Check Engine Light Blinking


The easiest way to diagnose and fix a blinking check engine light is to use a scan tool from Innova like the Innova 5110. This easy-to-use tool plugs directly into your car, reads the vehicle diagnostic system and reports back to you with any possible issues.

Trying to diagnose a blinking check engine light manually can be costly, as well as time-consuming. Any mistakes you make doing this manually means replacing parts, trips to the mechanic and even causing further damage.

Using the Innova 5110 means you can find the reason your check engine light is blinking, all presented in plain English – leaving you with the knowledge to fix your vehicle.


1 – Getting your vehicle’s data
A tool is required to pull information from the vehicle so you may view it. We recommend the Innova 5110.

2 – Download Innova App
Download the Innova RepairSolutions 2 app.

While the tool is able to display some data pulled from the vehicle, the app will be able to provide more information such as the repair and costs needed for your vehicle’s repair.

The app will work with your tool, so please wait for your tool to arrive or you may visit any of our retailers to purchase it today.

3 – Get Report
Setup your account with your tool by following the instructions here.

Then create the report following the directions here.

You should receive a report that appears similar to the one below.

Viewing the repairs and costs for your vehicle

1 – Tap the Engine Element
If your check engine is on, your report should display the red Engine element on your report.
Tap this element to view the details.

2 – View your repair
Your Engine report will display.

Providing you information on the code, the fix needed, and the parts needed for repair.

Your Options

At this point, you have two options.
1. You may attempt the repair on your own now knowing the repair needed, and the needed parts for the repair.
2. You may take the vehicle to repair shop now knowing roughly the cost of repair for your issue.

Innova does not recommend ignoring a check engine light even if the vehicle drives ‘fine’ as this can create the need for very expensive repairs later, such as replacement of a catalytic converter (which can cost on average $1,500), or even the replacement of the entire engine (potentially upwards of $5,000).

Maintaining your vehicle and addressing issues like a misfire quickly maintains vehicle safety, fuel economy and longevity.