how to fix Honda Accord 10th Generation (2018-2022) trunk not opening from remote

Honda Accord 8th Generation (2008-2012)

Error Codes

1-2 hours

Time

medium

Difficulty

medium

Severity

3 min read

518 words

Problem Statement

Learn how to diagnose and fix the trunk not opening issue in Honda Accord 10th Generation (2018-2022). Step-by-step guide with diagnostic procedures and repair instructions.

Affected Component

Electrical

Estimated Time

1-2 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

•Disconnect the vehicle battery before working on electrical components to prevent shorts.

Symptoms

•Trunk does not respond to the remote key fob button.
•Trunk can still be opened manually from inside the vehicle.
•No sound or indication of the trunk release mechanism activating.
•Check for any warning lights on the dashboard related to the trunk.
•Other remote functions (lock/unlock) are working properly.

Diagnostic Steps

1
Check the battery in the remote key fob to ensure it has sufficient charge.
2
Inspect the trunk release button on the key fob for damage or malfunction.
3
Test the trunk release function from the vehicle interior to confirm it operates correctly.
4
Use an OBD-II scanner to check for any trouble codes that may indicate an electrical issue.
5
Inspect the trunk latch and wiring for any visible damage or disconnection.

Solution

💡 Expert Tip

For complex repairs like this, consider taking photos at each step. This helps if you need to reverse a step or consult with a mechanic. Also, keep all removed parts organized - you may need to reference them during reassembly.

Verification

After completing the repair, verify that the issue has been resolved:

✓Test the affected component to ensure it functions correctly
✓Check for any error codes or warning lights
✓Monitor the vehicle for a few days to ensure the issue does not recur

Prevention Tips

To prevent this issue from occurring again:

•Follow the manufacturer's recommended maintenance schedule
•Address warning signs early before they develop into major issues
•Use quality parts and fluids recommended for your vehicle
•Keep detailed records of all repairs and maintenance

Tools & Equipment Required

•OBD-II scanner
•Multimeter
•Flathead screwdriver

Parts Required

•Key fob battery (CR2032)
•Trunk release relay (if necessary)

Related Faults

Share this solution

Comments

No comments yet

Be the first to share your thoughts

Back to Generation

Symptoms

•Trunk does not respond to the remote key fob button.

•Trunk can still be opened manually from inside the vehicle.

•No sound or indication of the trunk release mechanism activating.

•Check for any warning lights on the dashboard related to the trunk.

•Other remote functions (lock/unlock) are working properly.

Diagnostic Steps

1
Check the battery in the remote key fob to ensure it has sufficient charge.
2
Inspect the trunk release button on the key fob for damage or malfunction.
3
Test the trunk release function from the vehicle interior to confirm it operates correctly.
4
Use an OBD-II scanner to check for any trouble codes that may indicate an electrical issue.
5
Inspect the trunk latch and wiring for any visible damage or disconnection.

Solution

1. Preparation

Gather tools: OBD-II scanner, multimeter, flathead screwdriver, and a replacement key fob battery if needed.
Ensure the vehicle is in a safe and accessible area for service.

2. Replace Key Fob Battery

Sub-steps:
1. Open the key fob using a flathead screwdriver to gently pry apart the two halves.
2. Remove the old battery and replace it with a new one (typically a CR2032 battery).
3. Snap the key fob halves back together securely.
4. Test the remote to see if the trunk opens now.

3. Inspect Trunk Release Mechanism

Sub-steps:
1. Open the trunk manually and locate the trunk latch assembly.
2. Check the wiring harness connected to the latch for any signs of damage or loose connections.
3. Use a multimeter to check for continuity in the wires leading to the trunk latch.
4. If damaged, repair or replace the wiring as necessary.

4. Check Trunk Release Relay

Sub-steps:
1. Locate the fuse box (usually under the dashboard or in the engine compartment).
2. Identify the trunk release relay and remove it.
3. Inspect the relay for any signs of damage and test it using a multimeter.
4. Replace if necessary with a new relay of the same specifications.