How to disable anti-theft device on 1999 Pontiac sunfire

Anti-theft system isn't allowing it too .
The Passlock™ System is provided in order to prevent vehicle theft if the ignition lock cylinder is forced to rotate or the ignition switch is operated while separated from the ignition lock cylinder case. If starting is attempted without authorization from the Passlock™ System, the powertrain control module (PCM) will disable engine starting. Start disable may be in the form of fuel disable or starter disable, depending on engine application.
The components of the Passlock™ System are as follows:
• The ignition lock cylinder and key
• The ignition lock cylinder case, including the Passlock™ sensor
• The ignition switch
• The body control module (BCM)
• The security indicator on the instrument cluster
• The powertrain control module (PCM)

theft loc triggered worn ignition lock cylinder

I own a 04 Pontiac Sunfire with a 2.2 litre engine and the only way I know of to make your car start is to leave the key on for ten minutes then turn off ignition and then start it!

change the whole system(anti-theft system). this costly solution gives you the dealers warranty.
and/or
if you just want to disable the system permanently,cut the yellow wire on the steering colume.

most car anti theft systems can be disabled in the following way... (aka follow the link)

DISABLE ANTI-THEFT

no but what you have bad is your remote start brain box that is triggering the anti theft. i suggest taking to a auto electronic place for servicing or stop using remote start.

Turn the key to run position and leave it until the security light flashes then start the car.

Tell the guy to call the dealer and ask them how to override the anti theft system or reset it. when you disconnect the battery and lose power it kicks on the anti theft device and it won't get fire.

there is nothing special about your keys , no transponder . Has a hall effect sensor that is part of the ignition lock cylinder housing . You could get a key made at hardware store . woludn't make a difference .
The Passlock™ lock cylinder is a locking cylinder that turns a rotating magnet past a stationary hall effect sensor. The rotating magnet creates a resistance code (R-Code) that the cylinder sends to the instrument cluster. The Passlock™ lock cylinder interfaces with the instrument cluster through a 3 wire connection. The 3 wires have the following functions:
• Power
• Ground
• Data

Is the security light lit on the insturment cluster ? Does the vehicle start an run ?