how to fix the remote start not working on my Ford Explorer

Ford Explorer Sixth Generation (2020-present)

Error Codes

1-2 hours

Time

medium

Difficulty

medium

Severity

3 min read

534 words

Problem Statement

Learn how to diagnose and fix the remote start issue on 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 battery before working on electrical systems to avoid short circuits.
•Ensure the vehicle is in a secure location while working on it.

Symptoms

•Remote start button not responding
•No engine crank or startup when using remote start
•"Remote Start Disabled" message on the dashboard
•Key fob not unlocking or locking doors properly
•Check engine light illuminated (if related to the issue)

Diagnostic Steps

1
Check the battery voltage of the key fob using a multimeter to ensure it has sufficient power.
2
Inspect the vehicle's battery and charging system to confirm it is functioning correctly.
3
Scan the vehicle's computer for any fault codes using an OBD-II scanner.
4
Verify that all doors, hood, and trunk are securely closed, as remote start will not activate if any are ajar.
5
Confirm that the vehicle is in park (P) and the brake pedal is not depressed during remote start attempts.
6
Check for any aftermarket remote start systems or modifications that may interfere with the factory system.

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
•Small flat-head screwdriver
•Torque wrench

Parts Required

•Key fob battery (CR2032 or as specified)
•Vehicle battery (if replacement is necessary)

Related Faults

Share this solution

Comments

No comments yet

Be the first to share your thoughts

Back to Generation

Diagnostic Steps

1
Check the battery voltage of the key fob using a multimeter to ensure it has sufficient power.
2
Inspect the vehicle's battery and charging system to confirm it is functioning correctly.
3
Scan the vehicle's computer for any fault codes using an OBD-II scanner.
4
Verify that all doors, hood, and trunk are securely closed, as remote start will not activate if any are ajar.
5
Confirm that the vehicle is in park (P) and the brake pedal is not depressed during remote start attempts.
6
Check for any aftermarket remote start systems or modifications that may interfere with the factory system.

Solution

1. Preparation

Gather necessary tools and parts.
Ensure the vehicle is parked safely and the engine is off.
Disconnect the negative battery terminal for safety.

2. Replace Key Fob Battery

Remove the key fob cover using a small flat-head screwdriver.
Replace the old battery with a new one (typically a CR2032).
Reassemble the key fob and test the remote start function.

3. Inspect and Test Vehicle Battery

Use a multimeter to check the vehicle battery voltage; it should read above 12.4 volts.
If the voltage is low, charge or replace the battery as needed.
Reconnect the negative battery terminal.

4. Reset Remote Start System

Locate the remote start module, usually found under the dash or near the steering column.
Disconnect the module's wiring harness for about 10 minutes to reset the system.
Reconnect the wiring harness and test the remote start feature again.

5. Check for Fault Codes

Reconnect the OBD-II scanner to the vehicle's diagnostic port.
Review any stored fault codes relevant to the remote start system.
Address any issues indicated by the fault codes, such as sensor malfunctions or wiring issues.