GM VATS Anti-theft System? (Solution)

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  • VATS (Vehicle Anti Theft System) was introduced by GM on the 1986 Corvette because the Corvette had become the number one target of car thieves. Corvette thefts dropped so impressively after VATS was implemented that GM expanded the system in 1988 to the Camaro, Firebird, and Cadillac Seville. Before long, VATS was standard equipment on all Cadillac vehicles and on many other Chevrolet, Pontiac, Buick, and Oldsmobile vehicles. As the system was added to more vehicles, GM began using the terms

How do I disable GM anti-theft system?

How to Disable a GM PassLock System

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

How does the VATS system work?

VATS keys are essentially the first electronic keys and, as such, provide a much-needed improvement in vehicle safety from their predecessors. VATS keys have resistors embedded in them, and when someone inserts a VATS key into the ignition of their vehicle, an electrical current runs through the resistor inside.

How do I reset my GMS vats?

GM VATs Relearn

  1. Insert a master key (black head) into the ignition switch.
  2. Turn key to the “ON” position without starting the engine.
  3. Wait for 10 minutes or until the security light turns off.
  4. Turn key to the “OFF” position for 5 seconds.
  5. Turn key to the “ON” position without starting the engine.

What is the PASSLock security system?

The PassLock system was designed to prevent vehicle theft by disabling fuel to the engine if attempts are made to start the vehicle without the correct bitted key. PASSLock increased the level of security while retaining the ease of service and costs offered by standard ignition lock systems.

What is the vats on my truck?

Vats= vehicle anti theft system, passlock is the style of vats these truck’s use, and the vtd is the vehicle theft deterrent module that controls everything. If the light is on, it’s because the vtd senses a problem.

What vats GM?

What is VATS? VATS ( Vehicle Anti Theft System ) was introduced by GM on the 1986 Corvette because the Corvette had become the number one target of car thieves. Corvette thefts dropped so impressively after VATS was implemented that GM expanded the system in 1988 to the Camaro, Firebird, and Cadillac Seville.

How do you bypass Chevy anti-theft system?

Method 3: Insert the key into your car’s door Step 2: Turn the vehicle key to unlock the car door without releasing it. 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.

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 can I bypass pass theft deterrent system?

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 do I activate vats?

To bring up V.A.T.S., press Q on PC, L1 on PS4, or LB on Xbox One. While time is slowed, select one or more of the numbered boxes that appear around the target to fire at those areas. The numbers indicate the percentage of chance you have for successfully hitting those parts.

What does vats stand for?

Video-assisted thoracoscopic surgery (VATS) is a type of surgery for diagnosing and treating a variety of conditions involving the chest area (thorax). It uses a special video camera called a thoracoscope. It is a type of minimally invasive surgery.

Understanding GM VATS

Understanding GM VATS (PassKey)This system seems to cause much confusion, stress, and misery.Hopefully, this will help elevatesome of that.VATS stands for Vehicle Anti-Theft System. It iscommonly referred to as PassKey.Later versions include PassKeyII, PassKeyIII and PassLock (whichuses no resistor ‘pellet’).GMfirst introduced VATS in 1985 on the Chevrolet Corvette, and afterproving successful, was laterintroduced in other models in later years.Lets break it down evenfurther:Operation: Operation is fairly simple, but lets discuss what allmakes up the PassKey system.The most obvious part is the key.The ignition key as a little’chip’ in it.This is a resistor’pellet’.There are 15 possible resistances, therefore 15 differenttypes of keys each with adifferent resistance.This reduces the likelihood of a potentialthief from having the correctresistance resistor on hand.Then you have to have a special lockcylinder to ‘read’ the key.Iuse the term ‘read’ loosely, because it does anything but read thekey.I will explain more later.Next is the VATS module.It does most of the security work.It isthe ‘brains’ of the system.The module is what actually ‘reads’ the resistance, but has to do itvia the contacts in the lockcylinder and the related wiring.Think of the module as aMultimeter, and the wires and contactsthe Multimeter Leads.The module reads the resistance anddetermines if the resistance is thecorrect value.The module will go into several modes, depending onwhat the module sees.Thereis ‘Tamper’ ‘Normal’ and ‘Fail Enable’.Normal: Normal is when the correct resistance is seen duringcranking and the module will groundthe Start enable relay, and send a ‘Fuel Enable’ signal to the ECM.This basically ‘turns on’ theinjectors.If the Fuel Enable signal is lost or not sent, theinjectors will never pulse.The signal is aunique ‘Pulse Width Modulated’ signal, which is a series of rapidlyswitched ‘on’ and ‘off’voltages that would be near impossible to duplicate. Once the relayis grounded, voltage is allowedto the ‘S’ terminal of the starter, and the ECM is told to pulse theinjectors and the car starts.Tamper: This mode happens when the vehicle is cranked, and theresistance value as seen by themodule is not the same as the value stored in the module. When thishappens, the module shutsdown for 4 minutes.Even if the correct resistance is then seen,the car will not start for the 4minute ‘time-out’.The security light will also illuminate for the4 minutes.The Start EnableRelay will not energize and the Fuel Enable signal will not be sent.HINT: if the key pellet is dirty,it will put the module in the ‘Tamper’ mode.If your car fails tocrank/start and the security lightcomes on, try cleaning the pellet, wait 4 minutes, and try again.Fail Enable: This mode is to help keep the motorist with the rightkey from being stranded.If afailure happens to the PassKey system AFTER a valid start, this modeis initiated.It allows thevehicle to be restarted, even with a failure present.The securitylight will remain illuminated to letyou know a failure is present. However, this also means that the carcan be started w/o a key, andis vulnerable to potential thieves.Lets take a look at the basic setup.Diagnosis:If your car doesn’t want to crank and the security light comes on,here are a few things that mayhopefully get you back on the road:First, make sure the pellet is clean.A dirty pellet will give ahigher resistance than what the VATSmodule expects to see, and assumes it is the wrong key.Check all of your fuses.If a fuse is blown or missing, it cancause a security problem.Obtain a multimeter and measure the resistance of the key.Thenremove the hush panel on the drivesside of the dash and find the wires that go to the lock cylinder(usually two thin white wires, sometimeswith orange insulation around both).Now measure the resistance atthe two wires with the key in theignition.If it doesn’t come within a few Ohms of the original keyresistance, the lock cylinder is bad.If the resistance comes up OK, measure it again, this time whilemoving the key from ‘Off’ to ‘crank’several times.Any fluctuation in resistance means a bad lockcylinder.This is the most common causeof failure.The wire are anchored to the stationary steeringcolumn, but attached to a rotating lockcylinder and over time, the wire breaks inside the insulation andusually becomes ‘open’ in the crankposition.This is read by the module as an incorrect resistance.These are the basics of VATS diagnostics.If the problem is notfound, it will have to be taken to areputable repair facility.Bypassing:50 hertz signal to PCM theft fuel enable pin.

