Hello all,
My sister has an 04 grand prix GT that has been having some strange issues lately. At first she lost all power inside the vehicle, as in no lights on anything inside the vehicle, no gauges worked, nothing power inside the car except headlights and brake lights. Even the signal lights didnt work. The car would still start and drive. Now when I go to start it, the security light flashes crazy, and the fuel pump and ignition relays are cycling on and off like crazy. I measured the voltage on the ignition circuit when the car is trying to start, and it starts at 5 volts and drops down lower as it goes. Anyone have any clue what could be causing this? It seems to me like its a short in the ignition circuit somewhere. Could it be the ignition switch itself? Not too sure what else to narrow down. Any help is appreciated. Thanks!