While driving down the road (hwy or city) my Radio shuts off, my dashboard goes dead, and then sometimes my car shuts off. No power. I can't even get the hazard lights to work. After about 30 seconds I am able to turn the car back on. Radio asks for security code. I have totally lost electrical power. I had the ECU replaced last week and it seemed to fix the issue until yesterday where it occurred 5 times. I don't get any diagnostic codes from the car, so I am kind of at a loss here. Any help would be greatly appreciated.

 

It could still be an ECU, connector, wiring, or ground issue or possibly even be related to the driver's side fuse box. The ECU is located behind the center console, check that the connectors are tight. Also, look at the battery and alternator cables.

The 2005 Accord (yours is a 2004) had safety recalls for the driver's side fuse box and the fuel pump relay (from your symptoms, I don't think it is the fuel pump relay though).; but, I am throwing it out there for informational purposes.

http://dvpatel.homelinux.com/forumfiles/SB/A05-014.PDF

http://dvpatel.homelinux.com/forumfiles/SB/A07-020.PDF

 

Thanks, I'll keep trying stuff out. Any other suggestions? Some people are saying it could be the alternator...

 

It is def not the alternator, you can remove the alternator from the car and the car will continue to run until the battery went dead.

 

I would check or change the battery cables and look for any connection with corrosion.