too much babble, and lack of clear explanation, while surface info is subject to interpretation... sorry, but this is mediocre, slow as thick molasses, ...statements about the battery going down are useless and incorrect. This is sucky at best... All components(resistance) of a circuit eat their own share of Voltage ... wires, connections, switches, corrosion, load... the load generally eating the great part of Voltage. When it's all done the node closest to the negative of the battery will only show a few m-volts. She keeps saying to place the lead on the negative post of the battery... NON-sense! Any ground location on the frame will do.The negative of the battery is connected by a thick wire to the frame directly(or to the engine which is connected to the frame) what if that connection is faulty!?!? one would not want to bypass it! ...and when shes is done, she does not tell you what the result of her testing concerning the issue with the low beams! LOL.
