connector terminals for corrosion; clean with electrical contact cleaner if necessary.
6. 6

   Disconnect lock rods
   Identify the lock rod connections to the actuator. These are typically white or black plastic clips. Using needle-nose pliers, rotate the rod end while pulling gently to release it from the actuator arm. Note the orientation and routing of each rod for reinstallation. There may be 1-2 rods depending on configuration (lock cylinder rod and/or interior lock knob rod).
7. 7

   Remove actuator mounting fasteners
   Remove the actuator mounting screws or bolts using a 10mm socket or appropriate tool. Support the actuator as you remove the final fastener to prevent it from falling into the door cavity. Remove the actuator from the door, maneuvering it carefully past any obstructions.
8. 8

   Install new actuator
   Position the new actuator in the mounting location, aligning the mounting holes with the door latch assembly. Install and hand-tighten the mounting fasteners, then torque to specification if using fasteners that match the database. Ensure the actuator is firmly seated and does not have excessive play.
9. 9

   Reconnect lock rods
   Reconnect the lock rods to the new actuator arms in the same configuration as removed. Push each rod end onto the actuator arm and rotate until it clicks into the retaining clip. Verify each connection is secure by gently tugging on the rod. Manually operate the lock mechanism to confirm smooth movement without binding.
10. 10

    Reconnect electrical connector and test
    Push the electrical connector onto the new actuator until it clicks into place. Reconnect the battery negative terminal temporarily. Test the lock actuator function using the key fob, door switch, and interior lock button to verify proper operation in both lock and unlock directions. If equipped with power door locks linked to vehicle security, ensure no fault codes are present. Disconnect battery again for panel reinstallation.
11. 11

    Reinstall water barrier
    Press the water barrier sheet back into position, ensuring all edges are properly sealed to the door frame. If adhesive has lost effectiveness, use weatherproof tape or new adhesive to create a complete seal. The barrier must prevent moisture from reaching door panel components.
12. 12

    Reinstall door panel
    Reconnect the power window switch connector if applicable. Position the door panel above the window sill and lower it into place, engaging the top edge first. Align all mounting clip locations and press firmly around the perimeter until all clips snap into place. Reinstall all screws and fasteners, ensuring proper torque on T30 screws but avoiding overtightening plastic components.

Reassembly

1. Verify all door panel clips are fully seated and panel is flush with door frame
2. Reconnect battery negative terminal and torque to 6.0 Nm (4.0 lb-ft)
3. Reset power windows by lowering window fully, then raising fully and holding switch for 2 seconds
4. If door ajar warning light is illuminated, cycle door open and closed several times

Verification

• Test door lock operation from key fob - verify both lock and unlock functions work smoothly
• Test door lock using interior lock button on all doors to confirm proper communication
• Test door lock using driver door master lock switch
• Verify door latch engages and releases properly when opening and closing door
• Check that interior courtesy lights respond correctly to door position
• Confirm no rattles or loose components in door panel during operation
• Verify all door panel features (window switches, handles, storage) function normally

Related trouble codes on this vehicle

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