This procedure covers removal and replacement of the trunk/liftgate lock actuator on 2014-2019 Toyota Corolla sedan models, restoring proper remote and interior trunk release functionality.

Warnings

Tools required

Parts

• Trunk lock actuator assembly × 1 — Toyota OEM 64650-02090 or equivalent
• Interior trunk trim panel clips (if damaged) × 4 — Toyota OEM 90467-09139 or equivalent

Preparation

1. Park vehicle on level surface and engage parking brake
2. Turn off ignition and remove key/fob from vehicle
3. Open hood and disconnect negative battery terminal to prevent electrical shorts
4. Wait 2 minutes after battery disconnect for system capacitors to discharge
5. Open trunk using manual release lever inside cabin (pull lever near driver's seat) since actuator may be inoperative

Procedure

1. 1

   Remove trunk interior trim panel
   From inside the trunk, locate the interior trim panel covering the trunk latch area (center panel behind license plate). Use flat-blade trim tool to carefully pry out the retaining clips starting from the bottom edge. There are typically 6-8 push-type clips securing this panel. Work slowly to avoid breaking clips. Once clips are released, lift panel away to expose trunk latch assembly and wiring.
2. 2

   Disconnect actuator electrical connector
   Locate the electrical connector attached to the trunk lock actuator (black connector with 4-6 wires, typically white or gray housing). Press the locking tab on the connector and pull straight out to disconnect. Do not pull on wires. Note connector orientation for reinstallation.
3. 3

   Remove actuator mounting bolts
   Identify the two mounting bolts securing the actuator assembly to the trunk latch mechanism. These are typically 10mm hex head bolts. Using a 10mm socket, remove both mounting bolts completely and set aside. Support the actuator as you remove the second bolt to prevent it from falling.
   Torque spec

   Module Mounting Bolts8 Nm (6 lb-ft)
4. 4

   Disconnect actuator rod linkage
   The actuator connects to the trunk latch via a plastic rod or cable linkage. Locate the connection point (typically a plastic ball-socket joint or clip). If ball-socket type, use flat-blade screwdriver to carefully pry the rod end off the ball stud. If clip type, squeeze release tabs and pull rod free. Note orientation and position for reassembly.
5. 5

   Remove old actuator
   With mounting bolts removed and linkage disconnected, carefully maneuver the actuator assembly out through the access opening in the trunk structure. You may need to rotate or angle the actuator to clear surrounding components. Inspect the old actuator for signs of physical damage, corrosion, or broken gears.
6. 6

   Prepare new actuator
   Remove new actuator from packaging and verify it matches the old unit in physical dimensions and connector type. Check that the actuator is in the correct position (unlocked position) before installation. If the actuator has a protective shipping lock or pin, remove it according to manufacturer instructions.
7. 7

   Install new actuator
   Position the new actuator in the trunk latch area, angling it through the access opening in the same orientation as removal. Align the mounting holes with the threaded bosses on the trunk latch assembly. Hand-thread both mounting bolts to prevent cross-threading before tightening.
   Torque spec

   Module Mounting Bolts8 Nm (6 lb-ft)
8. 8

   Reconnect actuator linkage
   Attach the actuator rod or cable to the trunk latch mechanism. If ball-socket type, press the rod end firmly onto the ball stud until it clicks into place and cannot be pulled off easily. If clip type, insert rod until retaining tabs engage. Verify connection is secure by gently tugging on linkage.
9. 9

   Connect electrical connector
   Plug the electrical connector into the new actuator, ensuring proper orientation. Press connector firmly until the locking tab clicks into place. Gently tug on connector to verify it is fully seated and locked.
10. 10

    Reconnect battery and perform initial test
    Return to engine bay and reconnect negative battery terminal. Ensure terminal is clean and makes solid contact with battery post before tightening. Do not start engine yet. Turn ignition to ON position (without starting) and use key fob trunk release button to test actuator operation. You should hear actuator motor and see trunk latch release. If no operation, recheck electrical connector and verify battery connection.
    Torque spec

    Battery Terminal Bolts6 Nm (4 lb-ft)
11. 11

    Reinstall trunk interior trim panel
    Position the interior trim panel back into place, aligning all mounting clip holes with their receptacles in the trunk structure. Starting at the top, press firmly on each clip location until you hear/feel each clip snap into place. Work around the perimeter ensuring all clips are fully engaged. Panel should be flush with no gaps.

Reassembly

1. Ensure all trim panel clips are fully seated and panel is secure with no rattles
2. Verify no tools or parts were left in trunk latch area before closing trunk
3. Check that trunk weatherstrip is properly seated around trunk opening

Verification

• Test trunk release using key fob remote - trunk should unlatch smoothly
• Test trunk release using interior cabin release lever - verify proper operation
• If equipped, test trunk release button on trunk lid itself
• Close trunk and verify it latches securely - trunk should not pop open or rattle
• Lock and unlock vehicle doors to confirm trunk lock actuator responds to central locking commands
• Verify trunk light functions when trunk is opened (confirms proper electrical connections)
• Test from both driver and passenger key fobs if vehicle has multiple remotes

More procedures for this vehicle