Hey guys really need your help here. I'm not a noob at all so this has me scratching my head. I just replaced my alternator and battery yesterday because I had warranty and the HFL kept draining my battery. I got my HFL back to working again using the heat method, test drove the car so that the alternator and battery did its thing for however long. A couple hours later I approached my car, lights blinked strong and unlocked strong showing no weakness/drain...I opened the door and got the welcome driver, but as soon as I turned the key everything went black. Battery had no charge so I figured it was the damn HFL so I disconnected it and gave the car a jump and sat for 30 min but still not any bit of power. Since then I got another new battery, cleaned all terminals and ground connections on the car, checked my fuses, and still nothing. I did the wiggle test while trying to unlock the car and nothing. I'm so worried that like my ECU is fried or something. Any suggestions? Please and thank you.

 

where are we at right now?
you have a new battery in?
and hfl is connected or disconnected?

 

Fusible link blown?