Any short within your car's wiring can cause draining issues. The alternator could also be a culprit. Battery usage seems infinite when you're driving down the road, and that perception is thanks to the alternator.

 

Ok so a "short" would cause a relay or fuse to blow. How can an ECU alternator (they have 1 way diodes) drain a battery? And lastly what does your interpretation of "infinite usage" regarding battery life mean exactly?


Here we go...... hahaha!