Pontiac Forum - Pontiac Discussion Forums - Flash flash blink blink 1999

1999 PONTIAC GRAND AM
Engine size 2.4 L4
Transmission AUTOMATIC
Mileage 160000
Fuel Injection
ABS brakes
Cruise control CRUISE CONTROL, A/C, POWER STEERING[/ol]

My 1999 Pontiac Grand Am SE 2dr 4cyl automatic transmission is messing up. When I open a door, bump in to it, turn it on or do anything that involves electricity the car lights start flashing and clicking and if I hadn't turned of my alarm horn it would beep sometimes. It will even start flashing when I come to a stop light, and the engine is still running. It does this every time! My pass lock light on the dash is constantly flashing. This all started happening a few months ago when I let my friend drive the car and the battery just died, I replaced the battery but we accidentally grounded it when we hooked it up (positive to negative and negative to positive, big spark) Did I completely mess it up and is there anyway to stop the flashing and clicking? It is driving me crazy. I have to turn my headlights on during the day so people will not think I stole the car. Is this my passlock? I can start my car every time and the passlock light is FLASHING not staying on constantly. Can I expect my car to stop starting any day? We tried to cut the yellow wire attached to the ignition but it didn’t do any thing because I can start it every time so I doubt it is my ignition/ignition sensor. Please help I don’t have the money or want to spend it on a dealer fixing it. I keep reading about installing a remote start to bypass the passlock but my car STARTS. What do I do?