GM VATS Anti-theft System

It was on the 1986 Chevrolet Corvette that the General Motors Vehicle Anti Theft System (VATS) made its debut. Because it had become a popular target for auto thieves, General Motors was under pressure to develop an anti-theft technology for this particular vehicle. Thefts of vehicles equipped with VATS decreased considerably once the system was implemented. As a result, General Motors began using the technology on the Camero, Pontiac, Buick, and Oldsmobile models in 1998.

VATS becomes PassKey

When General Motors changed the name of their anti-theft system from VATS to PassKey I and PassKey II, it was a clear indication that the device relied on a KEY for identification. This is an essential distinction since the PassLock of the following generation did not rely on the key in and of itself (which turned out to be a big mistake).

The VATS and PassKey

In order to function, the VATS and PassKey I and PassKey II systems rely on an embedded resistor chip (pellet) that is positioned between the machined grooves and the head of the key in the shank of the key. The electrical contacts in the lock cylinder made contact with the resistor pellet, and the system detected the voltage drop generated by the pellet as a result of the interaction. The system checks for a pre-programmed voltage drop that was encoded into the device when it was built at the manufacturing facility.

How VATS and PassKey I and PassKey II prevents theft

A no-start signal will be sent to the PCM if the system detects a current drop that is more or less than the predicted value. The PCM will then prohibit the engine from starting for a period of several minutes. An indicator will illuminate on the dashboard, informing the driver that the engine has been turned off. The VATS, PassKey I, and PassKey II systems all have a large time delay of several minutes, which is a significant characteristic. The entire purpose of the delay is to frustrate automobile thieves who make the mistake of inserting the incorrect key.

Vehicles equipped with VATS, PassKey I, and PassKey II technology were the least stolen.

The VATS, PassKey I and PassKey II Keys

The resistorpellets on the first generation keys were numbered 1 through 15 and were created with 15 distinct resistorpellets. The resistance of the first key was the lowest, while the resistance of the fifteenth key was the greatest. In actuality, however, the low resistance of the 1 key resulted in read mistakes in the field due to the low resistance. For the 1989 model year, General Motors removed the 1 key. The VATS, Passkey I and PassKey II keys are being evaluated for their worth by measuring their value.

Refer to the chart to translate the resistance (Ohms) to the appropriate key value and vice versa.

Refer to the chart below to determine whether or not the resistance corresponds to the key number.

VATS Pellet Identification Number VATS10.402KNoneVATS20.523KCN or YTVATS30.681KFW or JBVATS40.887KEJ or GPVATS51.130KKA or KP or URVATS61.470KN5 or Q3VATS71.870KKH or UNVATS82.370KXB or ZBVATS93.010KGA or QMVATS103.740KNP or XJVATS114.750KFY or JHV

Duplicating a VATS, PassKey I or Passkey II key

To simply add a key to the system, simply measure the resistance value of the key, match it to the appropriate blank, and then cut the key from the blank you used. Alternative: If the key code has been imprinted into the original key, simply match it to the new key and you won’t be need to take any measurements. You will need to determine two things if you have misplaced the key: what key resistance value has been set into the theft deterrence module so that you can match the new key to it and what key cutting sequence has been put into the lock cylinder to match the lock cylinder.

  1. Alternatively, a replacement lock cylinder can be purchased.
  2. There are only two options for accomplishing this.
  3. Connect an interrogator to the computer.
  4. Alternatively, an interrogator may be purchased at Lockmasters.com.

