my Ford Explorer remote start not working, what could be the issue

Ford Explorer Fifth Generation (2011-2019)

Error Codes

1-2 hours

Time

medium

Difficulty

medium

Severity

3 min read

448 words

Problem Statement

Learn how to diagnose and fix remote start issues in 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 shocks or shorts.

Symptoms

•Remote start button does not activate the engine
•Check engine light illuminated
•Security system warning light flashing
•No response from the key fob
•Engine starts then immediately shuts off
•Doors do not unlock remotely

Diagnostic Steps

1
Check the key fob battery and replace if necessary.
2
Verify that the vehicle is in park and the hood is closed securely.
3
Scan for error codes using an OBD-II scanner to identify any potential electrical issues.
4
Inspect the remote start system wiring for any visible damage or disconnections.
5
Test the key fob signal strength using a multimeter or a key fob tester.
6
Check the vehicle's battery voltage to ensure it is not low.

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 screwdriver
•Torque wrench

Parts Required

•Key fob battery (CR2032)
•Replacement wiring (if necessary)

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Diagnostic Steps

1
Check the key fob battery and replace if necessary.
2
Verify that the vehicle is in park and the hood is closed securely.
3
Scan for error codes using an OBD-II scanner to identify any potential electrical issues.
4
Inspect the remote start system wiring for any visible damage or disconnections.
5
Test the key fob signal strength using a multimeter or a key fob tester.
6
Check the vehicle's battery voltage to ensure it is not low.

Solution

1. Preparation

Ensure the vehicle is parked safely and the ignition is off.
Gather necessary tools and parts.
Disconnect the negative battery terminal to prevent electrical shorts.

2. Key Fob Battery Replacement

Locate the seam on the key fob and carefully pry it open using a small screwdriver.
Remove the old battery and insert a new battery of the same type (usually CR2032).
Snap the key fob back together securely.

3. Inspect Remote Start Wiring

Remove the dashboard panel or access cover to reach the remote start module.
Visually inspect all wiring connected to the remote start system for signs of wear or damage.
Reconnect any loose wires and replace any damaged wiring with appropriate gauge wire.

4. Reconnect Battery

Reconnect the negative battery terminal and ensure it is tightened securely.
Start the vehicle normally to check for any error codes or warning lights.