Most GM vehicles come with the Passlock II ignition security system, an anti-theft device that disables the vehicle’s ignition system during most theft attempts. The most common failure mode of Passlock II is when the ignition switch no longer recognizes the resistor embedded into the key, causing a no-start condition.
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What does passlock 2 disable?
Most GM vehicles come with the Passlock II ignition security system, an anti-theft device that disables the vehicle’s ignition system during most theft attempts. The most common failure mode of Passlock II is when the ignition switch no longer recognizes the resistor embedded into the key, causing a no-start condition.
How do you know which passlock system you have?
Most PASSLock-equipped vehicles have a telltale indicator in the instrument panel. When a PASSLock-equipped vehicle is being started, the instrument panel warning light for PASSLock remains on until the engine starts.
How does GM passlock 2 work?
The PassLock system works when the lock cylinder moves a magnet past a Hall effect sensor. The sensor then sends a signal to the control, which GM has moved several times over the model years. The control then sends the code to the PCM. If the code is correct, the PCM will allow the car to start and run.
Can you disable passlock?
Leave the key in the ignition for 10 minutes. Turn the key to the “off” position — and leave it there for 20 seconds — after the anti-theft light stops blinking. This disables the Passlock system; it is ready to “relearn” your key.
How can I bypass pass theft deterrent system?
Hold the key for 30 seconds in the position. That will tell the system you have the right key, and it will enable you to be able to bypass the car’s alarm system. There are some cars that will recognize the key by just turning back and forth on the key inside of the door’s lock key cylinder.
Does passlock disable starter?
It prevents the car from starting with the wrong ignition key. Problems do occur with the PassLock system when your vehicle stalls and the theft system light illuminates on the dashboard. The vehicle will not start and the PassLock system will need to be disabled and reset before you can start the vehicle again.
How do I relearn a GM passlock?
To perform a relearn on a Passlock system, make sure there is a fully charged battery in the vehicle. The battery will be used for 30 minutes without the alternator available for charging. Connect a battery charger to the battery to ensure power is available while programming.
Can you disable PassLock?