This guide walks you through how to reset the engine light on a 2014 Challenger using both manual methods and OBD2 scanners. You’ll learn when it’s safe to reset the light and when to seek professional help.
Key Takeaways
- Understand the cause first: Never reset the engine light without diagnosing the underlying issue—doing so can mask serious problems.
- Use an OBD2 scanner for accuracy: This tool reads trouble codes and safely clears the check engine light after repairs.
- Manual reset methods exist but aren’t foolproof: Disconnecting the battery or using the gas pedal trick may work temporarily but won’t fix the root cause.
- Drive cycle matters: After resetting, complete a proper drive cycle so the vehicle’s computer can relearn and verify repairs.
- Battery disconnection has side effects: Resetting via battery removal may also reset radio presets, clock, and other settings.
- Persistent lights need professional help: If the light returns after reset, there’s likely an ongoing mechanical or sensor issue.
- Prevention is key: Regular maintenance reduces the chances of triggering the check engine light in the first place.
How to Reset Engine Light on 2014 Challenger
If you own a 2014 Dodge Challenger, you’ve probably seen that dreaded yellow or orange “Check Engine” light flicker on your dashboard. It’s easy to panic—does it mean your engine is about to explode? Is it going to cost thousands to fix? While the check engine light should never be ignored, the good news is that in many cases, it’s signaling a minor issue that you can address yourself.
This comprehensive guide will walk you through how to reset the engine light on a 2014 Challenger—safely, effectively, and with confidence. Whether you’ve already fixed the problem or just want to clear the light after a repair, we’ll cover multiple methods, from simple manual tricks to using professional-grade tools.
By the end of this guide, you’ll know:
– Why the check engine light comes on
– How to diagnose the issue before resetting
– Step-by-step methods to reset the light
– What to do if the light comes back
– Tips to prevent future warnings
Let’s get started.
Why Does the Check Engine Light Come On?
Visual guide about How to Reset Engine Light on 2014 Challenger
Image source: truckcustomizers.com
Before you even think about resetting the light, it’s crucial to understand why it’s on in the first place. The check engine light—also known as the malfunction indicator lamp (MIL)—is part of your vehicle’s onboard diagnostics system (OBD2). When the car’s computer detects a problem with the engine, emissions, or related systems, it stores a trouble code and illuminates the light.
Common causes in a 2014 Challenger include:
– Loose or faulty gas cap
– Oxygen (O2) sensor failure
– Mass airflow (MAF) sensor issues
– Spark plug or ignition coil problems
– Catalytic converter inefficiency
– Exhaust gas recirculation (EGR) valve malfunction
– Evaporative emissions system leaks
Some of these issues are minor—like a loose gas cap—while others can affect performance, fuel economy, or emissions. That’s why you should never reset the light without first identifying the cause.
Can You Reset the Engine Light Without Fixing the Problem?
Short answer: Yes, technically. But it’s a bad idea.
Resetting the check engine light without addressing the underlying issue is like turning off a smoke alarm while your kitchen is on fire. The light may go away temporarily, but the problem remains—and could get worse.
For example, if your O2 sensor is failing, it can cause poor fuel economy, rough idling, or increased emissions. Resetting the light won’t fix the sensor. In fact, the light will likely come back on within a few drive cycles because the computer continues to monitor the system.
So, the golden rule: Always diagnose and fix the issue before resetting the light.
Tools You’ll Need to Reset the Engine Light
Depending on the method you choose, you may need one or more of the following:
– OBD2 scanner (basic or advanced)
– 10mm wrench or socket (for battery disconnection)
– Owner’s manual (for vehicle-specific info)
– Pen and paper (to record trouble codes)
An OBD2 scanner is the most reliable tool. These devices plug into your car’s diagnostic port and communicate with the onboard computer. They can read trouble codes, explain what they mean, and clear the check engine light—all in seconds.
You can find basic OBD2 scanners for under $20 online or at auto parts stores. More advanced models offer live data, freeze frame info, and even Bluetooth connectivity to your smartphone.
Method 1: Using an OBD2 Scanner (Recommended)
This is the safest, most accurate way to reset the engine light on your 2014 Challenger. It ensures you’ve addressed the problem and gives you full control over the reset process.
Step 1: Locate the OBD2 Port
In the 2014 Dodge Challenger, the OBD2 port 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, often covered by a small plastic flap.
If you can’t find it, check your owner’s manual or look for a label that says “OBD” or “Diagnostics.”
Step 2: Plug in the OBD2 Scanner
Turn off the ignition, then plug the scanner into the OBD2 port. Make sure it’s fully inserted.
Step 3: Turn the Ignition to “On” (But Don’t Start the Engine)
Turn the key to the “ON” position. The dashboard lights should come on, but the engine should remain off. This powers up the car’s computer without starting the motor.
Step 4: Read the Trouble Codes
Follow the scanner’s instructions to read the stored trouble codes. Most scanners have a “Read” or “Scan” button. The device will display one or more codes, such as P0420 (catalytic converter efficiency below threshold) or P0171 (system too lean).
Write down the codes. You can look them up online or use the scanner’s built-in database to understand what they mean.
Step 5: Fix the Underlying Issue
Based on the code, take action. For example:
– If it’s P0455 (large evaporative leak), check your gas cap. Tighten it or replace it if cracked.
– If it’s P0300 (random misfire), inspect spark plugs and ignition coils.
