How to Reset Check Engine Light on 2013 Ford F150

Resetting the check engine light on a 2013 Ford F150 can be done using an OBD2 scanner, disconnecting the battery, or completing a drive cycle. This guide walks you through each method step by step, helping you clear the light and verify the fix.

Key Takeaways

• Understand the cause first: Always diagnose the issue before resetting the light—clearing it without fixing the problem will only make it return.
• Use an OBD2 scanner for best results: This is the fastest, safest, and most reliable way to reset the check engine light and read trouble codes.
• Battery disconnect works but has drawbacks: Disconnecting the battery can reset the light, but it also erases radio settings, clock, and learned engine data.
• Drive cycles may clear minor issues: Some temporary faults resolve after completing a specific driving pattern, allowing the system to reset automatically.
• Check for pending codes: Even after resetting, monitor your truck for new codes or warning lights to ensure the problem is truly resolved.
• Use genuine Ford tools if possible: While generic scanners work, Ford-specific tools like Forscan offer deeper diagnostics and better compatibility.
• Don’t ignore recurring lights: If the check engine light comes back quickly, have your truck inspected by a professional mechanic.

How to Reset Check Engine Light on 2013 Ford F150

If you’ve recently fixed an issue with your 2013 Ford F150—like replacing a loose gas cap or repairing a faulty oxygen sensor—you might be wondering how to reset the check engine light. That persistent yellow or orange warning on your dashboard can be annoying, even when you know the problem is solved. The good news? Resetting the check engine light on your 2013 F150 is straightforward, and you can do it yourself with a few simple tools and steps.

In this guide, we’ll walk you through multiple methods to reset the check engine light, including using an OBD2 scanner, disconnecting the battery, and completing a drive cycle. We’ll also explain why it’s important to diagnose the issue first, what to expect after resetting, and how to avoid common mistakes. Whether you’re a DIY enthusiast or just trying to save a trip to the mechanic, this guide has you covered.

Let’s get started.

Why the Check Engine Light Comes On

Before we dive into resetting the light, it’s important to understand why it came on in the first place. The check engine light—also known as the malfunction indicator lamp (MIL)—is part of your truck’s onboard diagnostics system (OBD2). It monitors everything from engine performance and emissions to fuel system efficiency and exhaust components.

When the system detects a problem—such as a misfire, low fuel pressure, or a faulty sensor—it stores a diagnostic trouble code (DTC) and illuminates the check engine light. These codes help mechanics (and you) identify the root cause.

Common causes in a 2013 Ford F150 include:

• Loose or damaged gas cap
• Faulty oxygen (O2) sensor
• Mass airflow (MAF) sensor issues
• Catalytic converter problems
• Spark plug or ignition coil failure
• Evaporative emissions (EVAP) system leaks

Important: Resetting the light without fixing the underlying issue is like turning off a smoke alarm while your kitchen is still on fire. The light will likely come back on, and you could risk further damage to your engine or emissions system.

So, before you reset, make sure the problem is resolved. If you’re unsure, use an OBD2 scanner to read the trouble codes and understand what’s going on.

Method 1: Using an OBD2 Scanner (Recommended)

The most effective and reliable way to reset the check engine light on your 2013 Ford F150 is by using an OBD2 scanner. This tool plugs into your truck’s diagnostic port, reads the trouble codes, and allows you to clear them—including the check engine light.

This method is fast, safe, and doesn’t erase other vehicle settings like radio presets or clock time. Plus, it gives you valuable insight into what caused the light to come on in the first place.

What You’ll Need

• OBD2 scanner (basic models start around $20)
• Your 2013 Ford F150
• Ignition key

Step-by-Step Instructions

Step 1: Locate the OBD2 Port

The OBD2 port in your 2013 Ford F150 is located under the dashboard on the driver’s side. It’s usually near the steering column, about knee-level. It’s a 16-pin connector that looks like a trapezoid-shaped plug. You may need to crouch down or use a flashlight to find it.

Step 2: Plug in the Scanner

Turn off the ignition, then plug the OBD2 scanner into the port. Make sure it’s securely connected. Some scanners will power on automatically when plugged in; others may require you to turn the ignition to the “ON” position (without starting the engine).

Step 3: Turn the Ignition On

Turn the key to the “ON” position. The dashboard lights should illuminate, but the engine should remain off. This powers the vehicle’s computer system so the scanner can communicate with it.

