Bypass PassLock Security System? (Perfect answer)

How to Disable a GM PassLock System

Leave the ignition key turned to the ‘On’ position after the vehicle has stalled and will not start.
Look at the dashboard and locate the theft system light.
Turn the ignition to the ‘Off’ position to disable the PassLock system, and wait for 20 seconds for the system to reset.

When you bypass the passlock system you’re basically taking the lock cylinder case sensor out of the picture. You do this by inserting a resistor into the circuit that duplicates the voltage drop that would normally be caused by the lock cylinder case sensor. What’s involved in a PassLock bypass?

Can you bypass the passlock system?

The Passlock system on a Vehicles is the anti-theft system. The Passlock system uses a recognition transponder in the ignition tumbler and a computer chip in the ignition key. While you cannot remove the Passlock system, you can disable it by tricking it into thinking the Vehicles had a malfunction.

How do I bypass anti theft module?

In order to deactivate the anti-theft system, car owners must press the unlock button located on the remote key. So it is suggested to use the key to unlock the door, then change the switch of ignition to “on” position.

Where is the passlock module located?

There is only one PassLock system. There is no sensor in the ignition lock cylinder, the Passlock sensor is in the ignition lock cylinder housing, and there is a magnet in the ignition lock cylinder.

Will disconnecting battery reset anti theft?

It is another way to solve the problem of anti theft system car wont start. Disconnect the positive terminal of the battery for a minute or two. It will reset the computer system and your car is likely to kick off.

How do you disable a factory car alarm?

A large number of factory alarms turn off once you put the key in the lock of driver’s or even passenger doors. You can also try a similar method – pressing the lock or unlock button on the remote fob. Unlocking the doors with the right remote fob will shut down most fabric alarms.

How do you turn off anti theft system on GMC?

How to Disable a GM Passkey System

Insert your GM key into the ignition, attempt to start the car, and let it stall. After it stalls, leave the key in the starter in the ‘On’ position.
Look at the ‘Theft Sys’ light blinking on your dashboard and wait until the light stays on without blinking.

How do you turn off anti theft on a Chevy Silverado?

How Do I Reset Anti-Theft System: Chevy Silverado?

Insert ignition key.
Turn it to the on position.
Attempt to start the engine.
Leave the key in that position until the security light stops flashing.
Once the light goes off, switch the ignition key to off.
Wait about five seconds.
Try to start the engine again.

Is there a fuse for the anti theft system?

It is usually located on the dashboard by the driver’s door, in front of your left knee. You may find the alarm fuse in this fuse box. If you do not find an alarm fuse inside of the car, look in the fuse box under the hood on the driver’s side. Your car model may or may not have additional fuse boxes.

How do I bypass immobilizer?

You can bypass the immobilizer by placing the key in keyhole hence deactivating the car’s immobilizer to remote start. The added security with Mobokey allows the security to be activated as soon as the phone moves away from the car, so you don’t have to worry about car security.

Does PASSLock disable starter?

The PASSLock system does not disable the starter; it only disables the fuel after the engine has started. If the vehicle will not crank, PASSLock cannot cause this condition. When a PASSLock-equipped vehicle is being started, the instrument panel warning light for PASSLock remains on until the engine starts.

What triggers PASSLock?

Passlock uses a coded lock cylinder that essentially stops the engine from running until the proper key is detected. When the key is inserted into the ignition, a magnet on the cylinder creates a signal to the ECM (engine control module) that essentially says everything is ok to start and run.

How long does it take for PASSLock to reset?

This will take approximately 10 to 15 minutes. Start the car immediately once the ‘Theft Sys’ light stays on steadily. Remember to not turn the key off. Your car will now reset the passlock system and start as usual.

How to Disable a GM PassLock System

Images of luxury cars and miniature toy cars provided by alma sacra on Fotolia.com. The first generation of the General Motors PassLock anti-theft technology was released in the mid-1990s. It keeps the automobile from starting if the wrong ignition key is used to start it. When your car stalls and the theft system light appears on the dashboard, there is a possibility that the PassLock system will malfunction. The car will not start, and the PassLock system will have to be disabled and reset before the vehicle can be started again.

Step 1

Leaving the ignition key in the ‘On’ position after the car has stalled and is unable to be restarted is recommended.

Step 2

Look on the dashboard for the theft system light, which should be visible. It will be flashing on and off at random intervals. Hold the light on for 10 to 15 minutes until the flashing stops and the light remains on.

Step 3

Turn the ignition switch to the ‘Off’ position to turn off the PassLock system, and then wait for the system to reset for around 20 seconds. Start the engine of the car. Your engine should continue to run normally. If this does not work, repeat the method three more times until it works. References Author BioJames Melzer began writing professionally in 2008 and has been writing ever since. He lives in Toronto, Canada, and works as a novelist and freelance writer. Digitalgasms published his feature writing, and Robodustrial published his journalistic work, both of which were published in the same year.