What the VATS, PassKey I and PassKey II Security Light means

The anti-theft notice light was utilized in numerous different configurations by General Motors. Some refer to it as SECURITY, ANTI-THEFT, or simply THEFT. If the light does not illuminate, the system is not operational. If the light illuminates and is illuminated during the time the ignition is in the RUN position, the system is operational and the key pellet has been read, but the value read is incorrect. To test an alternative key value, turn off the IGN and wait 3 minutes before turning it back on.

  1. If the light stays on for an extended period of time before turning off, the system is not operational.
  2. An open door may be indicated by the fact that the light BLINKS.
  3. It is possible that the system is in time out mode if the light turns on and continues to illuminate even after the IGN has been switched off.
  4. 2018 Rick Muscoplat is a professional musician.

How does the GM VATS system work?

Asked in the following category: General The most recent update was made on March 23rd, 2020. VATS is a security system developed by General Motors (GM) that includes a resistor inserted in the blade of the key. If the right resistance is detected, theVATSModule will enable the starter to crank the engine and will also send a signal to the ECM to allow the functioning of the fuel injectors if the resistance is found to be correct. The PassLocksystem is activated when the lock cylinder pushes a magnet past a Hall effect sensor, which detects the movement.

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After that, the control transmits the code to the PCM.

Upon receiving a valid code, the PCM will allow the vehicle to be started and operated. Second, how do you determine the resistivity of a vat? Obtain your Multimeter, which we recommend having a digital readout for simpler reading, in order to do this task.

  1. To access the Ohms area, turn the dial to the 2K position. Take the black and red probes and make contact with each side of the black VATS pellet with each of the probes
  2. Take note of the reading that the multimeter gives you and write it down

In the same way, many wonder what the abbreviation vats means in the automobile industry. VATS is an acronym that stands for Vehicle Anti-Theft System. It is referred to as PassKey in the industry. PassKeyII, PassKeyIII, and PassLock are examples of later variants (which uses no resistor ‘pellet’). VATS was initially launched by General Motors in 1985 on the Chevrolet Corvette, and after proving to be a success, it was later expanded. What is the time it takes for the passlock to be reset? It will take roughly 10 to 15 minutes to complete this task.

Keep in mind not to turn the key off.

How to: Perform GM VATS Relearn

When it comes to vehicle anti-theft systems (VATS), there are a few situations in which you will need to retrain your system. Resetting your Passlock or Passkey VATS system is another term for this procedure. While the Passlock and Passkey systems operate in a somewhat different manner than VATS, the troubleshooting procedures for both systems are very similar. We recommend that you conduct preliminary research or get your truck properly diagnosed before beginning this process. Trouble codes that may be encountered

  • PASSLOCKTM SENSOR POWER CIRCUIT: B2947: PASSLOCKTM SENSOR POWER CIRCUIT: B2948: SECURITY SENSOR SIGNAL CIRCUIT VOLTAGE HIGH
  • B2957: SECURITY SENSOR SIGNAL CIRCUIT VOLTAGE LOW
  • B2958: BCM SIGNAL INPUT VOLTAGE HIGH
  • B2960: BCM READING A VAL

MORE ARTICLES CAN BE FOUND ON OUR KNOWLEDGE BASE.

How to VATs relearn on early GM vehicles

Procedures for relearning the General Motors Vehicle Theft Deterrent (VTD). To do a relearn for the Passkey III system, make sure that the vehicle’s battery is completely charged before to starting the process. The battery will be utilized for 30 minutes while the alternator is not accessible to charge the battery during this time. Connect a battery charger to the battery to guarantee that power is accessible for programming while the battery is being charged. When you execute this relearn, all previously learnt keys will be deleted from your computer.

  1. To begin, insert a master key with a black head into the ignition switch. Turn the key to the ‘ON’ position without turning the engine on or turning it off. The security light should be activated and remain on
  2. Wait 10 minutes or until the security light shuts off before proceeding. For 5 seconds, press the ‘OFF’ button on the keypad. Turn the key to the ‘ON’ position without turning the engine on or turning it off. The security light should be activated and remain on
  3. Wait 10 minutes or until the security light shuts off before proceeding. To turn the key to the ‘OFF’ position, press it twice. It will be learnt the critical transponder information during the next start cycle
  4. Start the engine of the car. Relearning is accomplished if the vehicle starts and operates normally after being stopped for a while. Additional keys must be relearned in the following ways:
  5. Turn the key to its ‘OFF’ position
  6. Insert the key that has to be relearned. Wait for the security light to turn off before turning the key to the ‘ON’ position within 10 seconds after withdrawing the previously used key from the ignition system. It should be completed rather shortly. It is possible that you will not see the lamp since the transponder value will be learned almost instantly
  7. Steps 12 through 14 should be repeated for any additional keys.

Were you unable to locate what you were searching for? Check out our Knowledge Base for more information! Topics include: how to, VATS, and Knowledge Base.

VATS and PASSKey Vehicle Anti-Theft Systems

Information of a general nature The Pass-Key, Pass-Key II, or VATS, as it was referred to in early General Motors cars, is a keyless entry system that employs a resistor installed in the key blank to verify that the right ignition key is being used to start the engine before the engine may be started. Many people refer to the resistor pellet as a ‘chip’ because they have the widespread idea that it is some sophisticated digital circuit that allows the automobile to detect the key that is in the ignition switch.