Step 4: Read the Trouble Codes

Follow the scanner’s on-screen prompts to read the diagnostic trouble codes (DTCs). Most scanners will display codes like P0420 (catalytic converter efficiency) or P0171 (system too lean). Write down the codes or take a photo for reference.

Tip: If you’re not sure what a code means, search it online or use the scanner’s built-in code library. Understanding the code helps confirm the issue is fixed before resetting.

Step 5: Clear the Codes

Once you’ve confirmed the problem is resolved, use the scanner to clear the codes. Look for an option like “Clear Codes,” “Erase DTCs,” or “Reset MIL.” Select it and confirm when prompted.

Step 6: Turn Off the Ignition

After clearing the codes, turn the ignition off and unplug the scanner. Wait about 30 seconds, then start the engine. The check engine light should be off.

If the light remains off after driving for a few minutes, the reset was successful. If it comes back on, the issue may not be fully resolved, or a new problem has occurred.

Recommended OBD2 Scanners for 2013 Ford F150

• BlueDriver Bluetooth Scanner: Works with your smartphone via app, offers detailed diagnostics, and supports Ford-specific codes.
• Autel MaxiCOM MK808: Professional-grade tool with advanced features, including live data and module programming.
• Innova 3160g: User-friendly, color screen, and includes ABS and transmission diagnostics.
• Forscan (with ELM327 adapter): A free software option that works with compatible OBD2 adapters. It’s especially powerful for Ford vehicles and allows access to manufacturer-specific features.

Pro Tip: If you plan to work on your truck regularly, investing in a quality scanner pays off in the long run. It saves time, money, and trips to the mechanic.

Method 2: Disconnecting the Battery

If you don’t have an OBD2 scanner, disconnecting the battery is a common alternative to reset the check engine light. This method forces the vehicle’s computer (PCM) to reset by cutting power, which clears stored trouble codes and turns off the light.

However, this method has some downsides. It also resets other systems, including:

• Radio presets and anti-theft codes
• Clock and trip odometer
• Learned engine parameters (like idle speed and fuel trim)
• Transmission shift points (in some cases)

Because of this, it’s best used as a last resort or when you don’t have access to a scanner.

What You’ll Need

• Wrench or socket set (usually 10mm)
• Your 2013 Ford F150
• Safety gloves (optional but recommended)

Step-by-Step Instructions

Step 1: Turn Off the Engine and Remove the Key

Make sure the truck is completely off and the key is removed from the ignition. This prevents any electrical surges or damage during the process.

Step 2: Locate the Battery

The battery in a 2013 Ford F150 is located under the hood on the driver’s side. It’s a standard 12-volt lead-acid battery, usually secured with a hold-down clamp.

Step 3: Disconnect the Negative Terminal

Use a wrench to loosen the nut on the negative (-) battery terminal. The negative cable is usually black and marked with a minus sign. Carefully remove the cable and tuck it away from the battery so it doesn’t accidentally touch the terminal.

Safety Note: Always disconnect the negative terminal first to reduce the risk of 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 gives the vehicle’s computer enough time to fully discharge and reset. Some sources recommend up to 30 minutes for a complete reset.

Step 5: Reconnect the Battery

Reattach the negative cable to the battery terminal and tighten the nut securely. Make sure the connection is tight to avoid electrical issues.

Step 6: Start the Engine

Turn the ignition on and start the engine. The check engine light should be off. You may notice the radio asks for a code (if your truck has an anti-theft system), and the clock will need to be reset.

Step 7: Drive the Truck

Take your truck for a short drive (10–15 minutes) to allow the computer to relearn basic parameters like idle speed and fuel mixture. During this time, the system will run self-checks and monitor for any new faults.

Important Considerations

• Radio Code: If your F150 has a premium sound system (like Sony), you may need a radio code to restore functionality. Check your owner’s manual or contact a Ford dealer.
• Adaptive Learning: The PCM uses adaptive learning to optimize performance. After a battery disconnect, it may take a few drive cycles for the engine to run smoothly again.
• Not Always Effective: If the underlying issue isn’t fixed, the light will return. This method only clears stored codes—it doesn’t repair mechanical problems.

Method 3: Completing a Drive Cycle

Sometimes, the check engine light comes on due to a temporary glitch—like a loose gas cap or a brief sensor malfunction. In these cases, the light may turn off on its own after completing a specific driving pattern known as a “drive cycle.”

A drive cycle is a series of driving conditions that allow the vehicle’s onboard computer to test and verify that all emissions systems are working properly. Once all tests pass, the computer clears the trouble codes and turns off the check engine light.