– If it’s P0133 (O2 sensor slow response), consider replacing the sensor.
Only proceed to reset the light after the issue is resolved.
Step 6: Clear the Codes and Reset the Light
On your scanner, select “Clear Codes” or “Erase DTCs.” Confirm the action. The scanner will send a command to the car’s computer to delete the stored trouble codes and turn off the check engine light.
Step 7: Verify the Reset
Turn the ignition off, wait 10 seconds, then turn it back on. The check engine light should be off. If it’s still on, the problem may not be fully resolved, or there could be additional codes.
Step 8: Complete a Drive Cycle
After clearing the codes, drive your Challenger for about 30–50 miles under normal conditions. This allows the onboard computer to run its self-tests and confirm that the issue is fixed.
If the light stays off, you’re good to go. If it returns, recheck the codes—there may be a deeper issue.
Method 2: Disconnecting the Battery (Manual Reset)
If you don’t have an OBD2 scanner, you can try resetting the light by disconnecting the battery. This method forces the car’s computer to reset, clearing temporary memory—including the check engine light.
However, this method has drawbacks:
– It may not clear all trouble codes
– It can reset other systems (radio, clock, etc.)
– The light may return if the problem isn’t fixed
Step 1: Turn Off the Engine and Remove the Key
Make sure the car is off and the key is out of the ignition.
Step 2: Locate the Battery
In the 2014 Challenger, the battery is in the engine compartment on the driver’s side.
Step 3: Disconnect the Negative Terminal
Use a 10mm wrench or socket to loosen the nut on the negative (black) battery terminal. Carefully remove the cable and tuck it away from the battery so it doesn’t accidentally reconnect.
Step 4: Wait 15–30 Minutes
Leave the battery disconnected for at least 15 minutes. This allows the car’s computer to fully discharge and reset. Some mechanics recommend up to 30 minutes for a complete reset.
Step 5: Reconnect the Battery
Reattach the negative terminal and tighten the nut securely.
Step 6: Turn On the Ignition
Turn the key to “ON” and check if the check engine light is off. If it is, start the engine and let it idle for a few minutes.
Step 7: Drive the Car
Take your Challenger for a drive to allow the computer to relearn settings and run diagnostics.
Note: This method may reset other systems. You might need to:
– Reset the clock
– Reprogram radio presets
– Relearn the idle speed (some cars require a specific procedure)
Method 3: The Gas Pedal Trick (Not Always Reliable)
Some Dodge owners swear by a “gas pedal trick” to reset the check engine light. While it doesn’t work on all models or years, it’s worth a try if you’re in a pinch.
Step 1: Turn the Ignition to “ON” (Don’t Start)
Insert the key and turn it to the “ON” position. The dashboard lights should come on.
Step 2: Press the Gas Pedal 3 Times
Quickly press the accelerator pedal all the way to the floor three times within 10 seconds.
Step 3: Turn the Ignition Off
Turn the key back to “OFF.”
Step 4: Start the Engine
Wait a few seconds, then start the car. Check if the light is off.
This method is rumored to work on some Chrysler, Dodge, and Jeep vehicles, but it’s not officially documented by Dodge. It may clear temporary codes or reset the computer’s adaptive memory, but it won’t fix mechanical issues.
What to Do If the Light Comes Back On
If the check engine light returns after resetting, it means the problem wasn’t fully resolved. Here’s what to do:
Recheck the Trouble Codes
Use your OBD2 scanner to read the new or recurring codes. Compare them to the original ones. Are they the same? Different?
Inspect Related Components
Sometimes, one failed part causes a chain reaction. For example, a bad O2 sensor can lead to catalytic converter damage. Fix the root cause, not just the symptom.
Consult a Mechanic
If you’re unable to diagnose or fix the issue, take your Challenger to a trusted mechanic or Dodge dealership. They have advanced tools and expertise to pinpoint complex problems.
Don’t Ignore It
Driving with a persistent check engine light can lead to:
– Reduced fuel efficiency
– Increased emissions
– Engine damage
– Failed emissions tests
Tips to Prevent the Check Engine Light from Coming On
An ounce of prevention is worth a pound of cure. Here’s how to keep your 2014 Challenger running smoothly and avoid unnecessary warnings:
1. Tighten Your Gas Cap
After every fill-up, make sure the gas cap is snug. A loose cap is one of the most common causes of the check engine light.
2. Use Quality Fuel
Fill up at reputable gas stations. Low-quality or contaminated fuel can cause sensor errors and engine misfires.
3. Follow the Maintenance Schedule
Refer to your owner’s manual for recommended service intervals. Replace spark plugs, air filters, and oxygen sensors as needed.
4. Avoid Short Trips
Frequent short drives prevent the engine from reaching optimal temperature, which can lead to carbon buildup and sensor issues. Try to take longer drives occasionally.
5. Watch for Early Warning Signs
Rough idling, poor acceleration, or unusual smells can signal a problem before the light comes on. Address them early.
Final Thoughts
Resetting the engine light on your 2014 Dodge Challenger doesn’t have to be intimidating. With the right tools and knowledge, you can safely clear the light after addressing the underlying issue.
Remember:
– Always diagnose the problem first
– Use an OBD2 scanner for the most reliable reset
– Manual methods like battery disconnection can work but have limitations
– Complete a drive cycle after resetting
– Seek professional help if the light returns
By following this guide, you’ll keep your Challenger running strong and avoid unnecessary stress—and expenses—down the road.