Trunk/Liftgate Actuator

This procedure covers removal and replacement of the trunk/liftgate power lock actuator on a 2018-2024 Honda Accord, restoring proper trunk release and lock functionality.

Warnings

Tools required

Parts

• Trunk lock actuator assembly × 1 — Honda OEM 74851-TVA-A01 or equivalent
• Trim panel retaining clips (if damaged) × 4 — Use OEM specification

Preparation

1. Park vehicle on level surface and engage parking brake
2. Open trunk fully and prop open if necessary
3. Disconnect negative battery terminal and wait 3 minutes to discharge airbag system memory (trunk actuator shares electrical system)
4. Gather all tools and new actuator assembly
5. Inspect new actuator to ensure it matches the original part number and connector configuration

Procedure

1. 1

   Remove trunk interior trim panel
   Using trim panel removal tools, carefully pry out the trunk interior side trim panel on the latch side. Start at the bottom edge and work upward. Remove any visible Phillips screws securing the panel first. There are typically 4-6 push-type retaining clips holding the panel. Pull panel away gently to access the trunk latch area behind.
2. 2

   Access the trunk latch assembly
   Locate the trunk latch mechanism mounted to the trunk lid frame. Use a flashlight to identify the actuator motor attached to the latch assembly. The actuator is a black or gray cylindrical component approximately 3 inches long with a single electrical connector.
3. 3

   Disconnect actuator electrical connector
   Press the locking tab on the actuator electrical connector and pull straight off. Do not pull on the wires themselves. If connector is tight, wiggle gently while pressing the release tab. Note the connector orientation for reinstallation.
4. 4

   Remove actuator mounting bolts
   Remove the two 10mm mounting bolts securing the actuator to the trunk latch assembly. Use a ratchet with extension if needed for access. Support the actuator with one hand while removing the second bolt to prevent it from falling.
5. 5

   Remove old actuator
   Pull the actuator away from the latch mechanism. On some units, there may be a plastic linkage rod connecting the actuator to the latch - carefully disconnect this by pressing the release clip and pulling the rod free. Keep any linkage components for transfer to new actuator if necessary.
6. 6

   Prepare new actuator
   Compare the new actuator to the old unit to verify correct part. If the actuator includes a linkage rod, ensure it is properly installed in the actuator before mounting. Some actuators come pre-assembled while others require linkage transfer from the old unit.
7. 7

   Install new actuator
   Position the new actuator onto the trunk latch assembly, aligning the mounting holes. If equipped with a linkage rod, connect it to the latch mechanism first, then position the actuator. Hand-start both mounting bolts before tightening.
8. 8

   Torque actuator mounting bolts
   Using a torque wrench, tighten the actuator mounting bolts to 8.0 Nm (6.0 lb-ft). Do not overtighten as this can crack the actuator housing or strip the mounting threads in the latch assembly.
   Torque spec

   Module Mounting Bolts8 Nm (6 lb-ft)
9. 9

   Reconnect electrical connector
   Push the electrical connector firmly onto the actuator until you hear or feel a click indicating it is fully seated. Gently tug on the connector body (not wires) to verify it is locked in place.
10. 10

    Reconnect battery and test actuator
    Reconnect the negative battery terminal and torque to 6.0 Nm (4.0 lb-ft). Before reinstalling trim panels, test the trunk release using the key fob, interior button, and exterior trunk release button. Listen for the actuator operating - you should hear a distinct motor sound with each operation. Test both lock and unlock functions multiple times.
    Torque spec

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

    Reinstall trunk trim panel
    Align the trunk interior trim panel with the mounting locations. Press firmly on each clip location until clips snap into place. Reinstall any screws removed during disassembly and torque to 10.0 Nm (8.0 lb-ft) if using a torque screwdriver, or hand-tighten firmly if using a standard screwdriver.
    Torque spec

    Cover Screws10 Nm (8 lb-ft)

Reassembly

1. Ensure all electrical connectors are fully seated and locked
2. Verify trim panel clips are fully engaged and panel sits flush
3. Confirm no tools or parts are left in trunk compartment
4. Check that trunk weatherstripping is not pinched by reinstalled panels

Verification

• Test trunk release from all control points: key fob, driver door button, and trunk release button (if equipped)
• Verify trunk locks when vehicle is locked and unlocks when vehicle is unlocked
• Listen for smooth actuator operation without grinding or binding noises
• Confirm trunk latch engages and releases properly with no sticking
• Test emergency trunk release handle from inside trunk to ensure it still functions
• Reset power windows if necessary by holding window switch up for 2 seconds after window is fully closed

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