05 Won't Start, dash lights blink once

I rechecked the AM2 fuse and found it blown. Got it replaced and the car starts. I left the engine to run for a long and realized that the HV battery charging rate is so fast. Also, the engine did not stop running even when the dash is showing nothing is running.
Eventually, I switched off the ignition and tried to restart but no light on the dashboard. Not even the door open light.

 

The AM2 fuse is blown because you have a shorted inverter pump. To fix the problem, you have to replace the inverter pump first, and then replace the AM2 fuse. If you replace the fuse without replacing the pump first, the fuse will just blow again (that's probably what happened and you lost all your lights again)