  • It is not a ‘chip’ of silicon, as is normally used for integrated circuits, but rather a block of carbon that has been suitably sized to provide the electrical resistance that is required.
  • The resistor blocks are staked into the key bodies, right between the key bow and the pinning incisions, and they provide excellent resistance.
  • Typically, these are priced around three times more than the same key that can be obtained from any trustworthy locksmith.
  • Key Codes for Vats Defeats and setbacks (Ordered in KEY BLANK numbers from 1 to 15, Resistances in Ohms) Operation of the system In normal operation, the VATS decoder detects the right resistance during cranking while the system is functioning in normal mode.
  • When the contacts on the start enable relay shut, electricity is permitted to flow to the ‘S’ wire on the starter.
  • During cranking, this signal permits the ECM to operate the fuel injectors, which is beneficial.
  • For a period of four minutes, the VATS decoder module will shut off the start enable and ECM signal outputs if the key resistance is read incorrectly or there is no key resistance.

Although the right resistance is read inside the four-minute time limit, the VATS module will not activate the relay or alert the ECM until the end of the time limit has passed.

When the ignition is turned on, the ECM will additionally set the value 53 if the correct signal on CKT 229 is not received by it from the ECM.

The SECURITY bulb will remain on in order to alert the driver that a VATS system problem has occurred.

An error code has been generated.

It is important to note that this error code does not persist in VRAM memory, but rather is only present while the situation occurs.

When a valid key resistance is detected, the VATS and PASSKey systems send a grounding square wave at a 30Hz rate to the ECM to inform it of this fact.

The reference signal must be alternately grounded and permitted to be brought up by the ECM internal resistor 30 times per second (30 Hz) and at a 50% duty cycle in order for the ECM to function properly.

When cranking, the signal is just required to enable the injectors, and it is not required after that.

The PASSkey-II signal is a square-wave pulsed-ground signal, however it operates at a 50Hz rate and with a 50 percent duty cycle.

When the leaf contacts are engaged, the wiring from these contacts flows down the steering column wire harness, where it connects to the vehicle harness at the base of the column.

The circuit continues from there to the VATS decoder module, which is connected by wires that are purple/white and white/black in color.

This module is positioned beneath the dash in the LH foot well, close to where the kick panel would normally be found. The VATS decoder module contains sixteen connection pins, however only eight wires are used to link them:

  • Informative notes about the subject To ensure that the right ignition key is being used to start the engine, the Pass-Key, Pass-Key II, or VATS, as it was referred to in previous GM vehicles, is installed in the key blank and contains a resistor. A widespread misunderstanding is that the resistor pellet is some kind of sophisticated digital circuit that can detect the key to the automobile, which leads to many people calling it a ‘chip.’ To put it another way, not at all. In contrast to the conventional usage of silicon for integrated circuits, it is just a block of carbon that has been suitably sized to provide the correct electrical resistance. Chevrolet used around fifteen different resistance settings in their pinning codes to provide another layer of difficulty in stealing vehicles. They are staked into the key bodies, just between the key bow and the pinning incisions, and they provide a strong connection. Almost any General Motors dealership may provide you with a replacement key for a car that is equipped with VATS. Typically, these are around three times more expensive than the same key that can be obtained from any competent locksmith. With a VOM (variable-oscillating multimeter), you may measure the resistance of the pellet and advise the locksmith of the blank you will want, or you can just let them to test and match the pellet to the blank they will provide. Tax Identification Numbers (Vats) The presence of oppositions (Ordered in KEY BLANK numbers from 1 to 15, Resistances in Ohms) Procedures for Maintaining and Upgrading the System It is the VATS decoder that determines the right resistance during cranking when the system is in regular operation. The Start Enable Relay coil is grounded by the module. When the contacts on the start enable relay shut, electricity is permitted to flow to the ‘S’ terminal on the starter’s control board. It also communicates with the ECM by transmitting an enable signal. While the engine is cranking, the ECM receives this signal, which allows it to run the fuel injection system. This light will likewise be illuminated for roughly five seconds, after which it will go off completely and not come back on again. For a period of four minutes, the VATS decoder module will shut off the start enable and ECM signal outputs if the key resistance is wrong or does not exist. SECURITY light will flash during the cranking attempt and remain illuminated for the whole 4-minute length of the experiment. Even if the right resistance is read within the four-minute time limit, the VATS module will not operate the relay or send a signal to the electronic control module. An error code has been generated by the program. When the ignition is turned on, the ECM will additionally set the value 53 if the correct signal on CKT 229 is not received by it. It is possible that the VATS module will enable the car to be restarted even if there is an existing failure if it detects an erroneous resistance after the engine has started. Because of the VATS system problem, the SECURITY bulb will remain illuminated to alert the driver. However, this also implies that the car can be started even if the key resistance is incorrect, making it a target for auto thieves. An error code has been generated by the program. In this mode, the ECM will additionally set the number 53. It is important to note that this error code is not stored in VRAM memory, but rather is only present while the situation occurs. It can be used as a diagnostic tool in the troubleshooting process for VATS systems. The VATS and PASSKey systems employ a grounding square wave at a rate of 30Hz to inform the ECM that the right key resistance has been sensed. Using an NPN output transistor to bring the 5 VDC reference voltage given by the ECM on terminal B6 down to zero (ground), the VATS module achieves its function. Thirty times per second (30 Hz) and at a duty cycle of 50 percent are required for the reference signal to be alternately grounded and permitted to be drawn up by the ECM internal resistor. To avoid the simple powering or grounding of an ECM input in order to enable the fuel injectors, this solution was implemented. When cranking, the signal is just required to enable the injectors, which is only required during cranking. Following start-up, the VATS signal can be turned off and the engine will continue to work properly, but with the SECURITY warning light illuminated. It is a square-wave pulsed-ground signal, similar to the PASSkey-I signal, however it operates at a 50Hz rate and with a 50% duty cycle. A description of the circuit It is connected to the resistor pellet buried in the key blank right below the bow by means of two leaf contacts on the outside of the ignition lock cylinder’s outer end. When the leaf contacts are engaged, the wiring from these contacts flows down the steering column wire harness, where it connects to the vehicle harness at the bottom of the column. Taxidermy wiring in the column is often housed in an orange-covered cable, though it can also be black, and it is connected to the vehicle with a single two-pin connector (no other circuits in the cable). By using the purple/white and white/black wires, the circuit carries on to the VATS decoder module. Located beneath the dash in the LH foot well, next to the kick panel is the VATS decoding module. It only takes up eight wires, despite having sixteen connection pins on the VATS decoder module.
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NOTES –Circuit 229 was wired with a dark blue wire from 1988 to 1990, and the circuit travels through the C207 connection that connects the ECM to the dash harness during that time period. The connection to the ECM on pin B6 may have been different on earlier VATS systems, but the schematic and connection to the ECM on pin B6 are the same. Some systems may use two white wires to connect the lock cylinder to the VATS decoder module, whereas others may not. Depending on the model, the critical resistance wires may be covered in either a black or an orange coating.

