[osendott]

I have a '96 Skylark with the Passlock 1 anti theft system. Occasionally, the system would malfunction, and the car would stall with the "theft" light on. I replaced the lock cylinder, which involved letting the system "relearn" the code from the new lock. The dealer said to start the car after installing the new lock. When the engine died, wait ten minutes, turn the key off, then back on for ten minutes, and repeat two more times. This worked, and the car started and ran fine, but when I shut it off, it would not restart and the theft light flashed again. In a service manual, I found another relearn procedure that said to try to start the car and when it died, wait ten minutes with the key still on until the theft light stopped flashing and then start the car. This worked fine and the car would restart, but if I wait ten minutes before restarting, it wont start. I then tried letting it run for ten minutes after first starting it, and this seemed to solve the problem. I could even wait overnight and it would still start. But then if I start it and shut it down and try it again a half an hour or so later, it malfunctions again. It's as if it keeps going back into the "relearn" mode. Any suggestions? I've been considering an exorcist....