So, who was the bright bulb of an engineer who thought sticking a relay box in behind the driver's side front wheel well of a Jeep was a good idea? Got up this morning to go to work and my Jeep would ...
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 ...