Gm Passlock 3 Bypass Resistor

In 98+ trucks, the passlock and EVO steering are in the same module. Follow the security system (PASSLOCK) AUTO LEARN procedure outlined below to enable the replacement IPC and the ECC to communicate and learn a new password: 1. These security systems were incorporated into many of their models, including the ’97-03 N-bodies, to keep GM cars from being stolen. Comment with any questions and I'll answer to the best of my abilities. XpressKit XK06 General Motors Override Interface XK06 programmable Immobilizer Data Override Interfqace preloaded with upgradeable firmware (PKG7). Passkey III, Passlock I & II and VATS data bypass kit for Buick, Cadillac, Chevrolet, GMC, Hummer, Oldsmobile, Pontiac, and Saturn vehicles. Here is how to permanently and effectively get rid of your problematic GM factory anti theft system woes. it is not a permanent cure to future vats issues as it is only a partial bypass. It is to help educate and guide in the diagnosing and trouble shooting of security light, "no start", and engine immobilizer problems on GM vehicles using Vats, Passlock, or Passkey antitheft security systems. 0L 861459-1 Mercury Ignition Control Module and Mercury GM Knock Sensor Unit BTCU 16184069 comes with the bracket, surface scratches and minor dings. For now, on ignition switch "run" I have wire going to ballast resistor, then resistor has wire going to "+" of the coil. I just want to make sure I tap into the right wires coming from the ignition switch. Find Heaters For Sale Online. It looks like the best way to fix it is to use the resistor method that ponchonutty talked about on page 5 of that thread. I read something about trying to find the correct resistance, and wiring in a resistor, but how would I go about that?. Average repair cost is $370 at 97,300 miles. Thanks everyone for the advice. If there was a real easy way to do it im sure car audio shops would do it to make remote start installs cheaper. By continuing to use this site you consent to the use of cookies on your device as described in our cookie policy unless you have disabled them. come bach amazon has both passlock sensors and bypass kits. ** Late production. ive read that the bypass thing your talking about also only works with a remote starter. The system resets itself every 10 minutes, so if it is the passlock, you should be able to start the car eventually (after 3-4, maybe more attempts with 10 minutes between each). You must turn the ignition OFF before attempting to start the vehicle. Some GM vehicles come with a factory-installed anti-theft system commonly referred to as the passlock or passkey. Do I need a new ignition. Ik = Ek / Rk cathode current equals cathode voltage divided by cathode resistor value (Remember to convert milliamps (ma) to amps (A) by dividing ma by 1000. The Passlock I and Passlock II systems use a sensor in the ignition lock cylinder, which looks for proper rotation of the lock cylinder with the correct key. I did know that Passlock only needs a plain key to operate/bypass Passlock. There is no green wire running from the ignition switch to the resistor. I went through 2 of them in my 99 K2500 because the truck had some interesting electrical issues and they failed. UI BULLETIN # 26 (Cont'd) ML/Bulletin 26 3 of 9 4/22/99 SWITCH OPERA TION To enable remote start: Start the engine with the ignition key (modification switch must be in the OFF position). Universal bypass module. But like those earlier systems, Passlock is designed to prevent vehicle operation if the proper ignition key is not used to start the vehicle. Enter your search keyword. Buy a 2016 Cadillac SRX Cooling Fan Resistor at discount prices. View Notes - 344-20402© 2005 Directed Electronics, Inc. Price: No parts for vehicles in selected markets. GM Passlock 2 How to test Passlock 2: 1. My passlock security light won't turn off after several reset attempts. Ran the (computer side) black wire to a ground, and the yellow wire to the relay. Carefully tuck the three wires and resistor back through the hole in the left side of the radio cavity. 