my Ford Explorer's remote start feature isn't working what should I check

Ford Explorer Sixth Generation (2020-present)

Error Codes

1-2 hours

Time

medium

Difficulty

high

Severity

3 min read

516 words

⚠️ Safety Warning

This issue requires immediate attention. If you are not experienced with automotive repairs, consult a professional mechanic. Working on critical systems can be dangerous.

Problem Statement

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

Affected Component

Electrical

Estimated Time

1-2 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

•Disconnect the battery before working on any electrical connections.

Symptoms

•Remote start button does not activate the vehicle
•Vehicle does not respond to the key fob
•Check engine light illuminated
•Security light flashing on the dashboard
•Engine cranks but does not start when attempted remotely

Diagnostic Steps

1
Check the key fob battery to ensure it has sufficient charge.
2
Verify that the vehicle is within range of the remote start feature.
3
Inspect the vehicle's battery voltage and connections.
4
Scan for error codes using an OBD-II scanner to identify any related issues.
5
Check the status of the vehicle’s security system for any malfunctions.
6
Ensure that the hood is properly closed and the brake pedal is not depressed when attempting to start.

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
•Standard socket set

Parts Required

•CR2032 battery for the key fob

Related Faults

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Diagnostic Steps

1
Check the key fob battery to ensure it has sufficient charge.
2
Verify that the vehicle is within range of the remote start feature.
3
Inspect the vehicle's battery voltage and connections.
4
Scan for error codes using an OBD-II scanner to identify any related issues.
5
Check the status of the vehicle’s security system for any malfunctions.
6
Ensure that the hood is properly closed and the brake pedal is not depressed when attempting to start.

Solution

1. Preparation

Gather necessary tools: OBD-II scanner, multimeter, standard socket set.
Ensure the vehicle is parked on a level surface and the ignition is off.

2. Replace Key Fob Battery

Locate the small slot on the side of the key fob and carefully pry it open.
Replace the old battery with a new CR2032 battery, ensuring the positive side is facing up.
Reassemble the key fob and test the remote start feature.

3. Check Vehicle Battery and Connections

Open the hood and inspect the battery connections for corrosion or looseness.
Use a multimeter to check the battery voltage; it should read around 12.6 volts or higher.
If the voltage is low, charge the battery or replace it if necessary.

4. Scan for Error Codes

Connect the OBD-II scanner to the diagnostic port under the dashboard.
Turn the ignition to the "ON" position without starting the engine.
Read and record any error codes that may indicate issues with the remote start system or related components.

5. Inspect Security System

Check the vehicle's manual for information on the security system operation.
Ensure that the security system is disarmed and not preventing the remote start.
If the security light is flashing, consult a technician for further diagnostics.

6. Verify Hood and Brake Switches

Inspect the hood latch to confirm it is fully engaged and the hood is closed properly.
Test the brake switch by pressing the brake pedal and verifying that it is functioning correctly.