Ford Check Engine Light: How to Reset

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Ford Check Engine Light Causes and How to Reset

Having the check engine or service engine soon light come on in your Ford vehicle can be annoying and troubling. But don’t panic – these lights can have minor causes and often the issue can be fixed yourself. This guide will cover the common reasons for a Ford check engine light, how to diagnose the problem, and instructions for how to reset the check engine light in Ford models like the Ford Edge, Escape, Focus, Fusion, Explorer and F-150. Our highly trained Ford technicians can also get the job done for you if you want to schedule an appointment near Vancouver, WA.

What Does the Ford Check Engine Light Mean?

The check engine light, also known as the malfunction indicator lamp (MIL) or service engine soon light, indicates issues with your vehicle’s emissions system. A loose gas cap is a common cause, but it could also indicate problems with the oxygen sensors, mass airflow sensor, catalytic converter and more.

A flashing or blinking check engine light means there is a serious engine misfire issue that needs immediate attention. Get your Ford serviced right away if the check engine light is flashing.

Common Causes of the Ford Check Engine Light

Here are some of the most common triggers for the check engine light in Ford vehicles:

• Loose or faulty gas cap
• Faulty oxygen sensor
• Bad mass airflow sensor
• Failed ignition coils
• Problem with the EGR valve
• Defective catalytic converter
• Clogged fuel injectors

Issues with the evaporative emissions system, spark plugs, and worn brakes can also set off the Ford check engine light.

How to Diagnose and Reset Ford Check Engine Light

Before resetting the check engine light, it’s important to diagnose and fix the underlying issue first. You can retrieve the diagnostic trouble codes (DTCs) to point you towards the source. Here are the steps:

Read Ford Check Engine Light Codes

1. Locate the OBDII port under the dashboard on the driver’s side.
2. Connect an OBDII scanner to read the codes. You can purchase an inexpensive OBDII code reader online or at auto parts stores.
3. Write down the codes and look them up online or in the vehicle manual to identify the problem area.

For Ford models like the Escape, Focus, Fusion, Explorer and F-150, the common codes you may retrieve include P0171, P0174, P0420, P0430 and P0128.

Reset Ford Check Engine Light

Once the underlying problem is fixed, you can clear the check engine light codes and turn off the light. Here are a few methods:

• Use an OBDII scanner – Follow the scanner menu prompts to reset the light codes. This is the simplest way.
• Disconnect the battery – Disconnect the negative battery cable for 30 seconds to reset the Ford computer and turn off the light.

Keep in mind that just resetting the check engine light without addressing the problem will cause the light to come back on. The light is designed to alert you to issues needing repair to keep emissions within legal limits.

Get Ford Check Engine Light Fixed

Some check engine light issues can be simple fixes, but others require professional diagnosis and repair at a Ford service center. Especially if the light is flashing, have your Ford serviced immediately to prevent further damage.

The expert technicians at Westlie Ford in Washougal, WA have the cutting-edge tools and Ford OEM parts to properly diagnose and repair your check engine light. Schedule a Ford service appointment online or call (360) 208-8465 to get your Ford running smooth again!

Resetting the check engine light yourself can save money in minor cases, but a professional Ford technician has the expertise to get any emissions system problems fixed right the first time. Don’t ignore the check engine light – schedule service today at Westlie Ford to keep your Ford in top condition.

Reviewed By: Ryan Dickerson, General Manager

With over two decades of experience across all facets of the automotive business, Ryan Dickerson leads Washougal’s Westlie Ford dealership with an unmatched passion for Ford vehicles. Applying his expertise in sales, finance, management, and customer service, he provides Westlie Ford clients with personalized guidance on finding the right Ford cars, trucks, SUVs, and crossovers to fit their needs. Known for taking a genuine interest in each customer, he ensures car-buyers receive the small-town friendly experience Westlie Ford is known for, while still providing big-dealership selection and value. Along with doing what he can with helping the local community, Dickerson stays up-to-date on the latest Ford models and technology.