  • Either a failure of the VATS module output, which generates the signal, or a shorted or open circuit 229 between the VATS module and the ECM, might result in this error condition.
  • As a result of contamination of the key bow’s leaf contacts, and maybe also the resistor pellet, it is typical for this to occur to the point where the VATS decoder module is unable to appropriately perceive the pellet resistance, or is unable to sense any resistance at all.
  • In many cases, cleaning the key pellet and leaf contacts can restore system functionality completely.
  • Powdered graphite is the only lubricant that is widely acceptable for use with ANY lock cylinder, whether it be a plate or pin type mechanism.
  • Due to the essential bending required by the ignition lock cylinder contacts every time the ignition lock is adjusted, it is also usual for the two wires from the ignition lock cylinder contacts to get damaged.
  • As a result, because there is so little space between moving elements in the upper bowl of the steering column, a small two-wire connector located in the top bowl of the steering column may get damaged or disconnected as well.
  • The connector at the VATS decoder module is typically trustworthy, and the connection at the start enable relay is also rather safe and dependable in terms of interfering signals and interference.
  • In addition, because the start enable relay is a mechanical mechanism, it may malfunction after lengthy usage.

Following are some diagrams and charts that may be useful in understanding and troubleshooting the system: Figure 1. «Firebird Wallpapers» is a collection of high-quality images of firebirds. New video and technical article have been added!»

PERMANENTLY Disable and Remove GM Security Systems

NOTES –Circuit 229 was wired with a dark blue wire from 1988 to 1990, and the circuit travels through the C207 connection that connects the ECM to the dash harness during this time period. The connection to the ECM on pin B6 may have been different in earlier VATS systems, but the schematic and connection to the ECM on pin B6 are the same. When connecting the lock cylinder and the VATS decoder module, certain systems may require two white wires. There are two options for the covering of the key resistance wires: a black or an orange one.

  • Either a failure of the VATS module output, which creates the signal, or a shorted or open circuit 229 between the VATS module and the ECM, might result in this error message.
  • As a result of contamination of the key bow’s leaf contacts, and maybe also the resistor pellet, it is typical for this to occur to the point where the VATS decoder module is unable to detect the pellet resistance accurately, or is unable to detect any resistance at all.
  • System functioning can usually be restored by cleaning the essential pellet and leaf contacts.
  • Powdered graphite is the only lubricant that is widely recognized for use in any lock cylinder, whether it be a plate or pin type.
  • Due to the essential bending required by the ignition lock cylinder contacts every time the ignition lock is adjusted, it is also typical for the two wires leading to the contacts to break.
  • In addition, due to the narrow space between moving elements in the top bowl of the steering column, a small two-wire connector located in the upper bowl of the steering column may get damaged or disconnected as well.
  • The connector at the VATS decoder module is typically dependable, and the connection at the start enable relay is also quite safe and reliable in terms of interfering signals and other factors.
  • As a mechanical mechanism, the start enable relay itself has the potential to fail after extended operation.

The diagrams and figures that follow may be helpful in understanding and troubleshooting the system. «Firebird Wallpapers» is a collection of desktop wallpapers created by the artist. Video and technical article have been added.»

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.

Valet parking systems (VATS), Passkeys, and Passlocks — the heart of General Motors security systems – have a short lifespan and are far more successful at stopping you from DRIVING your car than they are at keeping someone from STEALING your car. Vehicles equipped with General Motors Security Systems are being destroyed across North America, and the only permanent remedy is to disable and remove them completely. This is the underlying philosophy of NEWROCKIES Inc.

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!

