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

Ford Explorer Fifth Generation (2011-2019)

Error Codes

1-2 hours

Time

medium

Difficulty

medium

Severity

3 min read

494 words

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 electrical components to avoid short circuits.

Symptoms

•Remote start button does not respond when pressed
•Engine cranks but does not start
•Dashboard lights flicker briefly then go dark
•Check engine light illuminated
•Security system indicator light is flashing

Diagnostic Steps

1
Check the vehicle's battery voltage using a multimeter to ensure it is adequately charged.
2
Verify that the remote key fob has a functioning battery by testing its signal with a remote tester.
3
Inspect the vehicle's fuse box for blown fuses related to the remote start system.
4
Scan the vehicle for any error codes using an OBD-II scanner to identify potential issues.
5
Ensure that all doors are properly closed and that the hood is secure, as these can inhibit remote start functionality.
6
Test the remote start feature with a spare key fob, if available, to rule out a faulty key fob.

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

•Multimeter
•OBD-II scanner
•Small flathead screwdriver
•Fuse puller

Parts Required

•Key fob battery (CR2032)
•Replacement fuses (if applicable)

Related Faults

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Diagnostic Steps

1
Check the vehicle's battery voltage using a multimeter to ensure it is adequately charged.
2
Verify that the remote key fob has a functioning battery by testing its signal with a remote tester.
3
Inspect the vehicle's fuse box for blown fuses related to the remote start system.
4
Scan the vehicle for any error codes using an OBD-II scanner to identify potential issues.
5
Ensure that all doors are properly closed and that the hood is secure, as these can inhibit remote start functionality.
6
Test the remote start feature with a spare key fob, if available, to rule out a faulty key fob.

Solution

1. Preparation

Gather necessary tools and parts.
Ensure the vehicle is in a safe and well-ventilated area.
Disconnect the vehicle's battery to prevent any electrical issues during the repair.

2. Inspect and Replace Key Fob Battery

Remove the key fob casing using a small flathead screwdriver.
Replace the old battery (usually a CR2032) with a new one, ensuring correct polarity.
Reassemble the key fob and test the remote start function.

3. Check and Replace Fuses

Locate the fuse box, typically found under the dashboard or in the engine compartment.
Use a fuse puller to check the fuses related to the remote start (refer to the owner’s manual for specific fuse locations).
Replace any blown fuses with the correct amperage fuses, ensuring they are securely in place.

4. Reconnect Battery and Test

Reconnect the battery terminals, ensuring a solid connection.
Attempt to use the remote start feature to see if it functions properly.

5. Clear Error Codes

Use the OBD-II scanner to clear any stored trouble codes.
Test the remote start feature again after clearing codes to check for any new codes that may appear.