8: Acquire the same size resistor and 3 relays, and perform the connections shown in the diagram below. Then wrap the other lead of the resistor and the black wire with electrical tape so that no bare wire is left uncovered. buut if the install is less than a year old its probably still under. I installed an aftermarket remote starter and at the point of hooking up and programming the Xpresskit PLJX bypass module. (Threads that are inactive for 30 days will be removed. A wide variety of GM cars come with a passlock theft system feature that is meant to keep GM cars from being stolen. Hi, Sorry to jump right in as a newby, but as I want to swap a complete LSJ engine into a European Opel Speedster (currently running a Z22SE with E15 pcm) I need to find out a way to disable the VATS/Passlock system in the LSJ's P12 pcm. For now, on ignition switch "run" I have wire going to ballast resistor, then resistor has wire going to "+" of the coil. VATS stands for Vehicle Anti-Theft System. They all require a bypass module with dial-in resistance resistor. Presenting 48l Lincoln 1995 Aerostar available to buy right now online. Passkey 3 as well as the Passlock II resistor code immobilizer. com Why the NEWROCKIES Inc PRO Passlock Bypass DOES Work – Permanently. VATS / PASSLOCK / TRANSPONDER Universal Alarm Bypass Module Models 20402, 23402, 27402 & 29402This module lets you bypass virtually any type of factory passiveanti-theft system on the market today to remotely start yourvehicle without permanently disabling the vehicle’s anti-theftsystem. Let the ignition on for ten minutes or until the theft light goes. All this product does is AMPLIFY the signal received by the key tumbler. Get resistor(s) that come as close as possible to the value you had gotten. Well, now I'm almost finished (i've been slacking), and I am wondering if anyone out there knows how to bypass the passlock system on a 99 5. i think my best bet is to get yet another cluster, put it in, if it work, bypass the damn passlock once and for all and then be done with it. How does the source resistor effect the circuit? Vgs will be different because Vs will no longer be 0. Under 10 bucks - A far easier method to by-pass the GM VATS security system which doesn't need a chain of resistors or a trip to Radio Shack. Important. 8: Acquire the same size resistor and 3 relays, and perform the connections shown in the diagram below. I plan on adding a alarm or remote start alarm later on. This is a really unique security system bypass kit that you can use to override your current factory theft system on your GM vehicle. Hey guys I removed a 4L80E from a 1998 K3500 Sierra CC LWB to have it rebuilt this took about a week before before I had it all back together, we'll fire it up and starts right up and dies 2-3 seconds later getting the C1626 loss of communication with VTDS security light stays on will not go out after trying relearn procedure at least a dozen times, has anyone done the passlock bypass and is. • Remove the lap cooler hose. The (05) Colorado does not have passkey 3, it has passlock 2. NOTES: Values may be any standard form (68400 or 68. when the key is turned to the start position, the cylinder connects its internal. How to troubleshoot/bypass a GM VATS Passlock Passkey System: Doing a bypass module on an older vehicle GM VATS Passlock or transponder: GM passkey test and bypass: How to Find KEY resistance in GM PASSKEY Chip for KEY REPLACEMENT VATS PASSKEY BYPASS: GM passlock 3 PK3 factory anti theft immobilozer bypass fix. Passlock 3 has a RFID chip in the key, you got that part right. They are all basically the same, they just moved the part/module that reads the key around as time. tech bulletin GM ELECTRONIC VARIABLE ORIFICE (EVO) STEERING SYSTEM The “Electronic Variable Orifice” (EVO) steering system was introduced by General Motors. While GM kept focusing on the input signal as the years went by, they totally forgot about the output signal. Re: I want to disable passlock permenantly!! I have searched. I have a 2006 Silverado vin 1GCEK19V36Z172127 and I would like to know if it uses Passlock 1 or Passlock 2. I should have asked more questions before buying the remote start bypass kit. PASSLOCK SENSOR BYPASS If you find the black wire and the yellow wire from the passlock sensor in the column you can solder in a 2. Due to glitches with these built-in security systems, GM owners may experience problems trying to start their vehicles. Connect the (+) positive digital multimeter lead to the ignition key side of the Yellow Passlock 2 wire. My question is the bypass necessary? I