Information about the General Motors Passlock III Please take the time to read the following material carefully. If you are installing a remote start system on a General Motors vehicle manufactured in 1996 or later, follow these instructions. The VATS anti-theft system was replaced by the Pass-Lock system, which was introduced in 1996. This device, which is similar to the VATS system in that a resistor is present during the start cycle, performs the same function. In the PASSLOCKsystem, on the other hand, the resistor has been installed inside the ignition switch, rather than inside the key.

To use this function to remotely start an automobile, you must first disable the PASSLOCK security system.
The first option is to completely circumvent this mechanism indefinitely.
In order to temporarily circumvent the PASSLOCK, you may include relays into the system.
Vehicles affected (from 1996 and forward) include: Pontiac Sunfire and GrandAm Passlock-1, as well as Chevrolet Cavalier Passlock-1, are examples of NJ body automobiles.
Oldsmobile Cutlass Passlock-II1998 or newer Chevrolet Malibu Passlock-II1998 or newer All trucks, SUVs, and vans are included.
There are really two separate Passlock-II systems on the market today.
The relays displayed are conventional automotive 5 pin spdt relays, which may be purchased from IEI Electronics.

Accuracy is critical within 5 percent of the target.

Additionally, a Potentiometer (POT) can be used, which can be set to the same resistance as the resistor in the ignition switch.

1: Remove the top and bottom steering column shrouds from their positions.

These are THIN wires, not thick ones.

There is a BLACK (Thin) wire in this connector that is labeled ‘Bulb Test,’ and it indicates Ground when the ignition is in the ‘Off’ position, OPEN when the ignition is in the ‘Run’ position, and GROUND when the ignition is in the ‘Crank’ position.

Please do not start the automobile.

6: Remove a portion of the copper wire from the black wire without cutting it.

In order to ensure that you have the correct figure, you should measure more than once.

PASSLOCK-II bypass process is a procedure that allows you to bypass a lock.

Please follow the steps below to discover which system you have.

Orange/black (or black) and yellow are the primary colors.

3: Set the ignition to the ‘Run’ position (do not turn the key in the ‘Start’ position).

4: Push the key all the way to the ‘Crank’ position and then release it. Now read the value one more time. 5: If the value has changed, proceed using ‘Method 1.’ If the value has remained constant, go to ‘Method 2.’ These illustrations were provided by our friends at ALARMTEK AUTO ALARM.

GM Passlock Security Fix

This article describes how to bypass the’Passlock Sensor’on several models of GM cars.No soldering is required.You must perform all the steps.

The Problem

You attempt to start your General Motors automobile. The engine begins to run, but dies after one or two seconds, and the ‘SECURITY’light begins to blink intermittently. OR. You’re driving along when, for no apparent reason, the ‘SECURITY’light illuminates completely and remains illuminated. After you have shut down your vehicle, the SECURITY light will remain illuminated until you restart your vehicle. This is a prevalent problem on the following General Motors automobiles: Oldsmobile Alero from 1999 to 2004 Chevrolet Malibu from 1997 to 2003 Pontiac Grand Am from 1999 to 2004 The ‘Passlock Sensor,’ which is a component of the Ignition Lock Module, is frequently the source of the problem.

‘If the ‘SECURITY’light flashes or remains illuminated after attempting to start the engine, wait ten minutes with the key in the ON position until the light goes out.
Unfortunately, you will most likely have to go through the same process all over again a few of weeks later.
You will be guided through the methods necessary to circumvent the’Passlock Sensor’on a 2002 Pontiac Grand Am, as well as how to turn off the ‘SECURITY’light for good.
There are only slight variances in the methods used to remove the radio from the vehicle in order to access the wiring.
They are color coded as follows: black (analog return), white (power), and yellow (analog data).
By removing the radio from the dashboard and reaching through a hole in the radio compartment toward the steering wheel, the three wires may be reached and accessible.

Create a low-cost, simple circuit to take the role of the Passlock Sensor. Find the three wires that link thePasslock Sensor to theBody Control Module and replace the Passlock Sensor with our circuit. To ensure that our Body Control Module recognizes our new circuit, we must do the ‘Relearn’ Procedure.

Bypassing the Passlock Sensor – A Step-by-Step Instructional Guide Please keep in mind that many of the photos on this page may be expanded by selecting ‘View Image’ from the context menu when right clicking on the image.

Supplies Needed

Purchase a Mini Terminal Block from Radio Shack, as well as a box of 2200 ohm (2.2k-Ohm) resistors from Amazon. You will not require all of them. However, you will most likely be unable to purchase only one.

