onboard security system

We just purchased a second hand car, the onboard security occasionally malfunctions not allowing the car to be started, can this be disabled?

The Passkey theft deterrent is an integral part of the operating system and cannot be eliminated ALTHOUGH, ....
The most common failure in these is the sensor in the ignition lock that reads the key pellet. That would mean replacing the ignition lock with a sensor included.



That sensor can be bypassed. You would need a digital ohmeter to measure the resistence of the pellet in the key. Now go to Radio Shack and buy a resister of the exact same value as the key pellet. Go to the base of the steering column and locate the two thin white wires that go up to the sensor. Cut the two wires and solder the resister between the two ends coming from the harness. This will permanently bypass the sensor but not the rest of the system.

Thank You very much. Not being the brightest bulb in the pack electrically speaking, I'll try to find someone who can help me measure the resistance and solder in the required resister.
Thank You again.