Again! (Page 3/3) Notorio JUN 13, 04:31 PM If the issue is Independent-Intermittent such as a so-so connection in the ignition switch then you should be able to do a Start cycle, turn the car off, then repeat 10 - 20 times or so and and that will give you an idea of how often the failure occurs (e.g. 10%, 30%, etc.) When the failure occurs grab your voltmeter and start measuring the strategic connections. Now if the issue is instead Dependent-intermittent, such as the engine needs to be run up to temp and then fully cooled down for the failure mode to develop, then it will be much harder to find.