How to Test an Ignition Module When Your Car Won't Start

Figuring out how to test an ignition module is usually the first thing on your mind when your car suddenly dies in the middle of a busy intersection or refuses to fire up in your driveway. It's a frustrating spot to be in, especially because the symptoms of a bad module often mimic other problems like a failing fuel pump or a dead battery. But before you go out and drop a couple hundred bucks on parts you might not even need, you should probably take a few minutes to see if the module is actually the culprit. ...

February 28, 2026 · 7 min · Tex Marcucci