What is a Battery Draw Check? I had to do some research when I took this picture, had some ideal, because i had a similar problem. So, what this is checking for is, when the engine is off, there is still a draw on the battery. Mine turned out that when a car back-ended mine, the trunk was always "on". Usually, this is caused by a short circuit or an electrical device that remains in the "on" position or energized, such as: a Trunk. An under-hood or a glove compartment light. #Battery #Engine #Ricks Auto Service