have read all the threads on the bypass logic and think I understand it. PASSLOCK-2003 - General Motors Passlock Bypass Kit. Passlock bypass options General Tahoe/Yukon Discussion Forum You are browsing Tahoe Forum. You must turn the ignition OFF before attempting to start the vehicle. It worked great for 6 mos then started acting up again. Some systems use a heat-sensitive external resistor that needs no mechanical bypass. any questions about this problem or these bypass methods, or just a gm anti-theft security question in general, feel free to e-mail me. Used for bypass of GM VATS, PassLock1, PassLock2 and PassKey factory security systems. I definitely have this SECURITY / Passlock II issue as well on my 98 Yukon. Passlock X3 Green 25 pin 15 White/Purple (MUX) BCM, left side of steering column A Parking Light X1 White 26 pin 22 Green/Gray (-) BCM, left side of steering column A * Early production. com Why the NEWROCKIES Inc PRO Passlock Bypass DOES Work – Permanently. 0 k wire cuters , MaxiSys 905 made by AUTEL volt meter made by POWER PROBE this is how you do a bypass on a passkey III gm products Passkey Bypass 3. Skip to main content. 0L 861459-1 Ignition Control Module Knock Sensor Uni” is in sale since Saturday, February 16, 2019. Both the yellow AND black wire are cut on the key side and not in use. I see this a lot working on cars GM vehicles equipped with Passlock. XpressKit PLJX • GM Self Learning Passlock Override • GM Self Learning Passlock Override • GM Passlock 1 2 Vats and Ion Self Learning Digital Interface Jumper Selection. To remotely start a car with this feature, you must bypass the PASSLOCK system. •Disable Pass Lock system to prevent from being stranded in the future. Locate the EVO Module and Install the PRO Bypass The EVO Passlock Module is under the center of the dash under the Ashtray. Once engine is started the system should operate in fail enable - which basically means any Passlock wiring issue between ignition cylinder up to ECM/PCM will. Shop with confidence. Find great deals on eBay for gm passlock bypass. VATS and Passlock I & II data bypass kit for Buick, Cadillac, Chevrolet, GMC, Hummer, Isuzu, Oldsmobile, Pontiac and Saturn vehicles. The vehicle may not be able to start with the key for 20 minutes (see PAGE 2 for Diagram). help If your GM vehicle is in need of a Passkey or VATS anti theft solution, Read on. Unless these procedures are correctly performed the vehicle will not start after the PCM has been replaced. They are all basically the same, they just moved the part/module that reads the key around as time. The TDM (or passlock control module) is in the dash behind the radio area and you can get at it above the fuel pedal. I went through 2 of them in my 99 K2500 because the truck had some interesting electrical issues and they failed. Under 10 bucks - A far easier method to by-pass the GM VATS security system which doesn't need a chain of resistors or a trip to Radio Shack. Please take a moment to review our shipping policy to be informed of how and when. You'll find some useful tips and bypass methods below. USED -Mercruiser GM Bravo Alpha 5. Stop in the shop, call us o. 8: Acquire the same size resistor and 3 relays, and perform the connections shown in the diagram below. The GMBP is a "3 in 1" bypass solution which is compatible with the 1st Generation GM Passkey used on the 1999 Transport, Venture & Silhouette and the more common 2nd Gen. This is what NEWROCKIES Inc is all about. Hi, Sorry to jump right in as a newby, but as I want to swap a complete LSJ engine into a European Opel Speedster (currently running a Z22SE with E15 pcm) I need to find out a way to disable the VATS/Passlock system in the LSJ's P12 pcm. Omega AU-VAT GM VATS Passlock 1 & 2 resistor based anti theft Bypass Kit. To remotely start a car with this feature, you must bypass the PASSLOCK system. 