Finding a short

Greetings to all,

I have a 2010 Honda Pilot Touring and my battery is being drained. I’ve performed a parasitic draw test as demonstrated by ETCG and, unless I’m missing one, I’ve pulled every fuse in the 4 fuse boxes. The draw was right around 2.58 amps through the entire test. I then disconnected the radio thinking the auto-theft feature was producing the draw. In the end, I took the car to the dealer b/c the battery is replaced for free, which they did after draining it. I was told their test should have found a short.

Here I am, two days after a new battery, with jumper cables and only 9 Amps on the battery. I can’t believe it’s a bad battery. I believe there is a short, particularly in the rear dome light. It has been acting funny lately, and since it’s a push-to-on type light, I can’t know if it’s on, or on when the door is open. So, I removed the fixture from the hood liner. While at work, I turned the dome lights “off” completely to see if there’s a drain.

Question is, apart from a parasitic draw test, how can I find a short in the electrical system. Esp if there is some sort of feature in the vehicle, like auto-theft, that makes a continuous draw on the battery thus making the draw test useless? Is there a better type of shop to go to for a diagnosis and discovery other than the dealership?

Thanks in advance!