It is possible to order the components from Digi-Key Electronics if your local Radio Shack store has gone out of business. Listed below are links to the 2.2k-ohm Resistor and the Terminal Block, respectively. You will also require the following equipment:

Needle Nose Pliers
Small Screwdriver
Wrenches and Nut-Drivers
Sharp knife for cutting and stripping wires
Large Screwdriver
Needle Nose Pliers
Needle Nose Plires
Needle No

Building A Dummy Passlock Sensor

NOTE: IF YOU WANT TO AVOID BUILDING THE DUMMY PASSLOCK SENSOR, YOU CAN BUY ONE ON E-BAY. HERE IS THE LINKGM Passkey NO start BypassCut two terminals off the end of the terminal strip. Set the rest of the terminal strip aside.Takle one of the 2200 ohm resistors and bend the leads as I’m doing here. Then cut off the excess lead wire. (The color code for the resistor is three red bands.) When you’ve finished the above steps, you will have the two parts shown on the right side of the above photo.Insert the resistor leads into one side of the terminal block and tighten the terminal screws down on both the leads. Now you have created the module in the right side of the above photo. You will use this module to bypass your security system without having to solder anything.

Replacing the Passlock Sensor with Our Module

Important: Before doing any of the following procedures, disconnect one of the battery’s terminals from the battery. Take off the bezel that surrounds your radio. Using a big screwdriver or a solid dinner knife, pull it open until it comes away. As soon as you’ve gotten it unstuck, separate the wires that link the two lights on top of the bezel, as well as the cigarette lighter socket, from the vehicle. After that, you may put the bezel away. Remove the three screws holding the radio in place with a 5/16-inch socket and a ratchet.

Disconnect the wiring connection and the antenna wire from the radio and place it somewhere safe.

On the left side of the radio cavity, there will be an opening, through which you will be able to see the Ignition Switch. Three thin wires, possibly taped together with fabric tape, will be visible coming from the top of the ignition switch. They will be near the end of the switch where the key is inserted. If they are wrapped with black fabric tape, unwrap them and separate the three wires so you can determine which is yellow, black, and white.CAUTION: If a remote start or alarm system has been installed on your vehicle, the wiring has probably been modified. In that case, do not continue with this project. It will not work!

Make a clean cut across the yellow and black wires, leaving as much of the wire as possible on the ends that do not connect to the ignition switch. Insulate the ends of the two wires that connect to the ignition switch and reposition them so that they are no longer in the way. You have completed your task with them. Remove 3/8 inch of insulation from the end of the black wire and then twist the bare strands together to complete the circuit. Repeat the procedure with the yellow wire. Using your fingers, insert the stripped end of the black wire into one of the vacant holes on the terminal block of the Dummy Passlock Sensor (see illustration).

To install your Dummy Passlock Sensor, insert the stripped end of the yellow wire into the opposite terminal of the sensor (as shown in the photo) and tighten the screw to hold it in place.

Reconnect the battery cable to the battery terminals.

The 10 Minute Re-learn Procedure

The key should be inserted into the ignition switch before attempting to start the vehicle. It should start, then stall, with the ‘SECURITY’light glowing throughout the process. (In extremely rare instances, the automobile may continue to operate while the security light does not glow, but this is only possible if you are really fortunate.) Leaving the ignition in the ON position and waiting up to 15 minutes should resolve the situation. After relearning the security signal, the Body Control Moudle should be turned off, and the ‘SECURITY’light should be turned off.

The ‘SECURITY’light should be turned off during this period, and the automobile should continue to run.

It’s possible that you’ll have to try the more involved re-learn technique mentioned below.

The 30 Minute Re-learn Procedure

If the 10 minute re-learn technique described above does not successfully turn off your ‘SECURITY’light and allow you to start your car, there are three other components that might be the source of your difficulties.

Broken or corroded wiring or connections
The Body Control Module (BCM)
The Powertrain Control Module (PCM)
And other components.

Before attempting to replace the BCM or PCM, you should first try the 30-minute Re-learn Procedure, which is detailed in the General Motors Service Manual. It is presented here in its entirety. a thirty-minute period Learn the proper procedure. To complete this task, you will need the following tools: None

It is recommended that you do the 30-minute Re-learn Procedure stated in the General Motors Shop Manual before replacing the BCM or PCM. In its whole form, here it is. the time limit is thirty minutes Become familiar with the process Prerequisites for this project include the following tools: None

If nothing you’ve tried so far has resulted in you being able to start your car and turn off the ‘SECURITY’light, check to see if the wiring between the bypass module you made and your BCM is in good working order. The BCM is placed under the glove box, behind a kick panel that can be readily removed to get access to the computer system. It is held in place by two fasteners. Two screws are positioned about 2 1/2 inches below and to the left of the bottom left corner of the glove box door. The first is a hex-head screw.

