Code readers have nothing to do with the engine having to run. In fact, a large percentage of diagnostic fault codes relate to things that cause no-starts. All you have to do is connect the reader to the data port under the steering wheel, then turn on the ignition switch and follow the menus to get to the codes.
If the engine runs normally for two seconds, it might be in theft mode.
Tuesday, February 10th, 2015 AT 11:42 AM