This method doesn’t require any tools, but it does require patience and the right driving conditions.

What Is a Drive Cycle?

A drive cycle typically includes:

• Cold start (engine off for at least 8 hours)
• Idle for 2–3 minutes
• Accelerate to 55 mph and maintain speed for 5 minutes
• Decelerate without braking (coast in gear)
• Repeat acceleration and deceleration phases
• Idle again for 2–3 minutes
• Turn off the engine

Different systems require different tests. For example:

• The EVAP system test requires a cold start and steady driving.
• The catalytic converter test needs sustained highway speeds.
• The oxygen sensor test involves rapid acceleration and deceleration.

Step-by-Step Drive Cycle for 2013 Ford F150

Step 1: Ensure the Truck Is Cold

Start the drive cycle first thing in the morning, after the engine has been off for at least 8 hours. This ensures a true cold start, which is required for several emissions tests.

Step 2: Start the Engine and Idle

Start the engine and let it idle for 2–3 minutes. Do not touch the accelerator. This allows the engine to warm up slightly and stabilizes fuel trim.

Step 3: Drive at Low Speed

Drive at 25–35 mph for about 3–5 minutes. This helps the engine reach operating temperature and allows the oxygen sensors to activate.

Step 4: Accelerate to Highway Speed

Accelerate smoothly to 55–60 mph and maintain that speed for 5–8 minutes. This phase tests the catalytic converter and fuel system under load.

Step 5: Decelerate and Coast

Take your foot off the accelerator and coast in gear (do not brake) until the speed drops to around 20 mph. This tests the oxygen sensors during deceleration fuel cutoff.

Step 6: Repeat Acceleration and Deceleration

Repeat steps 4 and 5 at least once. This ensures multiple sensor readings and increases the chance of completing all tests.

Step 7: Return to Idle

Drive back to a safe location and let the engine idle for 2–3 minutes. This completes the cycle and allows the computer to finalize diagnostics.

Step 8: Turn Off the Engine

Turn off the engine and wait a few minutes. Then restart it. If the check engine light is off, the drive cycle was successful.

Tips for Success

• Avoid using cruise control—manual throttle input helps trigger sensor tests.
• Don’t turn off the engine during the cycle unless necessary.
• If the light doesn’t turn off after one cycle, repeat the process the next day.
• Some codes (like P0420) may require multiple drive cycles to clear.

Note: This method only works for temporary or self-correcting issues. If the problem persists, the light will return.

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 within minutes of starting the engine, the issue is likely still present. Use an OBD2 scanner to read the new codes and address the root cause. Ignoring it could lead to reduced fuel economy, poor performance, or engine damage.

The Light Flashes While Driving

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.

Radio or Clock Resets After Battery Disconnect

This is normal. Reconnect the battery, enter the radio code if required, and reset the clock. Refer to your owner’s manual for the radio code or contact a Ford dealer.

Scanner Won’t Connect

If your OBD2 scanner won’t communicate with the truck, check the following:

• Is the ignition in the “ON” position?
• Is the scanner compatible with Ford vehicles?
• Is the OBD2 port clean and undamaged?
• Try a different scanner or adapter.

Check Engine Light Won’t Clear

If the light won’t turn off after multiple attempts, the problem may be:

• A persistent fault (e.g., failing O2 sensor)
• A wiring issue or short circuit
• A faulty PCM (rare)

In these cases, professional diagnosis is recommended.

When to See a Mechanic

While resetting the check engine light is something most owners can do at home, there are times when you should seek professional help:

• The light comes back on repeatedly
• You notice performance issues (rough idle, hesitation, poor fuel economy)
• The light is flashing
• You’re unable to read or clear codes with a scanner
• You suspect a major issue (e.g., catalytic converter failure)

A certified Ford technician has access to advanced diagnostic tools and can perform tests that home scanners can’t. They can also check for technical service bulletins (TSBs) related to your 2013 F150.

Conclusion

Resetting the check engine light on your 2013 Ford F150 doesn’t have to be complicated. Whether you use an OBD2 scanner, disconnect the battery, or complete a drive cycle, the process is manageable with the right knowledge and tools.

Remember: always diagnose the issue first. Resetting the light without fixing the problem is only a temporary fix. Use an OBD2 scanner for the most accurate and reliable results, and avoid battery disconnects unless necessary.

By following the steps in this guide, you can clear the check engine light, restore peace of mind, and keep your F150 running smoothly. And if the light keeps coming back, don’t hesitate to consult a professional—your truck’s health is worth the investment.