2k ohm resistor and just forced it to relearn that resistance. passlock security is a garbage system installed by GM for like 20 years. They serve the same purpose tho. I have the brown wire running from the IGN 1 lug to the resistor and the other side (green wire) going to the coil. This is not how to bypass the system completely or cutting I don't agree with the cutting …. Resistor Code Input (White Wire - Connector Side) Resistor Code Output (White Wire - BCM Side) 12 Volt Output (Red/White Wire - Connector Side) +12 Volt Starter (Input from RCS) Transponder/Passlock Immobilizer Via Data Output Input Bypass Factory Passlock Bypass Factory Passlock Bypass Immobilizer. The most common symptom of a failed blower motor resistor is when the heater fan only runs at the highest speed setting (4 or 5) and doesn't work at low speeds. I have the TSB sitting in front of me right now, and it describes my problem. switch in the. Press programming button 1, 2 or 3 times to select the Passlock Type. THIS PRODUCT MUST BE SOLD, INSTALLED AND SUPPORTED BY A PROFESSIONAL. What we want to do is read the value of the resistor in the ignition switch when the key is in the start position. We hope you have got a great purchasing. GM VATS Pellet Inserted Chip Order the GM VATS Override Kit Here Learn how to over-ride the VATS key Here. How to Override Bypass a GM Passlock 1 2 & VATS Factory Anti Theft System passkey In GM cars, there is a bundle of three wires which go from the Body Control Module to the Ignition Switch. NOTE #1: This vehicle is equipped with GM'S PASSLOCK 2 ANTI-THEFT SYSTEM that will Require the 791 Bypass Module for REMOTE STARTING. Universal bypass module. See more of Newrockies Inc. The other electrical problems snowballed. Passkey 3 uses a transponder in the key. The new ballast resistor has arrived from the US now so I think I'll fit it and hope for the best. Hasn't acted up once, security hasn't come on at all either. I tried the relearn, but no go. If not under warranty, you could go to a place that installs remote car starters and get them to disable the Passlock. • Remove the lap cooler hose. How to disable and remove VATS, PASSKey and Passlock Security Systems in GM cars This site sells a part that will bypass your passlock system forever. American Autowire br. See vehicle application guide for supported features. 1964-1968 Corvette Heater Blower Motor Genuine GM 5044555 CAVEAT EMPTOR: this part needs to be cleaned. 5 cent resistor method. How to bypass the security system. com - an industry leader in providing remote starts to do-it-yourself installers since 1999. this system is st ill being used in 2005 vehicles. Passlock ~Black 6 pin 4 White (+) Ignition connector Doorlock Bypass General Motors. See the GM V. Get resistor(s) that come as close as possible to the value you had gotten. General Motors review with 258 Comments: This letter is addressed to General Motors. Post items that are not W-body related here. GM made several different types of anti-theft systems. 11 results for gm passlock bypass Save gm passlock bypass to get e-mail alerts and updates on your eBay Feed. switch in the. The Passlock System was introduced in 1995 on some vehicles and has progressively been used more and more, where it is found on a good majority of GM passenger vehicles. module was also installed (555L)if a wire from this unit came off. I took an ohm reading like he said to do and got 3. NEWROCKIES Inc. Later versions include PassKeyII, PassKeyIII and PassLock (which uses no resistor "pellet"). Point type distributors require a 12 volt lead that is not reduced by the ballast resistor in the starter cranking cycle for the car to start. Passlock III reset procedure How to do a Passlock III reset. The Model 721 has no affect on the Passkey or Passlock system when the remote start is not in use. Orange/Black (or Black) and Yellow. Repeat steps 1 through 4 two more times for a total of 3 cycles/30 minutes, the vehicle is now ready to relearn the Passlock™ Sensor Data Code and/or passwords on the next ignition switch transition from OFF to CRANK. Corvette thefts dropped so impressively after VATS was implemented that GM expanded the system in 1988 to the Camaro, Firebird, and Cadillac Seville. find the yellow and the black wires strip the black but dont cut it start the truck cut the yellow wire using a multi meter put one of the probes on the black wire and the other one goes on the yellow wire. Cars, car parts, auctions, stereos, computers, etc. It constantly fails leaving cars stranded on the side of the road when they stall or stuck in the driveway or parkinglot. don't take it out on me. Create New Account. 