every month I'm breaking a sensor in my 2004 dodge. It's been about $300 every other month in mechanic fees. I've got two new ones right now. They got rid of relays and are using some kind of FET for some sensors, lights, switches. Some of the sensors are catastrophic (won't drive or drives extremely dangerous). For whatever reason dodge decided to get rid of the throttle cable and go with a two sensor and servo. If it fails, no mechanic will touch it. I took it out and cleaned it, and it just started working. Ghost in the machine.