security light flashing car won't start on 1997 Chevrolet Lumina

never had a problem till I went out today to start my car.
I have lights,radio etc. the security light keeps flashing.disconnected the battery and hooked it back up still won't start. Do you have to wait a certain time before hooking back up the battery? Hooked a meter to the chip of the car key to check the resitor.What should the reading be on the meter ?

Asked by for the 1997 Chevrolet Lumina
0 answers