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Viper 412V

Keyless entry system

Item # 607412V

Do you have one of those trucks or SUVs that lets you unlock all the doors at once, but only by inserting the key...

Read more from Crutchfield writer, Buck P.

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About the Viper 412V

Remote control your power door locks

Do you have one of those trucks or SUVs that lets you unlock all the doors at once, but only by inserting the key in the driver's side lock? Viper comes to the rescue with their 412V keyless entry system that'll give you convenient, wireless remote control of your existing power door locks up to a quarter mile away. Pre-programmed functions include parking light flash, horn honk, and dome light control. Two auxiliary outputs let you program even more functions, like popping the trunk, for example. The 412V system is compatible with most security and remote start systems.

Remote control your power door locks

Do you have one of those trucks or SUVs that lets you unlock all the doors at once, but only by inserting the key in the driver's side lock? Viper comes to the rescue with their 412V keyless entry system that'll give you convenient, wireless remote control of your existing power door locks up to a quarter mile away. Pre-programmed functions include parking light flash, horn honk, and dome light control. Two auxiliary outputs let you program even more functions, like popping the trunk, for example. The 412V system is compatible with most security and remote start systems.

IMPORTANT:
If you know how to use a multimeter and have experience working with your vehicle's electrical system, you should be able to install this keyless entry system yourself. If not, please consider having your system professionally installed.


To ensure vehicle compatibility, please enter your vehicle information. Your order will be reviewed by our Car Experts group, who will contact you if further information or recommended accessories are needed.

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Product highlights:

  • keyless entry system
  • compatible with most car alarm and remote start systems
  • two 4-button remote transmitters
  • 3 channel Clone-Safe® Code-Hopping®
  • blue LED status indicator
  • onboard door lock relays
  • dome light supervision
    • activates the dome light for 30 seconds after being unlocked
  • horn honk
    • honks horn once when locking and twice when unlocking
    • panic button honks horn for 30 seconds
  • parking light flash
  • two auxiliary outputs
  • valet button
  • warranty: limited lifetime
  • Our 60-day money-back guarantee
  • MFR # 412V
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What's in the box:

  • Keyless entry module
  • Two 4-button keychain remotes
  • 18-pin Wiring harness with 28" wires with inline 15A fuse on power wire and 15A fuse on lock/unlock input wires
  • Valet button with 72" wire terminated in a 2-pin plug
  • Blue LED with 58" of wire terminated in a 2-pin plug
  • Installation guide
  • Owner's guide

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Viper 412V Reviews

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More details on the Viper 412V

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Features

Overview: The Viper 412V keyless entry system lets you add remote operation to your vehicle's existing power door locks. It features built-in door lock relays with ignition control, dome light supervision, parking light confirmation flash, as well as 2 auxiliary outputs for adding optional remote operated conveniences.

Door Locks: The 412V's built-in lock and unlock relays can integrate into most any vehicle's door lock system (additional parts may be required for some vehicles). Door locks can be activated with one of the included 4-button remotes and include other operational configurations such as:

  • Passive Locking: The Passive Locking feature, if activated, will automatically lock the doors 30 seconds after the ignition has been turned off. This feature requires that the Failsafe Starter Kill feature be turned on first to access Passive Locking. If the system is unlocked with the remote, it will re-activate the door locks in 30 seconds if the ignition isn't turned on during that time.
  • Progressive Door Unlocking (Driver's Priority Unlocking): The 412V can be configured to allow the driver's door to be unlocked with the first push of the unlock button and unlock the rest of the doors with a second push within 15 seconds. Additional parts will be required to wire in this feature for most vehicles.
  • Comfort Closure: This feature is designed to integrate with vehicles that can close the power windows or a sunroof by holding the key in the driver's door lock position. If this feature is programmed on, the door lock output will activate the Comfort Close output for 20 seconds. If during that time the system is unlocked, the Comfort Close output will stop.
  • Double Pulse Unlock: Some vehicles require two pulses on a single wire to unlock the doors. When this feature is activated, the Blue/Black unlock wire will output two negative pulses instead of one.
  • Double Pulse Lock: Similar to the Double Pulse Unlock, this provides a two pulse door lock output for certain vehicles equipped with a factory "deadbolt" lock system.
  • Door Lock Pulse Duration: Some European vehicles use a vacuum pump locking system that requires longer lock and unlock pulses. The 412V's default setting is 0.8 seconds, but can be changed to 3.5 seconds or 0.4 seconds. This last option is used by some vehicles to prevent the windows from moving during locking.
  • Ignition-Controlled Door Lock/Unlock: This feature allows the door locks to activate 3 seconds after the ignition is turned on and unlock when turned off.

