05 gt low fuel light

After filling up the low fuel light comes on, the t/c light comes on, tach does not work, temp gauge does not work and a/c shuts down. it does correct itself after start up but will conntinue again and again untill it reaches 3/4 tank or so. has anyone else had this problem or know the cure Thanks

It sounds like a short someplace. Have you tried disconnecting the electrical connector to the fuel pump assembly and see what it does? Possibly the fuel level sending unit based on when the faults occur. The only other component that I can think of otherwise would be a flaky ignition switch.