Using your fingers, push the fastener out of the hole by pulling out on the middle of the fastener and then pulling out on the center plug of the fastener.

Remove all three connections from the Body Control Module and set them aside. Slide the Body Control Module to the right until it is no longer visible. It will need some work, but it will eventually come loose. Make sure the connections are not rusted by inspecting them thoroughly before use. If there is any water inside, shake the unit and listen for it. Assuming there is no problem with the Body Control Module, just slide it back into position, making sure it is securely fastened to its mounting bracket. Ensure that all three connections on the wire harness are clean and free of corrosion by visually inspecting the contacts on each connector. Providing that the vehicle started successfully before you began disassembly, it is fair to presume that the Body Control Module is in proper working order 90 percent of the time (There are no guarantees in life!) Reconnect the two outside connections on the Body Control Module to the rest of the system. The middle connection should be left dangling down. Measure the resistance between the pins A6 and B6 of the center connection with an Ohmmeter to determine the resistance. This is not the connector on the BCM, but rather the connector on the end of the wiring harness. The resistance of the resistor should be nearly the same as the resistance of the resistor that you put to the circuit. (about 2200 ohms.) It is likely that you have a wiring issue, and you will want a wiring diagram for your car in order to repair it. The wiring schematic for the 2002 Pontiac Security System may be found at the bottom of this post. To see the wiring diagram in its entirety, right-click on it and select ‘View Image’ from the context menu.

The information provided above is nearly all of what I know about the Passlock II Security system used in General Motors automobiles. If you are unable to resolve your ‘SECURITY’light problem using this information, I am afraid you will be required to take your vehicle to a General Motors dealership and pay a wheelbarrow’s worth of money to have them look at it. It may be beneficial to print off a copy of this page and bring it with you so that the General Motors mechanic can become familiar with the Passlock II system.

If you come across a dealer that does, please send me an email with the dealer’s name and the mechanic’s name.
The passlock circuits for the Grand Am in 2002 are as follows: The Grand Am circuit’s passlock circuit was modified for the 2002 season.
Copyright is valid from 2002 to 2022.
This page was last edited on October 10, 2021.

PERMANENTLY Disable and Remove GM Security Systems

Scouts from Utah’s Troop 980 are ecstatic when their ’92 Olds Toronado begins to come to life again. Thank you to the NEWROCKIES Full Bypass Module for making this possible!

How to FULLY bypass VATS Passkey and Passlock Security Systems in GM Cars.

Is it possible that the dreadedGM Security system has just attacked you? If you’re reading this, there’s a good probability that you’re:

Your automobile was doing admirably until one day it began acting strangely and unpredictably
Your vehicle’s security light is flashing, and your technician is at a loss as to what to do
. Alternatively, you may have just enjoyed a pleasant conversation with the dealer that came to a sudden stop when he quoted you about 1000$ for the repair. The fact that you require the return of your dependable automobile but cannot pay the dealer’s quotation has put you in a difficult position. Your computer is acting strangely
You’ve tinkered with it and changed many parts, but the problem will not go away. You’re perplexed because sometimes your automobile works flawlessly, and other times it starts and dies after about two seconds, or it won’t start at all
You’ve tried everything.

Relax! You’re in the right place.

Until one day, when it started suddenly acting strange, your automobile was in excellent condition. Your vehicle’s security light is flashing, and your technician is at a loss as to what to do. Alternatively, you may have just enjoyed a pleasant conversation with the dealer that came to a sudden stop when he quoted you about 1000$ for the repair work. The fact that you require the return of your dependable automobile but cannot pay the dealer’s quotation has put you in a difficult situation.

Some days your automobile works wonderfully, and other days it starts and dies after about two seconds, or it doesn’t start at all.

You are perplexed as to why your car behaves this way.

How NOT to bypass a GM Security System

Thousands of people are attempting to circumvent General Motors Security Systems in the incorrect manner. They just ignore a little portion of it (the key and lock), and as a result, they find themselves stranded in their automobile with the exact same problem far away from home and with no comprehension of why. As well as the fact that the nearest dealer is ready to pounce on them with a 1,000-dollar invoice.

The FULL Bypass solution from NEWROCKIES Inc.

Our PRO Bypass Module, which was developed by NEWROCKIES Inc. in 2008, was created for the explicit goal of circumventing malfunctioning General Motors VATS, Passkey, and Passlock security systems IN FULL. Our company has grown to become a well-known brand in the industry, with more than 1,200 repair shops in the United States and Canada regularly installing our modules on their customers’ vehicles. We continue to sell our modules to individual car owners because they are so simple to install on your own, often in less than an hour!