2k ohm resistor into the wire that the bcm reads for passlock resistance. Thousands of people are trying to bypass GM Security Systems the wrong way. 7k ohm resistor, and a 1/4 watt 10k ohm resistor. Bypass the. : ##61903##COM-BLADE-AL(DL)-GM7-EN 20190507 INST Doorlock Interface General Motors. Not to be confused with "remote starter" bypasses that won't fix a failed system, or a "Learning" bypass that only mimics the correct key signal. i had a mechanic come to the house and run diagnostics, so i'm pretty sure the passlock is the problem. This article describes how to troublshoot and fix a PassLock system. The vehicle may not be able to start with the key for 20 minutes. I am going to share a secrete with you on how you can bypass these systems with very little effort. com FREE DELIVERY possible on eligible purchases. I went through the other passlock tread or most of it anyways. I replaced ignition switch w/NAPA part 10-09-09. Medium Voltage Switchgear. • Remove the lap cooler hose. Enter your search keyword. You can get the new PCM to learn the old keys though. Compatible with GM Hybrid Passlock Passkey immobilizer systems like that use on 2004-2007 Chevrolet Malibu's. Check out other FullyDriven. I have the brown wire running from the IGN 1 lug to the resistor and the other side (green wire) going to the coil. This GM passlock bypass module is fast and easy, and it plugs into the OEM wiring. •This will allow you to install a remote starter and not have to purchase a bypass. Carefully tuck the three wires and resistor back through the hole in the left side of the radio cavity. please don't send me your spam or hate mail. Dashboard messages "Theft System Problem", "Car may not restart", "Starting Disabled Due To Theft System" T. 00 If this article helps you fix your GM Passlock Security Problem on your Pontiac Grand Am or Alero, put two dollars in an envelope and send it to:. these units sell on ebay for less than 30. Immediately following are equations for calculating cathode voltages, currents and resistances. Thousands of people are trying to bypass GM Security Systems the wrong way. found resistance out of these wires and matched a resistor to the vehicle as close as possible, but I think the tolerance needs to be closer on the passlock 3 system. Listed below is the vehicle specific wiring diagram for your car alarm, remote starter or keyless entry installation into your 2003-2007 Chevrolet Express Van. ATTENTION: If you came here looking how to "BYPASS" or "IMMOBILIZE" the problematic factory Passlock III security system on your GM car know this – This video and product shown DOES NOT "bypass" or "immobilize" the system. Product Description:. I went through the other passlock tread or most of it anyways. LED will flash an equal number of times to confirm selection. VATS, PassKey, and PassLock. Passlock uses a magnet in the lock cylinder and a hall effect sensor in the lock cylinder housing. To find these wires, look for three wires that at some point are wrapped together, coming from the ignition barrel. GM VATS Bypass Kit-652T. GM made several different types of anti-theft systems. Passkey 3 as well as the Passlock II resistor code immobilizer. Has your 9c1 passlock system cocked up since you installed the pljx kit? I have had problems in my 04' 9c1 with the passlock system. ; This kit can be used on passlock 1 and 2 or the original VATS (vehicle anti theft system); Can be used as a stand alone permanent bypass or interface for a remote starter; Comes with all the resistors found in GM cars 1 30a relay, prewied prewired socket and. ** Late production. - Passlock™ Code should be Valid Code. Hopefully, this will help elevate. It just requires a resistor instead of the passlock sensor. Now my truck runs smoothly. If not under warranty, you could go to a place that installs remote car starters and get them to disable the Passlock. This procedure is required because a remote start system will not function with the current Theft Deterrent System (Passlock) which is included on many 1996 and up GM vehicles. INSTASL YPLECLO-O1F-2OaLgeLo21fFoo TYPE 1 - WIRE CROSS REFERENCE CHART - 3 OF 3. cut the yellow small wire from ign. It has a magnet in the cylinder that generates a voltage when the key rotates the ignition switch. 