Correct identification of the problem is necessary. Most ignition system issues mask themselves as other problems. When the car doesn’t start, most people will try replacing the car battery, but that is not likely to help. In most cases, the engine cranks but doesn’t start. Perhaps, there’s no spark due to a faulty ignition module that’s preventing the engine from starting. In other cases, a malfunctioning key will fail to disable the immobilizer, which requires only the key to be replaced and not the whole system.
