Resetting the check engine light on your 2013 Ford F-150 doesn’t have to be complicated. This guide walks you through safe, step-by-step methods—from using an OBD2 scanner to disconnecting the battery—so you can clear the light and confirm the issue is resolved.
Key Takeaways
- Always diagnose the problem first: Never reset the check engine light without identifying and fixing the underlying issue, such as a loose gas cap or faulty oxygen sensor.
- Use an OBD2 scanner for the safest reset: This tool reads error codes and allows you to clear them properly, giving you insight into what triggered the light.
- Disconnecting the battery works—but has side effects: While it can reset the light, it also resets radio settings, clock, and adaptive transmission learning.
- Drive cycles are essential for confirmation: After resetting, drive your truck through a complete drive cycle to ensure the system rechecks all components and doesn’t retrigger the light.
- Keep records of repairs and resets: Documenting what you did helps with future troubleshooting and increases resale value.
- Seek professional help if the light returns: A recurring check engine light may indicate a serious issue requiring expert diagnosis.
- Prevention is better than reset: Regular maintenance like checking the gas cap and using quality fuel can prevent many common triggers.
How to Reset Check Engine Light on 2013 F-150
If you’ve ever seen the check engine light pop up on your 2013 Ford F-150, you know how unsettling it can be. That little amber icon on your dashboard isn’t just annoying—it’s your truck’s way of saying, “Hey, something’s not right.” But don’t panic. In many cases, the issue is minor and easily fixable. And once you’ve addressed the problem, you’ll want to reset that light so you can drive with peace of mind.
This comprehensive guide will walk you through everything you need to know about resetting the check engine light on your 2013 F-150. Whether you’re a DIY enthusiast or just looking to save a trip to the mechanic, we’ll cover safe, effective methods—from using an OBD2 scanner to disconnecting the battery. You’ll also learn why simply clearing the light isn’t enough and how to make sure the problem doesn’t come back.
By the end of this guide, you’ll be equipped with the knowledge and confidence to handle check engine light resets like a pro. Let’s get started.
Understanding the Check Engine Light
Visual guide about How to Reset Check Engine Light on 2013 F-150
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Before you reset the light, it’s important to understand what it means. The check engine light—also known as the malfunction indicator lamp (MIL)—is part of your truck’s onboard diagnostic system (OBD2). This system constantly monitors engine performance, emissions, and other critical systems.
When a sensor detects a problem—like a misfire, low fuel pressure, or a faulty emissions component—the system logs a diagnostic trouble code (DTC) and illuminates the check engine light. The 2013 F-150 uses a sophisticated OBD2 system that can detect issues ranging from something as simple as a loose gas cap to more serious problems like a failing catalytic converter.
Important: The check engine light doesn’t always mean a major repair is needed. In fact, studies show that nearly 30% of check engine lights are triggered by something as minor as a loose or missing gas cap. That’s why diagnosing the issue before resetting the light is crucial.
Ignoring the light or resetting it without fixing the root cause can lead to reduced fuel efficiency, increased emissions, and even engine damage over time. So, while resetting the light is easy, doing it the right way ensures your truck stays in top shape.
Tools You’ll Need
Resetting the check engine light on your 2013 F-150 requires minimal tools, but having the right equipment makes the process smoother and more effective. Here’s what you’ll need:
- OBD2 Scanner: This is the most reliable tool for reading and clearing trouble codes. Look for a basic code reader (around $20–$50) or a more advanced scanner with live data and reset capabilities.
- Owner’s Manual: Your F-150’s manual contains valuable information about the check engine light, fuse locations, and battery disconnection procedures.
- Basic Hand Tools: A socket wrench or wrench set may be needed if you choose the battery disconnection method.
- Pen and Paper: To record error codes and repair notes for future reference.
- Smartphone or Tablet: Useful for looking up code meanings or watching video tutorials if you’re unsure.
If you don’t already own an OBD2 scanner, consider investing in one. They’re inexpensive, reusable, and can save you hundreds in diagnostic fees over time. Popular brands include Innova, BlueDriver, and Autel.
Step-by-Step: How to Reset Check Engine Light Using an OBD2 Scanner
Using an OBD2 scanner is the safest and most effective way to reset the check engine light on your 2013 F-150. This method allows you to read the trouble codes, understand the problem, and clear the light—all without risking damage to your truck’s electronics.