3rd Brake Flasher Web Site GM VATS Bypass Module For LS1 and LT1 [gmvats] - VATS bypass module is intended for use when installing a GM engine equipped with VATS (Vehicle Anti-Theft System) into a vehicle missing the BCM (Body Control Module), when resistor type bypasses just wont work, or for use with remote starting applications involving stock vehicles equipped with VATS. the 3 wires should be yellow,black and red/white that your looking for. Here is information on the thridgen. Later versions include PassKeyII, PassKeyIII and PassLock (which uses no resistor "pellet"). Truck wont start. GM VATS Bypass Module Vats bypass module is intended for use when installing a GM engine equipped with the PASSkey I or II VATS (Vehicle Anti Theft System) into a vehicle missing the BCM (Body Control Module), or for remote start system. A quick google search of bypass passlock 2, and the colors for. See the GM V. Bypass/Isolation Control Module. If you got a points dizzy. Get the best free shipping; exchange program anywhere, and lowest prices -- guaranteed. waranty( take it back and havem check it out). GM made several different types of anti-theft systems. Program the bypass: 1) Select jumper position: Once all the PLJX bypass wiring is complete, you must select the Passlock 2 jumper position before proceeding 2) Program resistor code: a) Start vehicle with key b) Press and hold programming button. Add to that shipping and sales tax where applicable and you re looking at $35 for a resistor that you can pick up at Radio Shack for under $1! Another problem with the bypass modules is that you have to know what code value (1-15) to buy. As long as the common thief isn't aware of Passlock bypassing then theft deterrent works. Do I need a new ignition. It wasn't advertised about the ease of bypassing Passlock so easily. If not----a "resistor bypass" method that I have heard about is to---- strip a section of the Black Passlock wire. GENERAL MOTORS 25832354 (Only 3 Remaining). Shop by category. Re: How to Bypass the stupid GM passlock « Reply #10 on: July 14, 2009, 09:03:38 AM » things get more complicated and expensive. Directed DEI 652T • Resistors Pack / General Motors GM VATS Override Bypass Kit • Resistor Pack • General Motors GM VATS Override Bypass Kit • Great for charging capacitors • Package Contains 15 Resistors. This is one in a series of articles. alarm bypass in GM. The resistor code is activated when the ignition key is physically rotated in the ignition switch. This is a 98 truck that the garage changed out the ignition. I can't get my truck to start. I can find anyone that can verify this resistor method will work with my passlock system. note #1: vehicle is equipped with gm's passlock 2 anti-theft system and requires 791 bypass module, to order please go to the security bypass module page on this website. You can also attempt to do a passlock bypass - you don't have to kill the BCM; just fool it to think that the signal is being properly sent. Do I need a new ignition. I have a 97 6. However, now my "THEFT SYS" light is on all the time (we had problems getting the wiring correct, so it didn't work right away). While GM kept focusing on the input signal as the years went by, they totally forgot about the output signal. I guess I'm not the only one crying over this passlock junk. Impala - Finally a cheap passlock fix! - Had this done a couple of weeks ago. •Disable Pass Lock system to prevent from being stranded in the future. Compatible with GM Hybrid Passlock Passkey immobilizer systems like that use on 2004-2007 Chevrolet Malibu's. I believe it's got to do with the passlock system. The unit didnt come with installation instructions just a piece of paper directing you to a third party website where you had toPASSLOCK-SL2-V2 Docs & Guides. buut if the install is less than a year old its probably still under. VATS and Passlock I & II data bypass kit for Buick, Cadillac, Chevrolet, GMC, Hummer, Isuzu, Oldsmobile, Pontiac and Saturn vehicles. I have used the resistor trick and I have reset the security light but truck still doesn't run. They are Black (analog return), White (power), and Yellow (analog resistor data). You might have to bypass the security system or replace it. The vats bypass module is equipped with all 15 vats values. GM Passlock and VATS Transponder Key Bypass Module. Gm used the. The first generation PassKey systems incorporated a resistor pellet into the head of the key. Turn modification switch to the ON position (contacts open). The new switch is expensive ($300 +) depending on where