"It turns out some engineer at Jeep thought "Hey, let's put a control relay box in the left front wheel well on a Jeep" was a good idea. Water got into the relay box and corroded contacts to the point ...

We all know you can build a computer out of relays, and if you’re a regular reader of Hackaday, you’ve probably seen a few. Actually designing and fabricating a computer built around relays is another ...

The powertrain control module (PCM) in your Jeep Wrangler – often referred to as your engine’s “computer” – acts as the brain of your vehicle’s engine. More specifically, the PCM in your Jeep is ...