Our Guarantee

It will completely eliminate your car’s no-start problem, and it is guaranteed to do so for LIFE! High-quality design and manufacture, free technical assistance, a 30-day money-back guarantee, and a LIFETIME replacement warranty on our modules are all included With no strings attached. Get Yours Right Away

Bypass PassLock Security System

When the General Motors PassLock system fails, you might be trapped for an extended period of time. There are two choices available if your PassLock security system malfunctions: either fix it or circumvent it. Which is preferable? So, here are my ideas on the subject.

Also interesting

If you want to bypass PassLock

Nearly all PassLock system failures may be traced to a malfunctioning sensor placed within the lock cylinder casing. In order for you to be able to enter the key and rotate the lock cylinder, a magnet must pass by a sensor, which then transmits a voltage to the body control module (BCM). When a specific voltage is expected, the BCM is configured to anticipate it. If it gets the expected voltage, it sends a start signal to the PCM, which starts the computer. When you circumvent the passlock mechanism, you are essentially removing the lock cylinder case sensor from consideration.

What’s involved in a PassLock bypass?

A section of the dash must be removed if your lock cylinder is located in the dash, and a portion of the steering column must be removed if your lock is located on the column. You find a white blue wire and cut it with a hacksaw. You go through a series of steps using your DVOM to determine the voltage that should be applied to the BCM. After that, you’ll need to add a resistor to the circuit so that the voltage to the BCM may be duplicated.

If you want to FIX the PassLock system

The lock cylinder case sensor or the cables connecting the lock cylinder case to the BCM connection are nearly always the source of the problem. A new lock cylinder must be installed in order to correct the problem.

PassLock bypass pros and cons

The advantages are as follows: they are inexpensive. All you need are resistors. The disadvantage is that you lose all anti-theft features. Now is a good time to get your automobile stolen.

It takes a lot of effort. After that, you’ll have to take out a section of your dashboard. DVOM and resistor wiring must be understood in order to complete this task. Do you still want to go through with it? Go to YouTube and type in the words ‘PassLock bypass’ to see a video.

PassLock repair pros and cons

Advantages: You are in control of the situation and your vehicle’s anti-theft technology remains intact. Cons: It costs around $80 to replace the lock cylinder. It takes a bit more time and effort than just splicing in a resistor.

Rick’s advice on PassLock bypass

Personally, I believe you are insane for trying to circumvent a PassLock system when you can easily fix it for roughly $80 and preserve the anti-theft function. Purchase the faulty lock cylinder case and follow the on-screen instructions to reprogram it. I mean, how much easier can it possibly be? Rick Muscoplat has a new year’s resolution. Rick Muscoplat posted a blog entry on

Can’t Start My Car Because of the Passlock Security System

Passlock is an immobilizer that was first used in several General Motors vehicles in the mid-to-late 1990s. In the definition of an immobilizer, it is ‘an electronic security device installed in a vehicle that prevents the engine from starting unless the right key (or token) is present.’ Passlock, on the other hand, should be dubbed the ‘Great Immobilizer’ since it not only prevents criminals from entering with no keys, but it also prevents owners from entering with the correct keys.

How do I know if my car has Passlock?∞

VATS, Passkey, and Passlock are just a few of the security systems that General Motors has adopted, but if your GM comes with a key that doesn’t have a chip in it, chances are it’s a passlock.

How is Passlock supposed to work?∞

Passlock makes use of a coded lock cylinder that, in essence, prevents the engine from starting until the appropriate key is identified by the system. When the key is put into the ignition, a magnet on the cylinder sends a signal to the ECM (engine control module) telling it that everything is in working order and that the vehicle may be started and operated.

What goes wrong with Passlock?∞

For the most part, this means that there is an issue with the sensor. Some have speculated that the pins in the system are ‘tin’ coated and will oxidize as a result of exposure to air over time. Others claim that their system has been seized by the devil and requires the services of an exorcism. Please pick which of the two options seems most realistic. When the sensor malfunction first manifests itself, it is often represented by the system error code B2960. A red (or yellow) ‘security’ warning light will remain lighted, and the engine will either a) not start at all or b) start for a brief period of time before shutting off.

How to Fix Passlock for Chevy Vehicles∞

Leaving your key in the ignition in the ‘auxiliary’ position for around 10-15 minutes until the security light turns off will provide a temporary solution to the problem. After the light has gone out, you can try to restart the engine once more. Rinse, repeat, and weep some more. It is possible to get a more permanent solution by replacing the ignition lock cylinder or bypassing the sensor. Replacement of a cylinder with new sensors might cost as much as $450 when labor is included. Bypassing the sensor will violate any warranty, but as the vast majority of these vehicles are out of warranty at this time, this may not be a major worry for the majority of people.