it is purchased. It is commonly referred to as PassKey. In 1985, General Motors came out with their first Vehicle Anti Theft System known as VATS which uses a resistor pellet in the key. Hopefully, this will help elevate some of that. (Page 1 of 3). Bypass/Isolation Control Module. It prevents the car from starting with the wrong ignition key. 5V and the cathode resistor is 390ohm. How to bypass Passlock problems. At NEWROCKIES Inc. Omega AU-VAT GM VATS Passlock 1 & 2 resistor based anti theft Bypass Kit. Shipping Policy. VATS, PassKey, and PassLock. Why does the CAN bus use a 120 ohm resistor as the terminating resistor and not any other value? Ask Question has parts 2,3 and 5 which describe physical layers. Directed DEI 652T • Resistors Pack / General Motors GM VATS Override Bypass Kit • Resistor Pack • General Motors GM VATS Override Bypass Kit • Great for charging capacitors • Package Contains 15 Resistors. what wires do i - Answered by a verified Pontiac Mechanic. Passkey 3 uses a transponder in the key. To remotely start a car with this feature, you must bypass the PASSLOCK system. - Passlock™ State should be "Monitor Passlock™". Tahoe Forum - Chevy. I let it set and it did start, mean while I read in the manual that a blown fuse could disable the system and it would not be protected. Is this a passlock issue or an ignition issue. 4 quad four and it will start and die due to the Passlock. I’m fairly certain this is incorrect. These are collectively referred to as "data bypass" boxes. The ignition switch "start" I have it running to "s" on the starter solenoid. 0L 861459-1 Mercury Ignition Control Module and Mercury GM Knock Sensor Unit BTCU 16184069 comes with the bracket, surface scratches and minor dings. The GM VTD or Passlock system uses the body control module (BCM) and ignition lock cylinder to activate the start function. Once understood, it is very straight forward, a little bit of patience and intuition when reading the schematics. Most 1990 and earlier GM vehicles that used a vats system used a D seondary key. If you got a points dizzy. It involves installing a resistor that matches the resistor in your key under the dash. If you own a GM vehicle with PassKey iii system or a previous PassKey II or PassLock system and have a car won't start security light on, this article is for you. Recently did a bypass on my 2002 Impala to install a remote starter. if the lock cylinder and key are in good shape and there is no binding, try putting a 2. Understanding GM VATS (PassKey) This system seems to cause much confusion, stress, and misery. Weve put this tip sheet together to help you with your installation. note #2: the ignition switch harness is located behind the ignition switch. LED will come on solid. PassKey III system Fix PassKey III system Car won't start security light on. Passkey 3 as well as the Passlock II resistor code immobilizer. 2k ohm resistor and just forced it to relearn that resistance. If it's something like. Chrysler Gen2 & GM PK3+ Transponder Bypass w/ MUX output (PKUMUX) PKUMUX is an Immobilizer interface for GM-LAN vehicles equipped with the GM PASS-Key III Plus style hybrid Passlock & Passkey 3+ anti theft systems AND ALL 2nd generation encrypted Chrysler Sentry key immobilizers. However, now my "THEFT SYS" light is on all the time (we had problems getting the wiring correct, so it didn't work right away). Take the dash apart unsnap the cover around the gear selector find the passlock harness. 1965-1967 Corvette Side Exhaust Insulator Plated Washer Reproduction Of GM 3863851 CAVEAT EMPTOR: Zinc plated over sized fender washer covers the rubber insulator. Thanks everyone for the advice. Which is better? Well, here are my thoughts. antitheft. The bypass module generates the signal normally sent from the BCM to the PCM/ECM when the proper key is detected. This article describes how to troublshoot and fix a PassLock system. Get resistor(s) that come as close as possible to the value you had gotten. Understanding GM VATS (PassKey) This system seems to cause much confusion, stress, and misery. VATS stands for Vehicle Anti-Theft System. Explain how with the figure and small signal model. 5V and the cathode resistor is 390ohm. The cheapest (free) thing to try but may not work and make things worse - do a passlock relearn - see below for how and why/why not.