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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

Buy GM VATS Bypass Online

The suggested retail price is $19.99. You save $2.04 above the standard rate (10 percent ) GMVATS is the part number. In situations where resistor type bypasses simply will not work, such as when installing a General Motors engine equipped with VATS (Vehicle Anti-Theft System) into a vehicle lacking a BCM (Body Control Module), or when remote starting applications involving stock vehicles equipped with VATS, the VATS bypass module is intended for use. Our VATS bypass will also function to bypass VATS systems that are not functioning properly.

  1. The fuel injectors will shut down within the first three seconds if this signal is not received.
  2. By utilizing our module, you will be able to complete the same task at a lower cost, and you will avoid the need to ship your PCM/ECM to be reprogrammed.
  3. Using only four wires (power, ground, standard signal, and 30Hz signal), the module may be removed and replaced with a detachable connection, allowing the factory anti-theft system to secure your car overnight or while it is on display at a car show.
  4. This module is equipped with a status LED, which displays whether or not it is in operation at all times.
  5. Other characteristics are as follows: Because of their dependability and precision, microcontrollers are used.
  6. It is compatible with any 12V ignition or accessory wire (operates from 7V to 24V) Waterproof In the case of faulty power connections, reverse voltage protection is provided.
  7. VATS is available in two frequencies: standard VATS and 30Hz VATS.
  8. I attempted to bypass the key by splicing in resistors, but this failed miserably.
  9. It was a complete failure.
  10. I placed my order with the assumption that I had nothing to lose.
  11. Previously, I had grounded the starter relay, which was located beneath the dash.

My car started straight away and continues to function flawlessly. I wish I had discovered this a few months ago. Were you able to use this information? 4 out of 8 people found this article helpful. Mike C from Georgia gave his opinion on the matter on November 5, 2019.

Amazon.com: Timers.Shop GM VATS PASSkey II Bypass Module for LS1 and LT1 Painless : Automotive

On June 26, 2020, the United States will conduct a review. Purchase that has been verified This did not result in the ignition of a 1992 LT1 Corvette. The main issue is that the instructions state that the signal should be routed to the white wire on pin 19 of the 22 pin gray connector on this car, but this wire does not exist on this car, or at least not on the one I was working on, despite the fact that the instructions state that ‘All late TP1 and LT1 engines should have this wire in the harness,’ which is incorrect.

  • The instructions for a comparable product from Painless Performance demonstrate how to install this wire in a vehicle that does not already have it.
  • I followed the Painless instructions and attached the wire, but it did not work.
  • The lights turned on, and a multimeter confirmed that the output signal was at the correct frequency, but the automobile did not respond.
  • a rating of 2.0 out of 5 stars A 1992 LT1 Corvette did not get off the ground.
  • King published an article.

The main issue is that the instructions state that the signal should be routed to the white wire on pin 19 of the 22 pin gray connector on this car, but this wire does not exist on this car, or at least not on the one I was working on, despite the fact that the instructions state that ‘All late TP1 and LT1 engines should have this wire in the harness,’ which is incorrect.

  1. The instructions for a comparable product from Painless Performance demonstrate how to install this wire in a vehicle that does not already have it.
  2. I followed the Painless instructions and attached the wire, but it did not work.
  3. The lights turned on, and a multimeter confirmed that the output signal was at the correct frequency, but the automobile did not respond.
  4. The photographs in this review On November 5, 2019, a review was conducted in the United States.
  5. It took me numerous hours.
  6. Then I attempted to install a much more expensive bypass module under the dash, only to discover that I needed to use the other technique of installing under the hood at the PCM/ECM, which was considerably more time consuming and involved more effort.
  7. I spent three weeks arguing with their tech support representative without getting far.

It was a tenth of the cost of the first module I purchased.

It arrived swiftly and was up and running in 5-10 minutes.

I can’t think of a better option at this point.

Purchase that has been verified Bypassing the VATS/PASSKEY system on my 1989 Corvette is as simple as jumpering the starting enable relay (which is simple and does not require any special tools) and delivering a 5v 30hz signal to the ECU.

Alternatively, you may spend $350 to replace the PASSKEY module (assuming you can ever find one).

On July 9, 2019, Scott Garner posted a blog entry.

As long as you’re comfortable with VATS being permanently disabled, this small item takes care of the last portion, and it works flawlessly.

The photographs in this review On March 3, 2019, a reviewer in the United States gave his or her opinion.

The map and directions are available online.

It worked just as they said it would.

After that, I went to their website, which was, shall we say, unclear.

If it’s not F10, the message basically suggests that it may be this one, or that one, or even that one if it’s not F10.

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a rating of one out of five stars Get yourself a chip.

wrote: In the packaging, there are no installation instructions for the module, which I purchased for use in a 1991 F-body with an injector pulse problem.

According to the instructions, the fuel injector wire will be located in the harness at F10 for TPI vehicles, which would be ideal if there was an F10 in the plug to begin with.

If the company had done the research and included a diagram with their product, I could see how they could justify the price, but for $25 that will end up in the trash, I’m a little disappointed.

Purchase that has been verified It didn’t work.

There were no instructions delivered.

Their YouTube channel was of no assistance.

Look around for something different.

I had to send my PCU in to be erased and reprogrammed, which took a long time.

Before making a purchase, do your homework.

Purchase that has been verified This is an exceptional piece of work.

