Some cars will also have a diagnostic connector under the hood - mine has a huge connector which includes bus connections, and a couple other random things (like two connectors to reset the oil change reminder) įor the BMW 'Pacman' connector, connect the two data lines to the leftmost pin on your Car Kracker, and the Ground port to the rightmost pin. The rightmost pin gets connected to pin 5. The leftmost pin on the Car Kracker connects to pin 7 and pin 8 on the OBC port. Use a bit of jumper wire to connect each pin of the Car Kracker to these OBD pins It's in the car under the steering wheel, and looks like this To access the engine and transmission, you'll need to connect through the 'On Board Diagnostics' connector. The Trunk connection lets you access all the accessories in the car, but not the Engine Control Unit or Transmission Control Unit. Plug the 3 pin and 6 pin cables into your Car Kracker 2 - OBD2 Connector You'll find three cables - The 3 pin cable is your bus connection, and the 6 pin cable is the analog audio input to your stereo. Open up your trunk and explore behind the felt panel on the driver's side. Thanks Everybody!Ĭontinue on and I'll show you how to make your own!įirst, let's locate the data bus on your car 1 - The TrunkĮven if your car didn't come with a CD changer, it's nearly always pre-wired for it. The Car Kracker builds on many people's work - Many thanks to Dr_Acula for respinning RS232, Jochen Navcoder, the BMWCoders forums, Rayman for audio playback, e46fanatics, and bimmerforums. Changing preferences (like turning off the door gong) just updates the settings memory, the firmware doesn't change. Unless you want to update the firmware on your Engine / Transmission, It's pretty much impossible - the data bus is designed so that errant / malfunctioning devices don't break anything. The Car Kracker works with the following cars A few ideas Īuto Unlock: Unlock the doors when a specific Bluetooth device comes within rangeĭata logger + phone home: Automatically send car location and speed via SMS Everything is open source, so it be customized and the firmware can be updated via USB.
It plugs into a connector in the trunk and has several default modes built-in The Car Kracker is a microcontroller with a bit of hardware to talk to your car.
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