Delexiz

Hi I own a 2008 V6, 3.0l, 6 speed ford fusion. my check engine light is on and the anti theft security light keeps flashing while the car is parked whether the key is in the key lock or not. So I did an OBD diagnosis and these codes appeared V0100 and P0446. I tried to clear them but the V0100 did not clear. Now this V0100, lost of communication, ECM/PCM 'A' appears. WHAT SHOULD I DO? DO I NEED TO REPLACE THE PCM OR WHAT? PLEASE HELP. GOD BLESS YOU.