How To: Bypass Passlock Security

First and foremost, I’d want to express my gratitude to Mickey for his dashboard removal instructions, which I followed when I regained my composure, and to Justin over on the grandamgt forums, who shared his wisdom with me. Remove the dash from your sentence. 1. Remove the side panel from the dash (the one at the door on the end of the dash) and the screw from the dash. 2. 2.Remove the lowermost panel on the driver’s side foot well and store it somewhere safe. Keep an eye out for the trunk release wires.

It is necessary to remove three screws from the end cap, one from the glove box, and one from the bottom portion of the dash by the gauge cluster.
To allow it to pass through the dash without destroying anything or harming the ignition switch, first remove the ring that surrounds the ignition switch.
6.Insert your key into the ignition and engage the parking brake.
8.While the car is still off, shift into low 1 gear and lock the wheels.
Do not allow the bottom part of the dash to extend beyond its original position.
For you, it should be able to pop loose.
How to get around the Passlock 1.

2.Unscrew the two screws that are keeping the ignition in place and remove the ignition keyswitch.

I attempted to remove the radio in order to get access to the area behind the ignition switch, but was unable to do so owing to a metal plate separating them.

The wires are color coded as follows: black, yellow, and white In order to get to them, you will need to cut back the black sheath.

4.Cut the yellow wire at its source.

Maintain a sufficient amount of power coming from the automobile so that you can solder to it.

5.DO NOT TRY TO CUT THE BLACK WIRE OFF.

This should be done in a location where you will be able to solder to it afterwards.

6.Check to make sure that none of the naked wires are contacting each other or bare metal, and then reconnect the battery to the power source.

Connect the opposite end of the lead to the other half of the yellow wire that is connected to the ignition switch (not the half going to the car).

Insert your key into the ignition and turn the key to the RUN position, but do not start the automobile.

Make an attempt to start the automobile.

Take note of the reading on the meter.

Because your automobile will very certainly have a different value, you must measure it.

Make certain that the wires do not come into contact.

If you connect the resistors in series, all you have to do is add the values together to get the total resistance.

For the 1.8k resistor, I think I used two 3.6k ohm resistors in parallel (twist the ends together) to achieve the desired result.

CALCULATOR FOR RESISTOR PARALLELS 10.Connect one end of the resistors to the black wire and the other end to the yellow wire that connects to the automobile using test leads (wires with alligator clips on either end) (not the yellow wire to the ignition keyswitch).

11.Reconnect the battery and make an effort to start the vehicle again.

Otherwise, I would think that your resistors are not of the right values, which would be a problem.

Disconnect the battery and the test leads from the computer.

Make certain that the joints are really secure.

If this happens, replace it.

This particular wire is no longer in use.

Make a connection between one of the resistor-connected wires and the yellow power cable coming from the automobile.

However, I understand that not everyone has simple access to shrink tube and a heat gun.

The other wire, which is connected to the resistors, is soldered to the stripped section of the black wire in step 16.

17.Insert the battery back in and try to start the car again.

In the event that it is feasible, slide the anti-friction sheath down over the wires.

Replace the ignition switch in its original location, making sure that the new wires do not come into contact with anything that will cause them to be severed.

Make sure you don’t accidentally pull any of the wires you’ve just soldered by mistake. 19.Reinstall the ignition switch and the dash, and you’re done! You’ve completed the project!

How To Permanently Disable GM PassLock System

The procedures provided here will allow you to disable the PassLock security system in a large number of General Motors vehicles.

A remote starter may be installed without the need for a bypass, saving you the money on a bypass. Avoid spending money on expensive repairs for a Pass Lock System that has already failed.

Requirements

An ohm meter with a digital display (optional) T25 Screwdriver is a kind of screwdriver (optional) Clips made of alligator skin (optional) Interior panels can be removed with a screwdriver or other tools. 1/4′′ Drive is a standard drive size. Socket with socket driver for 7mm or 9/32 inch sockets

Procedure:

The following tutorials differ depending on where the ignition is located: The steering column is situated on the dash, adjacent to the radio, and on the steering wheel. If your ignition is placed in the dash, you will need to remove the panels on the passenger underside (toe board) of the dash in order to access the ignition. The BCM (Body Control Module) is present, as are the connections that we will need to connect it to the rest of the vehicle. If your ignition is placed in the steering column, you will need to remove the kick panels on the driver’s side of the dash as well as the clam shell that surrounds the ignition and is held in place with torx screws.