Step 1: Locate the OBD2 Port
The OBD2 port in your 2013 F-150 is located under the dashboard on the driver’s side, near the steering column. It’s a 16-pin connector, usually black or gray, and easy to spot once you know where to look. You may need to crouch down or use a flashlight to see it clearly.
Tip: If you can’t find it, check behind a small panel or cover. Some models have a removable cap labeled “OBD” or “Diagnostics.”
Step 2: Plug in the OBD2 Scanner
Turn off the ignition, then plug the OBD2 scanner into the port. Make sure it’s fully seated and secure. Most scanners will power on automatically when connected, but some may require you to turn the ignition to the “ON” position (without starting the engine).
Step 3: Turn the Ignition to “ON”
With the scanner plugged in, turn the key to the “ON” position. The dashboard lights will illuminate, and the scanner should begin communicating with your truck’s computer. Do not start the engine yet.
Step 4: Read the Trouble Codes
Follow the scanner’s on-screen prompts to read the diagnostic trouble codes (DTCs). The scanner will display one or more codes, such as P0420 (catalytic converter efficiency below threshold) or P0457 (evaporative emission system leak detected).
Write down the codes and use the scanner’s built-in database or an online resource like OBD-Codes.com to understand what they mean. This step is critical—don’t skip it.
Step 5: Fix the Underlying Issue
Once you know what’s causing the check engine light, take steps to fix it. For example:
- If the code is P0455 or P0457, check and tighten your gas cap. Replace it if it’s cracked or worn.
- If the code is P0171 or P0174 (system too lean), inspect for vacuum leaks or clean the mass airflow (MAF) sensor.
- If the code is P0300–P0308 (misfire), check spark plugs, ignition coils, or fuel injectors.
Important: Never reset the light without addressing the problem. Doing so is like turning off a smoke alarm while the house is still on fire.
Step 6: Clear the Codes and Reset the Light
After fixing the issue, return to the scanner and select the “Clear Codes” or “Erase DTCs” option. The scanner will send a command to your truck’s computer to reset the check engine light.
Once cleared, the light should turn off. If it doesn’t, double-check that the scanner completed the reset and that the ignition is still on.
Step 7: Turn Off the Ignition and Unplug the Scanner
Turn the key back to the “OFF” position and unplug the OBD2 scanner. Store it in a safe place for future use.
Step 8: Perform a Drive Cycle
To ensure the system rechecks all components and confirms the fix, you’ll need to complete a drive cycle. This is a series of driving conditions that allow the onboard computer to run self-tests.
A typical drive cycle for the 2013 F-150 includes:
- Start the engine and let it idle for 2–3 minutes (cold start).
- Drive at 30–40 mph for 5–10 minutes.
- Accelerate to 55–65 mph and maintain speed for 5 minutes.
- Decelerate without braking (coast) for 1–2 minutes.
- Repeat the cycle once or twice.
After completing the drive cycle, check the dashboard. If the check engine light stays off, the reset was successful.
Alternative Method: Resetting by Disconnecting the Battery
If you don’t have an OBD2 scanner, you can reset the check engine light by disconnecting the battery. This method forces the truck’s computer to reset by cutting power to the system. However, it comes with some drawbacks, so use it only if necessary.
Step 1: Turn Off the Engine and Remove the Key
Make sure the engine is off and the key is out of the ignition. This prevents electrical surges or damage during disconnection.
Step 2: Locate the Battery
The battery in the 2013 F-150 is located under the hood on the driver’s side. It’s a standard 12-volt lead-acid battery with positive (+) and negative (-) terminals.
Step 3: Disconnect the Negative Terminal
Use a wrench or socket to loosen the nut on the negative (black) battery cable. Once loose, carefully remove the cable from the terminal and tuck it away so it doesn’t touch metal.
Safety Tip: Always disconnect the negative terminal first to avoid short circuits. Never touch both terminals at the same time with a metal tool.
Step 4: Wait 15–30 Minutes
Leave the battery disconnected for at least 15 minutes. This allows the truck’s computer (ECU) to fully discharge and reset. For a more thorough reset, wait up to 30 minutes.
Step 5: Reconnect the Battery
Reattach the negative cable to the terminal and tighten the nut securely. Make sure the connection is snug to prevent voltage drops.
