My 08 G6 shows error on speedo. The key does nothing. I do see the security lock flash up locked when I first turn key on. The battery is good the car will start by engaging #31 start relay will only run for 10 seconds and turn off. I think it is a security issue as I was pulling fuses checking for a ground that would drain my battery over about 3 or 4 days. Anyway this problem started after I reinsert Ed the fuses. Has been sitting a year and will still crank right up with relay. No one seems to have a clue to fix it. Approached several dealerships and since Pontiac is no longer in business they didn't want to work on it. Please Help I need the car for my daughter to get back and forth to work. She has no car and I can't buy one for her. Thanks in advance. I know one of you serious mechanics can help me solve this very long problem.