how to fix Honda Accord 9th Generation (2013-2017) that won’t unlock with remote

Honda Accord Eleventh Generation (2023-present)

Error Codes

30 minutes to 1 hour

Time

medium

Difficulty

medium

Severity

3 min read

463 words

Problem Statement

Learn how to diagnose and fix the key fob not unlocking issue in Honda Accord 9th Generation (2013-2017). Step-by-step guide with tools and tips.

Affected Component

Electrical

Estimated Time

30 minutes to 1 hour

⚠️ Safety Warnings

Important safety information - read before proceeding

•Ensure the vehicle is turned off before working on the key fob.
•Handle batteries with care to avoid accidental short circuits.

Symptoms

•Remote key fob not responding when buttons are pressed
•Central locking system not activating
•Warning light on the dashboard indicating a key fob issue
•Manual unlocking of doors is still functional
•Battery in the key fob is not visibly damaged or leaking

Diagnostic Steps

1
Check the battery in the key fob for proper voltage using a multimeter.
2
Inspect the key fob for physical damage or signs of wear.
3
Verify that the vehicle's central locking system is working by testing manual door locks.
4
Attempt to reprogram the key fob by following the manufacturer’s instructions.
5
Scan the vehicle’s onboard diagnostics for any error codes related to the central locking system.

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

•Small flathead screwdriver
•Multimeter

Parts Required

•Replacement key fob battery (CR2032)

Related Faults

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Diagnostic Steps

1
Check the battery in the key fob for proper voltage using a multimeter.
2
Inspect the key fob for physical damage or signs of wear.
3
Verify that the vehicle's central locking system is working by testing manual door locks.
4
Attempt to reprogram the key fob by following the manufacturer’s instructions.
5
Scan the vehicle’s onboard diagnostics for any error codes related to the central locking system.

Solution

1. Preparation

Gather necessary tools: a small flathead screwdriver, multimeter, and replacement battery (if needed).
Ensure the vehicle is in a safe location and that you have access to the key fob.

2. Check and Replace Key Fob Battery

Sub-step 1: Use the small flathead screwdriver to gently pry open the key fob casing.
Sub-step 2: Remove the old battery and take note of its orientation (positive side up).
Sub-step 3: Insert a new battery of the same type (usually CR2032) in the correct orientation.
Sub-step 4: Snap the key fob casing back together securely.

3. Reprogram Key Fob (if necessary)

Sub-step 1: Sit in the vehicle with all doors closed.
Sub-step 2: Insert the key into the ignition and turn it to the "ON" position without starting the engine.
Sub-step 3: Press and hold the "Lock" button on the key fob for about 5 seconds.
Sub-step 4: Turn the key to the "OFF" position and remove it from the ignition.
Sub-step 5: Test the key fob by pressing the unlock button.