I have a 2000 ford mustang v6 and I think it’s in antitheft mode. We got the car for almost nothing because it would not start because they didn’t have the key so we had a lock cylinder and a locksmith come and program a key but the car still will not start. The driver side door won’t lock or unlock or the windows roll down. The theft light blinks 1-6 and the computer says can’t communicate with pcm we changed the ccrm and still nothing