Vehicle make/model = 1996 Pontiac GrandAm Mileage = 120000 Engine size = 4 cilinder dash lights = anti theft light is on work done to repair = new fuel pump tech = JK question = anti theft light is on and car will start for 5 seconds and then die!! where is the anti theft device? I will change it, I have a parts car one year older, the same car!!
JK: This system uses a passlock key cylinder in the column, the instrument cluster, and the PCM. Any one of these could be at fault. The passlock cylinder is the most common. After replacement, the system would have to be relearned.
If infact the ignition cylinder is bad, you need to remove the tilt lever, remove the upper and lower covers. turn the key to the ON position, press the small release tab on the housing that the cylinder goes into, then pull out the cylinder. Install the new cylinder the same way. To re-learn the system,
Attempt to start vehicle, then leave the ignition ON. The THEFT SYSTEM telltale will flash for 10 minutes. When the THEFT SYSTEM telltale stops flashing, start the vehicle. Once the vehicle is running, the password is learned
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