Lost communication with the ECU ABS and TCM?

My car has been having a no start issue for some time now but, I was also able to get it started. However, a week ago after installing a new AFS right headlight, it was a no crank no start and has been that way ever since. I had noticed that the security lockout button would come on intermittently, and sometimes even my OBD II port wasn't reading and an error message came up. What I have also noticed is that the trunk lift gate is not working at all, and when I turn the key in the ignition, the gas gauge doesn't move up to where it is supposed to be at because I had a half tank left before the car stopped starting last Sunday. I am hoping I just need to do a hard reset of the battery, but it could be I need a new PCM or TCM. I am going to try changing out the fuses for the ECM, PCM and the TCM tomorrow. Any ideas? The battery is at 12.8 volts at resting so that's good. Both the alternator and the starter are still good.