Locate a suitable wiring diagram for your vehicle to assist you in identifying the wires in your vehicle.

On October 22, 2018, a review was conducted in the United States. Purchase that has been verified put on an LS1 engine from a 1996 Cadillac. Everything worked as described. I placed an order for another one to keep on hand.

Bypass VATs on 92-99

92-95 If the car starts, there is no problem with the vats. 96-99 If the automobile does not start, it is not due to a vats problem. If you have a VATs installed on your vehicle, your key will appear similar to this one. The VATs chip is located on the metal section in a little black oval. This will only work to get around the chip in your key, and it will not disable VATs. Please read the information below before circumventing your VATs. – Will the automobile not even attempt to crank over when you enter your ignition key and turn the key in the ignition?

  • Simply cleaning the chip on your key or using another key for the same automobile is the simplest option.
  • **NOTE** The factory starter interrupter (VATS) in your vehicle* will be disabled when you complete the steps in the following procedure.
  • Any modifications you make to your VATs are entirely up to you; the author, owner, or operators of this website cannot be held liable for any damage or theft that occurs to your vehicle.
  • Vehicle Anti Theft System (sometimes known as Vats) is an acronym.
  • ‘ This key, referred to as ‘Chip,’ has nothing to do with computers, and it is not even a chip.
  • So that we don’t get ourselves mixed up.
  • The Vats key was initially introduced by General Motors in 1986 for Corvettes, followed by certain Cadillacs and other vehicles.

You wouldn’t be able to identify the difference just by looking at the keys.

In order to operate the lock, each VATS key has its * own set of unique incisions on it.

A mechanical key is what this is referred to as.

The manufacturer assigns a(value) to each VATS module based on a random selection.

If the VATS module determines that the chip is valid, it will instruct the starter and fuel pump to run.

Here’s how to figure out the value of your key: It’s possible that you’re aware of the VATS key you’ve acquired.

VATS keys can be identified in a variety of ways, the most common of which are as follows: Keep in mind that there are a total of 15 distinct options.

Most locksmiths have these readers, and they don’t modify anything in order to tell you what they’re thinking.

In the event that you have a Volt Meter, you may check the OHMS (resistance value) of the chip yourself.

A number will show on the screen.

Keep in mind that it is not guaranteed to be precise.

VATS keys are found on any GM product, including Buick and Cadillac, Oldsmobile and Chevrolet, as well as Pontiac and GMC (single or double-sided.) VATS(K)OHMS is an abbreviation for VATS(K)OHMS (Set your meter to the 20k ohm setting) 1 0.4022 0.5233 0.6814 -0.8875 -1.1306 -1.4707 -1.8708 -2.3709 -3.01010 3.74011 4.75012 6.04013 7.50014 9.53015 11.801 0.4022 0.5233 0.6814 -0.8875 -1.1306 -1.4707 -1.8708 -2.3709 -3.01010 3.74011 4.75012 6.04013 7.

The following tools and supplies are required: Cutting/Stripping/Crimping Tools Soldering Iron Wire Cutters/Strippers/Crimper Voltmeter/Ohmmeter is a measurement instrument (DMM) 8 inches of 16 gauge wire, approximately (speaker wire works great) Crimp-on connections in the ‘Bullet-Style’ Heat Shrink Tubing is a type of tubing that shrinks when heated.

  • One probe should be placed on the silver portion of one side of the pellet, and the second probe should be placed on the opposite side.
  • 2.Acquire a resistor or a series of resistors that sum up to the value determined in step 1.
  • 3.Take the 16 ga.
  • Remove approximately 1/16′ of insulation from each side of the two wire sections in step 4.
  • Example: You weigh 11.72 kilograms (kilograms or 1,000 grams) according to the 20k (kilogram or 1,000 gram) scale.
  • In order to obtain the 11.801k ohm value, you will need to purchase three resistors from Radio Shack: one resistor of 10,000 ohm (10k), one of 1,000 ohm (1k), and one of 800 ohm, all of which will be wired together in series.
  • The resistance is in the range of -10k ohm-I-1k ohm-I-800 ohm-wire.

Make absolutely certain that the value corresponds to the value of the resistor pellet in the ignition key (within 2 percent up or down.) Heat-shrink tubing should be cut to fit over the resistors, with a tiny amount of tubing hanging over the two wires on either side.

Eighth, connect one of the wires to a male bullet connector while connecting the other wire to a female bullet connector (see Figure 1).

Remove the kick panel from beneath the dash.

A ‘rubbery’ sensation to this wire should be expected; it is the sole orange wire that emerges from the column.

These wires are intended for use with the airbag.

Remove this wire (there are two little wires inside) and pull back the insulation from the wires on the other side of the steering column.

12.Connect one of the two wires with a male bullet connector, and the other with a female bullet connection.

14.

If the problem was with the VATS reader in the ignition lock cylinder, this will allow you to start the vehicle.

If the VATS module is faulty, it is necessary to remove the resistor pack.

Remove the insulation from the opposite side of the main wire cut (which is flowing away from the column) and attach a male connector to one wire and a female connection to the other with a crimp connector. The VATS reader’s functionality will be restored after the two pieces have been reconnected.

