what to check if my Ford Explorer's remote keyless entry is not working

Ford Explorer Sixth Generation (2020-present)

Error Codes

1-2 hours

Time

medium

Difficulty

medium

Severity

3 min read

503 words

Problem Statement

Learn how to diagnose and fix the remote keyless entry issue in your Ford Explorer. Step-by-step guide with symptoms, diagnostic steps, and solutions.

Affected Component

Electrical

Estimated Time

1-2 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

•Ensure the vehicle is in 'Park' and the ignition is off before working on the electronic components.
•Use caution when working around the vehicle's electrical systems to avoid shorts or damage.

Symptoms

•Key fob buttons are unresponsive
•No audible confirmation sound when buttons are pressed
•Vehicle doors do not lock or unlock when using the remote
•Check engine or battery warning lights may be illuminated
•Manual locking and unlocking works without issues

Diagnostic Steps

1
Replace the battery in the key fob and test functionality.
2
Inspect the key fob for physical damage or wear.
3
Check the vehicle's battery voltage to ensure it is adequately charged.
4
Scan the vehicle for any diagnostic trouble codes (DTCs) related to the keyless entry system.
5
Verify that the keyless entry module is receiving power and functioning properly.
6
Test the keyless entry system from a different proximity to the vehicle to rule out distance-related issues.

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
•Screwdriver
•Key fob opening tool (optional)

Parts Required

•Replacement key fob battery (CR2032 or as specified)

Related Faults

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Diagnostic Steps

1
Replace the battery in the key fob and test functionality.
2
Inspect the key fob for physical damage or wear.
3
Check the vehicle's battery voltage to ensure it is adequately charged.
4
Scan the vehicle for any diagnostic trouble codes (DTCs) related to the keyless entry system.
5
Verify that the keyless entry module is receiving power and functioning properly.
6
Test the keyless entry system from a different proximity to the vehicle to rule out distance-related issues.

Solution

1. Preparation

Gather tools: OBD-II scanner, multimeter, screwdriver, replacement key fob battery.
Ensure the vehicle is in a safe location and that the ignition is off.

2. Key Fob Battery Replacement

Open the key fob using a small screwdriver or a key fob opening tool.
Remove the old battery, noting the orientation.
Insert the new battery (commonly a CR2032) in the same orientation.
Snap the key fob back together securely.

3. Inspect and Test Keyless Entry Module

Locate the keyless entry module, usually found under the dashboard or in the driver’s side footwell.
Use a multimeter to check for power at the module's connector pins.
- Expected Voltage: 12V.
If no power is detected, trace wiring back to the fuse box to check for blown fuses or damaged wires.

4. Reprogram Key Fob (if necessary)

Insert the key into the ignition and turn to the "On" position without starting the engine.
Press the "Unlock" button on the key fob for 5 seconds.
Turn the key to the "Off" position and remove it.
Test the key fob to ensure it now operates the keyless entry system.