E. coli is a gram-negative bacteria, shaped like a rod. Escherichia coli is usually found in the lower intestine of humans and present in fecal matter. Most urinary infections are caused by inadvertent transfer of fecal matter into the urethra. The E.coli present in the fecal matter, and then infect the urinary tract.
With the engine off, pop the hood and find the battery. Detach the negative (black) battery cable from the battery. First loosen the nut with a combination wrench. A better tool to use would be battery pliers or a battery wrench. Twist and pull up on the end of the cable with your hand. If it does not come off easily you may want to purchase a battery terminal puller.
If the battery is known to be discharged or if the tester tells the operator to charge before testing again, the battery must be completely recharged. 1  It may not be required to turn a conductance tester off or on. 2  Connect the positive (+) tester clamp to the positive (+) battery terminal. 3  Turn on if needed.