my Ford Explorer Sixth Generation (2020-present) remote start not working how to troubleshoot

Ford Explorer Sixth Generation (2020-present)

Error Codes

1-2 hours

Time

medium

Difficulty

medium

Severity

3 min read

501 words

Problem Statement

Learn how to troubleshoot and fix the remote start issue in your Ford Explorer Sixth Generation. Step-by-step guide with diagnostic procedures and solutions.

Affected Component

Electrical

Estimated Time

1-2 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

•Disconnect the battery before working on electrical systems.
•Ensure the vehicle is in a well-ventilated area while performing diagnostics.

Symptoms

•Remote start function fails to activate
•Key fob buttons appear unresponsive
•Check engine light illuminated
•Vehicle does not respond to remote commands
•Security light flashing on dashboard

Diagnostic Steps

1
Verify that the key fob battery is charged and functional.
2
Check for any error codes using an OBD-II scanner.
3
Ensure that the vehicle is in a suitable environment for remote start (e.g., doors closed, hood closed).
4
Inspect the vehicle's battery voltage and connections.
5
Confirm that the vehicle's security system is not engaged (e.g., doors locked, but not in 'armed' mode).
6
Review the vehicle’s owner manual for specific remote start conditions and any applicable settings.

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
•Basic hand tools

Parts Required

•Key fob battery (CR2032 or equivalent)
•Vehicle battery (if weak or faulty)

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Diagnostic Steps

1
Verify that the key fob battery is charged and functional.
2
Check for any error codes using an OBD-II scanner.
3
Ensure that the vehicle is in a suitable environment for remote start (e.g., doors closed, hood closed).
4
Inspect the vehicle's battery voltage and connections.
5
Confirm that the vehicle's security system is not engaged (e.g., doors locked, but not in 'armed' mode).
6
Review the vehicle’s owner manual for specific remote start conditions and any applicable settings.

Solution

1. Preparation

Tools Required: OBD-II scanner, multimeter, basic hand tools.
Ensure the vehicle is parked in a safe area and secure the environment.
Disconnect the vehicle battery for safety.

2. Key Fob Inspection

Open the key fob by prying it apart gently.
Remove the battery and test it with a multimeter to ensure it has sufficient voltage (typically 3V for CR2032 batteries).
Replace the battery if low or dead.
Reassemble the key fob and test the remote start function.

3. Battery and Connections Check

Use a multimeter to measure the battery voltage; it should be around 12.6V or higher.
Inspect battery terminals for corrosion or loose connections. Clean and tighten as necessary.
If the battery is weak, replace it with a new, fully charged battery.

4. Security System Reset

Ensure the vehicle is in “Run” mode and the security system is disabled.
To reset, lock and unlock the vehicle using the key fob or the physical key.
Test the remote start function again.

5. Error Code Resolution

Connect the OBD-II scanner and read any stored error codes.
If codes are present, address the specific issues indicated by the codes (e.g., engine issues that prevent remote start).
Clear the codes and retest the remote start feature.