how to troubleshoot Honda Accord 9th Generation (2013-2017) key fob not working

Honda Accord 10th Generation (2018-2022)

Error Codes

30-60 minutes

Time

medium

Difficulty

medium

Severity

3 min read

523 words

Problem Statement

Learn how to troubleshoot and fix a non-working key fob for Honda Accord 2013-2017. Step-by-step guide with diagnostic steps and solutions.

Affected Component

Electrical

Estimated Time

30-60 minutes

⚠️ Safety Warnings

Important safety information - read before proceeding

•Disconnect the battery before working on electrical components to avoid short circuits.

Symptoms

•Key fob buttons are unresponsive
•Vehicle does not start with the key fob present
•Indicator lights on the dashboard do not illuminate when trying to unlock or lock
•Physical key works but remote functions do not
•Battery warning light may illuminate on the dashboard

Diagnostic Steps

1
Check the battery of the key fob for corrosion or damage.
2
Replace the key fob battery with a new one to see if the issue persists.
3
Attempt to reprogram the key fob according to manufacturer instructions.
4
Inspect the key fob for physical damage or water ingress.
5
Use a spare key fob (if available) to determine if the issue is with the original fob.
6
Scan the vehicle for any error codes related to the keyless entry system using an OBD-II scanner.

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
•OBD-II scanner

Parts Required

•CR2032 battery

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Diagnostic Steps

1
Check the battery of the key fob for corrosion or damage.
2
Replace the key fob battery with a new one to see if the issue persists.
3
Attempt to reprogram the key fob according to manufacturer instructions.
4
Inspect the key fob for physical damage or water ingress.
5
Use a spare key fob (if available) to determine if the issue is with the original fob.
6
Scan the vehicle for any error codes related to the keyless entry system using an OBD-II scanner.

Solution

1. Preparation

Gather necessary tools and parts.
Ensure the vehicle is parked in a safe location.
Disconnect the vehicle battery to prevent electrical issues while working on the fob.

2. Inspect and Replace Key Fob Battery

Tools Required: Small flathead screwdriver, new CR2032 battery.
Open the key fob using a small flathead screwdriver to pry apart the housing carefully.
Remove the old battery from the fob and dispose of it properly.
Insert the new CR2032 battery, ensuring the correct polarity (+/-) is followed.
Snap the key fob back together securely.

3. Reprogram the Key Fob

Tools Required: None.
Sit in the driver’s seat and close all doors.
Insert the key into the ignition and turn to the "On" position (do not start the engine).
Turn the key back to the "Off" position and remove it.
Within 5 seconds, press the "Lock" button on the key fob.
Repeat this process for any additional key fobs you wish to program.
Test the key fob to ensure it is functioning correctly after the programming process.

4. Inspect for Physical Damage

Tools Required: None.
Examine the key fob for any signs of physical damage or wear.
If any cracks or water damage are noted, consider replacing the key fob entirely.