how to fix my Ford Explorer Fifth Generation (2011-2019) when the key fob won't work

Ford Explorer Fifth Generation (2011-2019)

Error Codes

30 minutes to 1 hour

Time

medium

Difficulty

medium

Severity

3 min read

591 words

Problem Statement

Learn how to fix a non-functioning key fob for Ford Explorer (2011-2019). Step-by-step guide with diagnostic steps and repair instructions.

Affected Component

Electrical

Estimated Time

30 minutes to 1 hour

⚠️ Safety Warnings

Important safety information - read before proceeding

•Ensure the vehicle is in 'Park' and the ignition is off before performing any work involving the key fob.

Symptoms

•Key fob buttons do not respond when pressed
•Vehicle does not respond to remote unlocking or locking
•Indicator light on the key fob does not illuminate
•No sound when attempting to lock or unlock the vehicle
•Manual key insertion works but remote features are inactive

Diagnostic Steps

1
Check the battery condition of the key fob using a multimeter.
2
Replace the key fob battery and test its function.
3
Attempt reprogramming the key fob to the vehicle.
4
Inspect the vehicle’s receiver module for damage or disconnection.
5
Scan the vehicle’s Body Control Module (BCM) for error codes related to keyless entry.

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

•Multimeter
•Small flathead screwdriver

Parts Required

•CR2032 battery for key fob

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Diagnostic Steps

1
Check the battery condition of the key fob using a multimeter.
2
Replace the key fob battery and test its function.
3
Attempt reprogramming the key fob to the vehicle.
4
Inspect the vehicle’s receiver module for damage or disconnection.
5
Scan the vehicle’s Body Control Module (BCM) for error codes related to keyless entry.

Solution

1. Preparation

Gather tools: a small flathead screwdriver, a new key fob battery (typically CR2032), and a multimeter.
Ensure the vehicle is in a secure location and that you have access to all necessary components.

2. Replace Key Fob Battery

Open the Key Fob:
- Use the small flathead screwdriver to gently pry open the key fob at the seam.
- Take care not to damage the casing.
Remove Old Battery:
- Take note of the battery orientation before removing it.
- Replace it with a new CR2032 battery, ensuring the positive (+) side is facing up.
Reassemble Key Fob:
- Snap the key fob casing back together securely.
- Ensure all tabs are properly aligned and locked in place.

3. Reprogram Key Fob (if necessary)

Get in the Vehicle:
- Sit in the driver’s seat and close all doors.
Insert Key in Ignition:
- Insert the key into the ignition and turn to the "On" position without starting the engine.
Cycle the Ignition:
- Turn the key to the “Off” position, then back to “On” four times within six seconds.
- Leave the key in the “On” position after the last cycle.
Press the Lock Button:
- Press the lock button on the key fob once.
- The vehicle should respond by locking the doors to indicate successful programming.
Turn Off Ignition:
- Turn the ignition to the "Off" position to complete the programming.

4. Inspect Vehicle Receiver Module

Access Receiver Module:
- Locate the receiver module, typically located behind the dashboard or near the rearview mirror.
Check Connections:
- Ensure all electrical connectors are securely attached.
- Look for any signs of corrosion or damage.
Test Receiver Functionality:
- If possible, use a multimeter to check the power supply to the receiver module.
- Repair or replace any damaged connectors or the receiver module if necessary.