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Timers.Shop

GM VATS PASSkey II Bypass Module for LS1 and LT1 Painless

  • Based on 355 reviews
Condition: New
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Availability: In Stock.
Fulfilled by Amazon
Arrives Sunday, Apr 26
Order within 17 hours and 36 minutes
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Features

  • Bypass GM VATS security bypass
  • Both 50 and 30 Hz output
  • Only three wires to connect
  • Made in USA.

Description

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. The VATS bypass module generates the ‘key ok’ signal normally sent from the BCM to the PCM (Powertrain Control Module) or ECM (Engine Control Module). VATS bypass module wires: RED: 12V ignition of accessories WHITE: Fuel Enable wire. 50hz or 30hz. BLUE/GREEN: Control wire. If none of the wires connected to the ground then the output is 50 Hz suitable for most of the cars. Some cars (90-93) require 30 Hz. In that case connect the Blue wire to the Ground. BLACK: Ground. Download manual at

Brand: Timers.Shop


Compatible Devices: GM vehicles with PASSkey I or II VATS


Remote Control Included?: No


Manufacturer: GMVATS


Compatible Devices: GM vehicles with PASSkey I or II VATS


Includes Remote: No


Brand: Timers.Shop


Manufacturer: GMVATS


Mfr Part Number: GMVATS


Model Number: 13


Unit Count: 1.0 Count


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Sunday, Apr 26

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

  • Klarna Financing
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  • Afterpay Financing
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  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Similar Products

Top Amazon Reviews

    • Worked great on 94 cadillac fleetwood
Worked great in my 1994 cadillac fleetwood brougham with the lt1 engine. My car would start and then die immediately after. This product solved that issue. Working good so far.
Reviewed in the United States on March 13, 2026 by Amazon Customer
    • Easy to install - 1995 Firebird Formula LT1
Easy to install. My son and I are planning an LT1/T56 Swap from a 1995 Firebird Formulas into a 1986 Camaro IROC. Before pulling the drivetrain out of the Firebird, I wanted to eliminate the VATS system so we could use the 1986 Steering Column and Ignition Switch (non VATS car). Did my research and decided to try this device. Using the Factory Service Manual, we located the VATS theft deterrent device under the dash and reviewed the schematic. This VATS module has five wires but for the 1995 Fbird, you only use three: Red on module goes to Pink on the connector (Switched power), Black on Module goes to Black on Connector (Ground) White on Module goes to Blue on the Connector (Fuel Signal to ECM). At the same time, you must jumper yellow/black on the connector to black so that you ground the VATS starter relay to complete the starter circuit. By wiring the the starter this way, you retain the clutch safety switch/neutral safety switch. ... show more
Reviewed in the United States on May 2, 2022 by Amazon Customer
    • Get a chip made
Review Image by Jimmy C.
I bought this module for a 1991 F-body with an injector pulse issue and there are absolutely no installation instructions for the module whatsoever in the package. I then checked their website and talk about vague. The directions read that the fuel injector wire will be in the harness at F10 for TPI cars which would be great if there actually was an F10 in the plug. It then basically says if it’s not F10 it could be this one, or that one, or maybe even that one. If the manufacturer did the research and sent a diagram with their product I could justify the price but for $25 going into the garbage can I’m a bit disappointed. ... show more
Reviewed in the United States on August 25, 2020 by Jimmy C.
    • Works - Easy - Affordable Solution - Car Started Right Up!
I spent countless hours trying to get my car to start and run again. It's been down for several months due to VATS problems. I tried a much more expensive bypass module first and spent hours and hours trying to install under the dash only to determine I had to install using the alternate method of installing under the hood at the PCM/ECM. After getting properly connected the first device did nothing. I spent 3 weeks going back and forth with their tech person without resolution. This caused me to search for something else and I found this module on Amazon. It was 1/10 the price of the first module I tried. I figured I had nothing to lose. It came quickly, and installed in 5-10 minutes. And...my car started right up with no problems. I can't imagine a better solution. ... show more
Reviewed in the United States on November 5, 2019 by Amazon Customer
    • Dont buy it if you have a double sided key
This wont work if your trying to bypass vats on a later model gm so if you hace a double sided key buy a 2k resistor. Install the resistor by cutting the yellow wire splicing it in. Try start car leave key on until security light stops blinking tun key off wait 15 seconds do it again on the third try car will run bet that ... show more
Reviewed in the United States on August 17, 2024 by MikeH
    • Four Stars
Ignore the obnoxious directions on the web and just try all of the frequencies. It works.
Reviewed in the United States on March 31, 2018 by J. Day
    • Vats Bypass - Works Great
Worked perfect. Used to bypass VATS signal to ecu for fuel on 91 Camaro which used the 30 hertz signal. Install was easy and it functioned as intended.
Reviewed in the United States on May 26, 2025 by Joshua Jones
    • Excellent tool
Works great with the pats security systems and vats,.
Reviewed in the United States on January 6, 2025 by RICARDO C.

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