Code 1894 Now what?

[Lonestar10]

watch some of "south main auto"'s electrical diagnostic videos youll learn that even though the computers saying a part is a the problem most of the time its not but you need to get into some laborish electrical diagnostics to find the problem. the benefit you have over him is hes working on cars where all the components are smashed into a 5sq ft box called and engine bay where most all your electrical is out in the open. but he shows how to check communication twisted pairs, 5v references and all sorts of other electrical. take into consideration one of his biggest things that shows you might be able to get voltage on a wire but if suppose to be able to carry current he uses a 3.6amp headlight and probes in and sees if it lights up. a test light is only something like 350-700 miliamps and is much easier for a circuit to light up.