Depending on the car, we will be looking for three wires that have been bundled together and whose colors are:

(Group1)Red/White	Yellow	Black
(Group 2)Red/White	Yellow	Orange/Black

The wiring harness is accessible by removing the necessary dashboard panels. In order to identify the Pass Lock 2 Wires, look for them coming out of the ignition or on the BCM, where they will be situated in the grey connection, Pin A6 will be a yellow wire and Pin B6 will be a black wire (they should be exactly alongside each other). The black wire should have a portion of its insulation stripped off so that you may test and solder to it afterwards. DO NOT TRY TO CUT THIS LINE. Now, carefully cut the yellow wire, being sure to leave enough on both ends to allow yourself some material to work with later. For testing purposes, strip both of the cut ends. Take your digital ohm meter and place the negative probe on the black wire that you had previously stripped back to its original length. Place the positive probe on the yellow end of the wire that connects the ignition to the positive probe. Alligator clips should be used here to assist the probes in grabbing the wires. Once the probes are connected, switch the ignition to the run position. Don’t even bother trying to start the car because it won’t start in the first place:). Take note of the ohm reading on the meter
This is the resistance that we must build in order to deceive the PassLock security system. Turn off the automobile
When picking a resistance, don’t be concerned with being perfectly accurate all of the time
Sometimes being near enough is sufficient. If you are unable to locate a resistor that is close to the value you obtained from the ohm meter, you can use a resistor ranging from 0.5K ohms to 13.6K ohms. With the probes disconnected, connect one end of the resistor to the black wire and the other end to the yellow wire that leads away from the ignition (goes to the computer). Apply black electrical tape to the end of the yellow wire that connects to the ignition, as we will no longer be using it. Make an attempt to start your automobile while the resistor is attached
If the resistance is correct, the car should start on the first or second attempt. If it gets started, it will be a success! Solder each and every one of your new connections. Tape your bare wires together and reassemble your dash, and you’re finished
Don’t get too worked up if it doesn’t start. You will be required to complete the factory relearn procedure (which is quite simple)

Learn the procedure in 10 minutes.

To begin, place the switch in the ‘off’ position. Try to start the engine, then remove the key from the Start position (the car will not start)
The security light positioned in the instrument cluster should illuminate for roughly 10 minutes after which the security light will switch off. To turn off the ignition, press the button for 5 seconds. Upon the next ignition switch transition from OFF to CRANK, the vehicle will be ready to relearn the Passlock Sensor Data Code and/or passwords.

Important When the car’s ignition switch is switched from OFF to CRANK for the second time, the vehicle learns the Passlock Sensor Data Code and/or resistance. Before attempting to start the car, be sure that the ignition is turned off. 12.When you’re through, solder all of your new connections together. Tape your naked wires together and reassemble your dash, and you’re finished.

Passlock System Bypass

More than a 4-pack of resistors from Radio Shack for $1.50 and a few minutes of soldering, you won’t need to purchase any other supplies. After much deliberation, I believe I have identified the primary source of the Passlock 2 system’s failures. It was badly planned, and it eventually breaks down. Some will wear out far sooner than others – perhaps even much sooner than they should – but wearing out is unavoidable. To put it another way, the Passlock 2 security system stops the fuel supply if the computer does not perceive that the keyed ignition lock cylinder is rotating lawfully as it should.

After sending a signal to the key switch, which is activated when the key cylinder is spun with the right key, the returning signal, or ‘code,’ is sent to the Passlock 2 module, which informs the car’s computer that everything is in working order.
A typical occurrence might be as follows: you walk out to your car, insert the key, turn it over, the engine cranks and starts, but then stops after about 2-3 seconds.
It is possible to reset your vehicle if you are fortunate enough to know how.
Then turn off the ignition and wait 10 seconds.
This can happen at the most inconvenient times, and it might take up to a month or more between occurrences.
Resetting the system is not the same as ‘relearning’ the system, which is what happens when you execute a reset.
After the 10-minute pause, the computer must either retrain how to accept the new value or learn how to accept the new ‘code,’ which it successfully accomplishes.

A change has occurred in the ‘code’ that is delivered to the module that notifies the car’s computer, and as a result, the module does not recognize the new ‘code’ and instructs the computer to switch off the fuel pump.

-Inadequate connections.

Cleaning and enhanced security have shown to be beneficial to a large number of property owners.

Everything is quite delicate.

All of the cleaning won’t make a difference.

To put it another way, the internals of the Passlock key component wear down over time.

You have two options: replace the entire system or BYPASS the system completely, which means your car may be hot-wired and stolen.

The cost at the dealership is around $1000 or more.

To bypass the system, locate and cut two wires between the module and the key switch, and then solder a resistor (5-10k ohms) between the two wires, as shown in the illustration below. After going through the ‘relearn’ procedure, there will be no more problems. The cost is around $2 and a 12 day.