Bypass VATS, Passkey and Passlock security systems in GM vehicles

I can’t tell you how many times I’ve seen this on General Motors vehicles throughout the years. It is possible that the security system may break down or stop operating, leaving you trapped. It’s really inconvenient, and you can’t afford to pay a large repair price to have your vehicle back up and running. It is possible that your VATS, Passkey, or Passlock anti-theft system is malfunctioning and creating your problem. I’m going to reveal a little-known technique to you about how you can get around these systems with very little effort.

This kit is available for purchase from New Rockies.com.

This General Motors security bypass kit will work with a variety of GM, Oldsmobile, Chevrolet, Pontiac, and even Buick automobiles now on the road.

I would recommend this bypass kit to anyone who is experiencing factory security difficulties on any of the vehicles listed below (see list below).

Here is a list of GM vehicles that have VATS, Passkey or Passlock security system built in from the factory.

CURRENTLY OUT OF STOCK 4.6 stars out of 5 for this product 10 out of 10 based on 10 ratings 4.6 out of 5 stars based on 10 customer reviews

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Slideshow currently showing the best-selling ignition systems in other categories. Components Based on 10 customer reviews, this product is rated 4.64.6 out of 5 stars. 10 out of 10 based on 10 ratings

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It works

  • My wife and I own a 1990 Camaro that was purchased from the original owner. And in the previous 15 years, we’ve had to replace the Cylinder lock for the VATS six times, which has been a pain, and the most recent one was an AC Delco that only lasted three years before breaking. Not to mention that you will need to obtain new keys, which will be purchased separately. VATS Bypass is something I’ve heard about previously, but it wasn’t inexpensive. After seeing this VATS Bypass and considering the pricing, I figured, why not? It took me about ten minutes to put it in, and the camaro started right up after that. It was very simple to put together, and it was much smaller than I anticipated, so it had no trouble keeping it out of the way. I really like it, and I may even purchase another one to have on hand in the future. Purchase was verified: Yes|Condition: Brand new

Perfect ‘Plug-n-Play’!

  • This is an excellent product. I just plugged it in and it worked flawlessly! It’s a simple plug-and-play device. Simply determine the value of your VATS Key and then order the ByPass that corresponds to that value. Yes, I strongly advise you to use this product for your VATS Bypass. Purchase has been verified: Yes| Condition:New
  • 5 stars out of 5 for this product sbyblue91z 20th of June, 2018

Great Product!

  • The product is outstanding. You should do this if you are experiencing difficulties with your VATS system. The product has been well-assembled. Purchase was verified: Yes|Condition: Brand new

VATS Bypass

  • It was a complete success! It’s a lot less expensive than replacing the key cylinder! Purchase was verified: Yes|Condition: Brand new

Easy to install saved me time I love it I’m riding again

  • It was a total success! The cost of replacing the key cylinder is significantly less expensive. Yes|Condition: Brand New|Purchased with verification|

Vehicle Anti-Theft System (VATS)

Vehicle Anti-Theft System (VATS)As you may already know, some of the TPI systems were used on vehicles on which GM implemented a security feature known as VATS. It stands for Vehicle Anti-Theft System. When first introduced by GM on the 1988 Corvette, vehicle theft was reported to have dropped by 30%. This was a simple, and effective system in its time. However, it is an annoying feature when trying to install TPI on a vehicle that does not have a VATS system installed. How It WorksThe idea behind it is very simple.

  • When you attempt to turn the ignition ON, the resistance of the chip is measured, and compared to the value stored in the VATS decoder module.
  • At the same time, the starter enable relay will be energized by the VATS decoder module.
  • Additionally, a code 46 will be shown.
  • The module will shut down for 2 to 4 minutes.

If the ignition switch is turned during this time, the timer will restart even if a key with the correct resistance is used.There are 15 possible resistance values that were used by GM.402 ohms (acceptable range 386-438) 523 ohms (acceptable range 502-564) 681 ohms (acceptable range 650-728) 887 ohms (acceptable range 850-942) 1130 ohms (acceptable range 1085-1195) 1470 ohms (acceptable range 1411-1549) 1870 ohms (acceptable range 1795-1965) 2370 ohms (acceptable range 2275-2485) 3010 ohms (acceptable range 2890-3150) 3740 ohms (acceptable range 3590-3910) 4750 ohms (acceptable range 4560-4960) 6040 ohms (acceptable range 5798-6302) 7500 ohms (acceptable range 7200-7820) 9530 ohms (acceptable range 9149-9931) 11800 ohms (acceptable range 11328-12292)What It Was Used OnThe contents of the PROM is what decides whether or not the ECM is expecting a signal from a VATS decoder module.

Some proms have it enabled, some have them disabled.

If you would like to know if VATS is going to be a problem for your TPI install, the following will be helpful.

1227730 and 1227727All factory PROMS had VATS enabled.

If you are using a Speed Density computer on a vehicle that does not have a VATS system installed (most applications) then you will need to have VATS disabled in the PROM.

1227165All the factory PROMs used on 1989 models had VATS enabled.

If you are installing TPI on a vehicle that already has a VATS system installed (like a 1990 Camaro RS for example), then you do not need to disable VATS from the PROM.

If you need this service performed on your PROM, contact us for more details.If your prom came from anything other than the models mentioned above, then it does not have VATS enabled.

In this case, you can run your PROM without any modifications. 1226870None of the models which used this ECM had VATS enabled.

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