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How do you reset the check engine light on a Subaru Forester?

If the check engine light on your Subaru Forester is illuminated, it's important to address the underlying issue as soon as possible. However, before taking your vehicle to a mechanic, you can try resetting the check engine light yourself. This guide will walk you through the steps to reset the check engine light on a Subaru Forester.


Steps to Reset the Check Engine Light



  1. Locate the Diagnostic Port: The diagnostic port, also known as the OBD-II (On-Board Diagnostics) port, is typically located under the dashboard on the driver's side of the Subaru Forester.

  2. Connect an OBD-II Scanner: Use an OBD-II scanner or code reader to connect to the diagnostic port. This will allow you to read and clear any diagnostic trouble codes that are causing the check engine light to illuminate.

  3. Read the Trouble Codes: The OBD-II scanner will display any diagnostic trouble codes that are stored in the vehicle's computer. Make a note of these codes, as they will help you identify the underlying issue.

  4. Clear the Trouble Codes: Once you have the trouble codes, use the OBD-II scanner to clear them from the vehicle's computer. This will turn off the check engine light.

  5. Disconnect the Battery: As an additional step, you can disconnect the negative (-) battery cable for about 30 seconds to a minute. This will help ensure that the check engine light stays off.

  6. Start the Engine: After reconnecting the battery, start the engine and check if the check engine light has stayed off.


If the check engine light comes back on after a short period of time, it's likely that the underlying issue has not been resolved. In this case, you should take your Subaru Forester to a qualified mechanic for further diagnosis and repair.


Reasons the Check Engine Light May Illuminate


The check engine light on a Subaru Forester can illuminate for a variety of reasons, including:



  • Faulty oxygen sensors

  • Malfunctioning catalytic converter

  • Issues with the fuel system, such as a faulty fuel pump or fuel injectors

  • Problems with the engine's ignition system, such as faulty spark plugs or ignition coils

  • Emissions-related issues, such as a loose or damaged gas cap


By resetting the check engine light and addressing the underlying issue, you can help ensure that your Subaru Forester continues to run smoothly and efficiently.

Can you manually turn off check engine light?


It completely disconnected from the battery. And leave it off for about a minute if you want to be extra safe leave it off for two minutes. But about one minute should be enough for most cars. Then.



Can I reset check engine light myself?


The on-off method is the equivalent fix for a vehicle's check engine light. It forces the computer to refresh its saved state through a reboot. Simply place your key into the ignition and turn it on for 1-2 seconds, then turn it off for 1-2 seconds. Repeat this step three or four times.



How to reset check engine light subaru forester?


The check engine light on your Subaru Forester will usually shut itself off if the issue or code that caused it to turn on is fixed. For example, if the cause of your check engine light coming on was a loose gas cap, if it's tightened, the light will turn itself off.



How do you turn off the check engine light on a Subaru?


Disconnecting the Battery

  1. Turn Off the Vehicle: Ensure your Subaru is completely off.
  2. Remove the Negative Terminal: Use a wrench to loosen the negative battery cable.
  3. Wait for 15 Minutes: This allows the vehicle's electrical system to reset.
  4. Reconnect the Battery: Reattach the negative terminal securely.



How long does it take for a Subaru check engine light to reset?


In most cases, your Subaru light will go off after about 20-40 miles.



How to permanently turn off the check engine light?


You plug an OBD-II scanner tool into it and, in most cases, out pops a code that tells you what the problem is. The scanner also allows you to clear the vehicle's internal code, which is what triggered the check-engine light. Do that, and the warning light will turn off.



How to clear engine code without scanner?


Drive Cycle

  1. Cold Start: Start the car after it's been off for at least 8 hours.
  2. Idle for 2 Minutes: Let the car idle in park or neutral for a couple of minutes to let the engine stabilize.
  3. Drive at a Steady Speed: Drive at a steady speed (around 55 mph) for about 15 minutes.



How do you reset the check engine light with a gas pedal?


Speed up to 55 to 60 mph at 75% throttle by slowly pushing the gas pedal down about three-quarters of the way. Maintain that speed for five minutes. Stop the vehicle and let it idle for 10 seconds. Turn the key off and wait two minutes for the ECM to power down.



Can I drive my Subaru with the check engine light on?


Your Check Engine Light will pop up yellow if it's in need of service but still safe enough to drive on over to a service center. However if your engine light pops up and it's red, pulling over and arranging for your vehicle to be towed to a service center is the ideal choice.



How to reset check engine light without disconnecting battery Subaru?


Insert the Key: Key in the ignition, but do not start the engine. On and Off Moves: Turn to “On” (no engine start) for a few seconds, then back to “Off.” Repeat About Three Times: After cycling it three times, on the fourth turn, actually start the engine. Check the Light: If luck is on your side, the light goes out.


Kevin's Auto

Kevin Bennett

Company Owner

Kevin Bennet is the founder and owner of Kevin's Autos, a leading automotive service provider in Australia. With a deep commitment to customer satisfaction and years of industry expertise, Kevin uses his blog to answer the most common questions posed by his customers. From maintenance tips to troubleshooting advice, Kevin's articles are designed to empower drivers with the knowledge they need to keep their vehicles running smoothly and safely.