how to reset my Ford Explorer’s check engine light

Ford Explorer Fifth Generation (2011-2019)

Error Codes

30 minutes to 1 hour

Time

medium

Difficulty

medium

Severity

3 min read

461 words

Problem Statement

Learn how to reset the check engine light on your Ford Explorer. Step-by-step instructions with diagnostic steps and necessary tools for a successful reset.

Affected Component

Electrical

Estimated Time

30 minutes to 1 hour

⚠️ Safety Warnings

Important safety information - read before proceeding

•Ensure the vehicle is turned off before connecting or disconnecting the battery.

Symptoms

•Check engine light illuminated on the dashboard
•Possible stored trouble codes in the vehicle’s computer
•Potential rough idle or engine performance issues
•Recent maintenance or repair performed

Diagnostic Steps

1
Scan for error codes using an OBD-II scanner to identify any underlying issues.
2
Address any identified issues before attempting a reset.
3
Disconnect the negative battery terminal to reset the vehicle's computer.
4
Use the OBD-II scanner to clear the trouble codes if the vehicle is equipped with one.
5
Reconnect the battery terminal and start the vehicle to verify the check engine light is off.

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
•Socket wrench
•Safety gloves

Parts Required

•None required for the reset process; however, any faulty components identified should be replaced.

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Diagnostic Steps

1
Scan for error codes using an OBD-II scanner to identify any underlying issues.
2
Address any identified issues before attempting a reset.
3
Disconnect the negative battery terminal to reset the vehicle's computer.
4
Use the OBD-II scanner to clear the trouble codes if the vehicle is equipped with one.
5
Reconnect the battery terminal and start the vehicle to verify the check engine light is off.

Solution

1. Preparation

Gather necessary tools: OBD-II scanner, socket wrench, and safety gloves.
Ensure the vehicle is parked in a well-ventilated area with the engine turned off.

2. Scan for Error Codes

Connect the OBD-II scanner to the vehicle's diagnostic port (usually located under the dashboard).
Turn the ignition key to the "On" position without starting the engine.
Follow the scanner's instructions to read any stored trouble codes.

3. Clear Trouble Codes

If any codes are displayed, note them down for future reference.
Use the scanner's functionality to clear the codes from the vehicle’s computer.
Confirm that the scanner indicates the codes have been cleared successfully.

4. Battery Disconnect Method (if needed)

If the check engine light remains on after using the scanner, turn off the vehicle.
Use a socket wrench to disconnect the negative battery terminal.
Wait for approximately 15 minutes to allow the vehicle’s computer to reset.
Reconnect the negative battery terminal securely.

5. Final Verification

Start the vehicle and check if the check engine light is off.
Monitor the vehicle for any irregularities in performance.