<p style=”text-align: justify;”>Paul has told me that some circuits are always on/hot, like the headlights. So I know I need to turn my key to the on position, but not start the car, and retest those 8 other circuits to see if they light up with the light meter. He also said that the light indicates that the circuits are working. A non lit circuit will indicate a fault. Then I should trace the wires to and from that circuit to find the fault. Does everyone agree?</p>