Parking lights: The Viper keyless entry system includes a high-current parking light output, both positive and negative, to flash the parking lights while locking and unlocking. An internal jumper allows the polarity to be switched for either type parking light system.

Dome Light Supervision: The 412V can activate the dome light for 30 seconds after being unlocked with the remote control, allowing for better visibility at night. The provided Dome Light Output wire gets tied into the vehicle's dome light wire while the Dome Light Input wire gets tied to either +12 V or ground, depending on the polarity of the factory dome light system.

Ground When Armed Output: The Ground When Armed Output wire provides a 500 mA ground as long as the system is armed/locked. This is used for automatically activating optional add-on features such as a Failsafe Starter Kill relay or a window roll-up module.

Auxiliary Outputs: Two Auxiliary Outputs are provided on the 412V. Channel 2 supplies a 200 mA ground output when the Aux button on the remote is pushed for more than 1.5 seconds and will continue outputting as long as the button is held. This is most commonly used to operate a trunk-release or other relay-driven functions. When Channel 3 is programmed for use, it will output a 200 mA ground output as long as both lock and unlock buttons are pressed simultaneously, typically used for activating an add-on remote starter or window roll-up module.

Horn Honk: The Horn Honk Output wire will provide a 200 mA ground output to honk the vehicle horn once when locking and twice when unlocking the doors. It will also output pulses for 30 seconds if Panic Mode is activated. Vehicles with a positive horn system will require an additional relay (sold separately) to provide +12 V to the horn wire. Note: The horn will only honk when the system is in audible mode, by either pressing the Lock button on the remote a second time within 5 seconds or by pressing the Aux button prior to pressing Lock or Unlock.

Valet Button: A push-button Valet switch is included, which allows access to the programmable features such as Passive Arming and Door Lock Pulses. It also serves as an emergency override if a starter kill relay is installed and the Failsafe Starter Kill feature is activated. If the keychain remote is lost, the system can be "disarmed" and the starter kill relay released, by turning the ignition key On and pressing the Valet button once within 10 seconds. This button is also used to put the system into Valet mode which prevents it from automatically locking/arming and activating the Failsafe Starter Kill feature while having the vehicle serviced or left with a parking attendant. The Valet button should be mounted in a hidden location, but easily accessible by the driver. It will require drilling a 9/32" hole and needs approximately 1" of clearance behind it.

LED Status Indicator: A dash-mountable blue LED is provided to display the status of the keyless entry system at any time, as well as provide visual confirmation while programming optional features. Multiple LEDs can be wired together in a series configuration, but care should be taken to never wire blue LEDs with red ones. The LED indicator requires drilling a 9/32" hole and approximately 1" of clearance behind it.

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Customer Q&A

Q
Crutchfield asked: Why did you buy this?
A
Works with both our Hondas and Travis was a great help in selecting the right equipment for both what I wanted to do and the model I have. He's a credit to Crutchfield. [ Anthony  Feb 07, 2019 ]
A
well it looked like the one I need and Cosmo confirmed it Thanks [ George  Aug 08, 2018 ]

2 questions already asked

Q
I have a 2002 Toyota 4Runner with a bad receiver for the remotes to operate the doors lock/ unlock. Will this work for my vehicle I just want to unlock my doors.?
[ Wil  Sep 07, 2018 ]
1 answer
A
If you have powered door locks, yes, you can use this system to provide keyless entry. For additional assistance and personalized recommendations, feel free to contact us directly by phone or through our online chat service: https://www.crutchfield.com/support/ContactUs.aspx
[ Ryan  Sep 14, 2018 ]  Staff
Q
I have a 1970 that has power locks, but obviously not keyless entry. I'm looking to install a viper alarm also. Do I need this also or will the alarm provide keyless entry?
[ Ryan  May 01, 2018 ]
1 answer
A
It depends on the specific alarm model and if it provides keyless entry (most do). You may also need to add some door lock relays (again; depending on the model) For additional assistance and personalized recommendations, feel free to contact us directly by phone or through our online chat service: https://www.crutchfield.com/support/ContactUs.aspx
[ Ryan  May 09, 2018 ]  Staff

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