Can you disable PassLock?

Asked in the following category: General The most recent update was made on May 12th, 2020. This technology makes use of a recognition transponder in the ignition tumbler and a computer chip in the ignition key to provide a secure lockout mechanism. While it is not possible to completely disarm the Passlocksystem, it is possible to fool it into believing that the Vehicles have experienced a failure. How to Reset the Passlock System on a General Motors Vehicle

To begin, insert your key into the starter and start your automobile as you normally would, then allow it to stall. Hold down the ‘On’ key until you are finished. For the avoidance of doubt, do not turn the key back to the ‘Off’ position. Wait until the ‘Theft Sys’ light on your dashboard does not flicker and remains illuminated. It will take roughly 10 to 15 minutes to complete this task.

As a result, the question becomes, where is the passlock sensor located? The PasslockIII method makes use of a transponder that is housed within the key’s plastic coating. The majority of the time, these keys have the letter ‘PK3’ imprinted on the metal blade near the plastic covering. Another issue is, what exactly is a passlock? A definition of an immobilizer is a ‘computer-controlled security device installed in a vehicle that prevents the engine from starting unless the right key (or token) is present.’ 1 Passlock, on the other hand, should be dubbed the ‘Great Immobilizer’ since it not only prevents criminals from entering with no keys, but it also prevents owners from entering with the correct keys.

The quickest and most straightforward method of bypassing the Passlock2 system is to connect a resistor between the passlock sensor wire and the ground reference wire (Figure 1).

They are often orange/black, red/white, and black in color.

Can’t Start the Engine Because of the Passlock System

Passlock is an immobilizer that was first used in several General Motors vehicles in the mid-to-late 1990s. In the definition of an immobilizer, it is ‘an electronic security device installed in a vehicle that prevents the engine from starting unless the right key (or token) is present.’ Passlock, on the other hand, should be dubbed the ‘Great Immobilizer’ since it not only prevents criminals from entering with no keys, but it also prevents owners from entering with the correct keys. Passlock makes use of a coded lock cylinder that, in essence, prevents the engine from starting until the appropriate key is identified by the system.

Passlock Light On Preventing Engine to Start∞

For the most part, this means that there is an issue with the sensor. Some have speculated that the pins in the system are ‘tin’ coated and will oxidize as a result of exposure to air over time. Others claim that their system has been seized by the devil and requires the services of an exorcism. The decision on which one is more correct will be left to you. When the sensor malfunction first manifests itself, it is often represented by the system error code B2960. In this case, the ‘security’ light will remain on, and the vehicle’s engine will either a) fail to start at all, or b) start for a brief period before shutting down.

A Temporary Fix∞

Bypassing the sensor will violate any warranty, but as the vast majority of these vehicles are out of warranty at this time, this may not be a major worry for the majority of people. The website NewRockies.com gives a way on how to completely defeat the PassLock mechanism in General Motors vehicles.

Bypass the Theft System Light?: Override Ignition Theft, I Need to.

If there is just little damage to the column, it should be easy to replace only the key cylinder in such case. A handful of alternatives are available to you. One is to utilize the vehicle identification number to obtain two new keys together with a lock cylinder from an authorized dealer or automotive locksmith. They will ask for the vehicle identification number (VIN), your identification, and the title to establish that you are the owner of the vehicle. After that, all you have to do is install the lock cylinder and test it to ensure that it activates the PassLock sensor.

The second alternative is to replace the lock cylinder with a new one that comes with new keys; however, the drawback of this option is that the new keys will not function with the rest of the car’s locks.

The scan tool would also inform you whether or not the sensor was operational.

It is necessary to retrain in the following ways: First, check that the battery is in excellent condition or that a charger is connected.

2-Make an attempt to start the engine while leaving the key in the ‘on’ position of the ignition.

4-If the light is still flashing after 10 minutes, it should be turned off.

Steps 1-5 should be repeated two more times for a total of three times.

If it begins and continues to run, the retrain process is complete.

If the housing and column of the key cylinder are in good condition, replacing the key cylinder is not difficult.

Then, in order to install the replacement, you must rotate the key in the housing to the run position while keeping the ignition switch within the column in the same position as when the original was removed.

After that, it should slip in and lock into place.

If you need to take it apart again, it will be much easier to do so if it is already partially apart.

If the relearn does not work, you will need to use a dealer-level scan instrument to finish the task successfully. Images (Click on the image to see it larger.) AT 10:32 a.m. on July 1, 2021, the first day of the year 2021 (Merged)

GM Passlock Bypass Kit ( No Start/Flashing Security Light Fix) 2.2k Ohm

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