Useless To Troubleshoot Electrical Problems........
Without the owner having these two items and a basic level of knowledge. https://www.2carpros.com/articles/how-to-use-a-test-light-circuit-tester
Forum Discussion
+1 for the basic level of knowledge. It's easy for the uninformed to do damage to the electrical systems, or themselves. If you play around with the plumbing and mess up, water escapes and you get wet. With electricity it can be much worse...