Step 6: Turn the Ignition On (Don’t Start Yet)
Turn the key to the “ON” position and wait a few seconds. You may notice the radio, clock, and other systems resetting. This is normal.
Step 7: Start the Engine
Start the engine and let it idle for 2–3 minutes. The check engine light should be off. If it returns immediately, the underlying issue hasn’t been fixed.
Step 8: Drive the Truck
Take your F-150 for a short drive to allow the system to relearn idle settings and complete initial diagnostics. Avoid aggressive driving for the first 10–15 minutes.
Drawbacks of Battery Disconnection
While this method works, it has some downsides:
- Resets radio presets and clock: You’ll need to reprogram your favorite stations and set the time.
- Resets adaptive transmission learning: The transmission may feel jerky or shift oddly until it relearns your driving habits.
- Doesn’t show error codes: You won’t know what caused the light in the first place.
- May not clear all monitors: Some emissions monitors require a drive cycle to reset, even after battery disconnection.
For these reasons, the OBD2 scanner method is strongly preferred.
Troubleshooting Common Issues
Even after resetting the check engine light, you might run into problems. Here’s how to handle common scenarios:
The Light Comes Back On Immediately
If the check engine light returns right after resetting, the issue wasn’t fully resolved. Use an OBD2 scanner to read the new codes and investigate further. Common causes include:
- A faulty oxygen sensor
- A failing catalytic converter
- An ongoing misfire
- A persistent vacuum leak
The Light Flickers or Flashes
A flashing check engine light indicates a severe misfire that can damage the catalytic converter. Pull over safely, turn off the engine, and have the truck towed to a repair shop. Continuing to drive can cause expensive damage.
The Light Won’t Reset
If the light won’t turn off after using an OBD2 scanner or disconnecting the battery, there may be a wiring issue, a faulty sensor, or a problem with the ECU itself. In rare cases, the instrument cluster may need repair. Consult a professional mechanic.
Radio or Clock Won’t Reset After Battery Disconnection
Some 2013 F-150s require a radio code to restore presets after battery disconnection. Check your owner’s manual or contact a Ford dealer for the code. The clock can usually be reset through the instrument panel menu.
Preventing Future Check Engine Light Issues
The best way to deal with the check engine light is to prevent it from coming on in the first place. Here are some proactive tips:
- Check the gas cap regularly: Make sure it’s tight after every fill-up. Replace it if it’s cracked or doesn’t click when tightened.
- Use quality fuel: Stick to reputable gas stations and avoid ethanol-blended fuels if possible.
- Follow the maintenance schedule: Replace spark plugs, air filters, and fuel filters as recommended in your owner’s manual.
- Inspect hoses and belts: Look for cracks, leaks, or wear during routine under-hood checks.
- Keep the MAF sensor clean: Use a MAF cleaner spray every 15,000–20,000 miles to prevent buildup.
- Monitor fuel trims: If you have an advanced OBD2 scanner, check long-term and short-term fuel trims for early signs of issues.
Regular maintenance not only prevents check engine lights but also extends the life of your engine and improves fuel economy.
When to See a Mechanic
While many check engine light issues can be handled at home, some problems require professional diagnosis and repair. Seek a qualified mechanic if:
- The light is flashing or blinking
- You notice poor performance, rough idling, or stalling
- The same code keeps returning after repair
- You’re uncomfortable performing diagnostics or repairs
- The issue involves the transmission, ABS, or airbags
Modern vehicles like the 2013 F-150 have complex systems that may require specialized tools and expertise. Don’t hesitate to get help when needed.
Conclusion
Resetting the check engine light on your 2013 Ford F-150 is a straightforward process—but only if you do it the right way. Always start by diagnosing the problem using an OBD2 scanner, fix the underlying issue, and then clear the codes. While disconnecting the battery can work in a pinch, it’s not the most reliable or informative method.
By following the steps in this guide, you’ll not only reset the light but also gain valuable insight into your truck’s health. Remember, the check engine light is there to protect your vehicle, so treat it with respect. With regular maintenance and smart troubleshooting, you can keep your F-150 running smoothly for years to come.
Now that you know how to reset the check engine light, you can tackle the issue with confidence—and maybe even save a few bucks in the process.