How To Test An ECU With A Multimeter
How To Test An ECU With A Multimeter

ECUs are becoming more and more popular in cars. They’re responsible for things like engine operation, fuel injection, and emission control. But what happens when they go bad? You can test an ECU with a multimeter to see if it’s still functioning properly. In this article, we’ll show you how!

An ECU, or electronic control unit, is a computer that manages the engine and other systems in a car. When something goes wrong with the ECU, it can cause all sorts of problems. That’s why it’s important to be able to test an ECU with a multimeter.

A multimeter is an essential tool for testing electrical circuits. It can measure voltage, current, and resistance. By hooking up the multimeter to the ECU, you can test for continuity, shorts, and other problems.

To Test An ECU With A Multimeter

  • First, make sure that the car is turned off and the battery is disconnected.
  • Then, set the multimeter to the Ohms setting and connect the leads to the ECU.
  • If the multimeter reads “infinity,” then there is a break in the circuit and the ECU needs to be replaced. If the multimeter reads 0, then the circuit is complete and the ECU is functioning properly.

If you’re having trouble with your car, testing the ECU with a multimeter is a good place to start. It’s a simple and easy way to check for problems. By doing this, you can save yourself a lot of time and money in the long run! For more updates keep visiting

Previous articleOne Of The Biggest Cases Of Car Insurance Fraud Ever Seen
Next articleWhere To Connect Ground Wire Car Battery?
I'm David, and I love cars - especially writing about them! I'm the owner of, where I write car reviews and offer advice on car technical issues. My passion for cars started at a young age, when I would help my dad work on our family's vehicles. These days, I spend most of my time test-driving new models and researching the latest automotive technology. I'm always looking for a new challenge, so be sure to check out my website for the latest in car reviews and news. Thanks for reading!


Please enter your comment!
Please enter your name here