What is a pass key III?


The Passkey III anti-theft system uses a transponder inside the head of the ignition key. The exciter inside the ignition lock cylinder energizes this transponder when the ignition switch is turned on. The transponder transmits a unique signature to the theft deterrent control module.

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Regarding this, what is a pk3 key?

GM has first used transponder chip keys in 1997, but were slow to phase the technology in. Today, GM uses transponders on most of their models. Most GM original transponder chip keys have either a PK3, PK3+ or just a “+” stamped on them. GM also uses a technology called Pass Lock on some cars from 1996 to 2007.

Additionally, why would my security light come on? On your particular vehicle the security light staying on as the vehicle is running is an indication that the security system has failed and is disabled. It is common for a security light to come on after battery dies because the computer may lose its programming to the key.

Secondly, what is pass key security?

Some GM vehicles come with a factory-installed anti-theft system commonly referred to as the passlock or passkey. When this happens, the security (theft sys) light randomly illuminates on the dashboard, and the car will not start.

How do I reset my ignition key?

Insert the ignition key and turn it to the on position and then attempt to start the engine (crank over), the engine wont start. With the key still in the run position wait 10 minutes and the security light should blink and then go out. Turn the key off and wait 5 seconds.

When did they start making chip keys?

The basic purpose of transponder key systems is to eliminate auto theft, and therefore it is central to your car’s security system, or anti-theft system. Due to the high number of stolen Corvettes, GM was the first US auto manufacturer to introduce a chip key on the 1985 Corvette.

How do I know if my car key has a chip?

Contact a locksmith. Give the locksmith the make, model and year of your car, and they should be able to find out if your car key has an electronic chip. Assume that your car has an electronic chip if it is a model made after 1995.

When did GM start putting chips in keys?


What is a GM vats key?

The VATS acronym stands for Vehicle Anti-theft System and is also known as PASS-Key or Personal Automotive Security System. Each VATS key has a resistor embedded in the key-blade, and each resistor has 1 of 15 possible resistance values. The resistance value of a VATS key is also called the VATS code.

Does a 2005 GMC Sierra have a chip in the key?

This key blank for your 2005 GMC Sierra does NOT have a transponder chip in the head of the key, so it does not need any programming. Once the key for your 2005 GMC Sierra is cut, you can start using it.

What is a GM transponder key?

This is a TRANSPONDER KEY. Most modern automobiles have keys with transponder chips hidden inside the plastic head of the key. When a key is inserted into the ignition lock cylinder and turned, the car’s computer sends a radio signal to the transponder.

How do you bypass anti theft system?

Turn the key to unlock your car door, but don’t release it. Hold the key in this position for 20 to 30 seconds. This lets the system know you have the correct key, and it can allow you to bypass the alarm system. Some vehicles recognize the key simply by turning the key back and forth in the door lock key cylinder.

How can I bypass passlock?

The easiest way to bypass the Passlock 2 system is to place a resistor between the passlock sensing wire and the ground reference wire. To find these wires, look for three wires that at some point are wrapped together, coming from the ignition barrel. Usually, they are orange/black, red/white, and black.

Does passlock disable fuel pump?

Passlock disables the fuel injectors if the PCM does not receive a valid password from the BCM for 10 minutes. The BCM, PCM, and ignition lock cylinder case contain codes. Since the warning lamp stays on it indicates there is an issue. Normally the light should only stay on for 3 seconds while it runs a system check.

How do you bypass a car alarm system?

Turn the key to unlock your car door, but don’t release it. Hold the key in this position for 20 to 30 seconds. This lets the system know you have the correct key, and it can allow you to bypass the alarm system. Some vehicles recognize the key simply by turning the key back and forth in the door lock key cylinder.

How does passlock II 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.

How do I reset my passlock 2?

How to Reset the Passlock System on GM Cars
  1. Insert your key in the starter, start you car as you usually would and let it stall. Keep the key in the “On” position. In other words, don’t turn the key back to the “Off” position.
  2. Wait until the “Theft Sys” light on your dashboard stays on without blinking. This will take approximately 10 to 15 minutes.

How do you bypass a key with a chip?

If you would like to bypass your transponder key every time you start your vehicle or are installing a remote starter, consider bypassing the ignition security.
  1. Take your transponder key and place the plastic head in a pair of pliers.
  2. Place the key’s head near the ignition with the hot glue gun.

How do you bypass the key on a Honda key?

Simple Bypass
  1. Take the head off of your transponder key by pulling it gently in the opposite direction of the key’s blade.
  2. Mount the key’s head with either velcro or hot glue underneath the steering column as near to the ignition as you can get it without its being readily visible from above.

How does the VATS system work?

VATS is a General Motors (GM) security system that has a resistor embedded in the blade of the key. If the correct resistance is read, the VATS Module, through a relay, will allow the starter to crank the engine and also send a signal to the ECM to allow the operation of the fuel injectors.

What mean vats?

Video-assisted thoracoscopic surgery (VATS) is a type of thoracic surgery performed using a small video camera that is introduced into the patient’s chest via small incisions. The surgeon is able to view the instruments that are being used along with the anatomy on which the surgeon is operating.

How do you measure vats resistance?

To do this yourself you need to grab your Multimeter, we prefer ones with a digital readout for easier reads.
  1. Turn the dial to the Ohms section in the 2K setting.
  2. Grab the black and red probes and make contact with each side of the black VATS pellet.
  3. Record the reading the multimeter reads and write it down.