how to troubleshoot Ford Explorer Fifth Generation (2011-2019) not responding to remote start

Ford Explorer Fifth Generation (2011-2019)

Error Codes

1-2 hours

Time

medium

Difficulty

high

Severity

3 min read

527 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 troubleshoot and fix the remote start issue in Ford Explorer (2011-2019). Step-by-step guide with diagnostic steps 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 components to prevent shorts.
•Ensure the vehicle is in a secure location during testing to avoid accidents.

Symptoms

•Remote start button does not activate the engine
•No sound or indicator lights when attempting to remote start
•Key fob battery appears functional (other buttons work)
•Engine does not start when using the key ignition
•Security light blinking on the dashboard

Diagnostic Steps

1
Check the key fob battery by testing other functions or replacing it.
2
Verify that the vehicle is in a secure area (not in a garage) and that all doors are closed.
3
Scan for error codes using an OBD-II scanner to check for any related issues.
4
Inspect the vehicle's security system functionality and look for any warning indicators.
5
Ensure that the hood is closed properly, as many vehicles disable remote start if the hood is ajar.
6
Check for blown fuses related to the remote start 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 flathead screwdriver

Parts Required

•Key fob battery
•Fuse (if blown)
•Hood switch (if faulty)

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Diagnostic Steps

1
Check the key fob battery by testing other functions or replacing it.
2
Verify that the vehicle is in a secure area (not in a garage) and that all doors are closed.
3
Scan for error codes using an OBD-II scanner to check for any related issues.
4
Inspect the vehicle's security system functionality and look for any warning indicators.
5
Ensure that the hood is closed properly, as many vehicles disable remote start if the hood is ajar.
6
Check for blown fuses related to the remote start system.

Solution

1. Preparation

Gather necessary tools and parts.
Ensure the vehicle is parked safely, and the engine is off.
Disconnect the battery to prevent electrical shorts during the repair.

2. Replace Key Fob Battery

Remove the key fob cover using a small flathead screwdriver.
Replace the old battery with a new one, ensuring correct polarity.
Reassemble the key fob and test the remote start function.

3. Inspect and Reset Security System

Reconnect the battery if previously disconnected.
Turn the ignition key to the "On" position without starting the engine.
Wait for 10 minutes until the security light stops blinking.
Turn the ignition off and then attempt to use the remote start again.

4. Check Fuses

Open the fuse box under the dashboard or hood.
Locate the fuse for the remote start (refer to the owner’s manual for the exact location).
Use a multimeter or visually inspect to confirm if the fuse is blown.
Replace any blown fuses with a fuse of the same amperage.

5. Verify Hood Switch Functionality

Locate the hood switch, typically located near the latch.
Test the switch with a multimeter to ensure it is functioning properly.
If faulty, replace the hood switch.