wireless door lock project, where to start?

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Thread Starter


Joined Jun 5, 2015
My car door locks work great.. But there is something wrong with my car key fob or the reciever end, found a wireless relay on ebay with a keychain remote and i want to Install it to my lock and unlock switch. so i can manually unlock and lock my doors with the wireless remote. It would be great also incase i ever leave my keys in the car.


This is the relay remote that i bought, do i just tap into the switch wires? Find the positive and negative?


Joined Aug 23, 2012
Welcome to the AAC forum.

The owners of All About Circuits have elected not to host discussions of automotive electrical system modifications/enhancements due to safety concerns, the potential of legal ramifications and the possible circumvention of vehicle regulations at the state and federal level.

This thread is against the AAC forum rules, Chapter 6, as seen here:

6. Restricted topics. The following topics are regularly raised and however are considered “off-topic” at all times and will results in Your thread being closed without question:

  • Any kind of over-unity devices and systems
  • Automotive modifications
  • Devices designed to electrocute or shock another person
  • LEDs to mains
  • Phone jammers
  • Rail guns and high-energy projectile devices
  • Transformer-less power supplies
This can be found in our Terms of Service (ToS)

Automotive modifications of any kind are strictly forbidden. Therefore, this thread will be closed.

Please try to understand the reasons behind this action, and feel free to browse and use the forums.

You might find answers to your questions in one of these forums:


Another good forum that shares many of the same membership is http://www.electro-tech-online.com/ . Good luck.
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