1998 Chevy Malibu

You need to follow this to the T, or you'll scratch the computer security code and you'll have to get it reprogrammed at the dealership. Disassemble the steering column plastic housing, and on the bottom of the column there should be a grey wire, with a male-female wire connection. Put your keys in and start the car, make sure the Theft System light is off. Once ensured car is okay, unplug the grey wire under the column. Once unplugged with the car running, the computer will know that it's been bypassed. -Warning- If your battery runs dead, gets disconnected, or the car loses all battery power one way or another, the car WILL have to be programmed at the dealer. Reversal is the exact same. Start the car, let it idle, and reconnect the wire.