Jump to content

Headlight Reminder Buzzer


Recommended Posts

So, I have caught myself on 2 mornings leaving my lights on and come back to a dead battery at lunch. >:(


I thought, there has to be a way to remind my dumb ass like in newer cars...




Found similar information on other sites, but thought I would throw my set up out here since I couldn't find one on here.


Basically the positive and positive cancel themselves out when the ignition and headlights circuits are on, when the ignition circuit is off and the headlight circuit is on the buzzer gets a complete circuit from ignition circuit becoming a ground (AKA a floating ground). When the headlight and the ignition are off they're both grounds and therefor it's off.


I bought a 3VDC-18VDC buzzer from Radioshack, some fuse taps and wired it to the head light fuse and the signal fuse.



Here is how is works.


Ignition/Signal Fuse: On

Headlight: On

Buzzer (Black Wire: +)  & (Red Wire: + ) : OFF


Ignition/Signal Fuse: Off

Headlight: On

Buzzer (Black Wire: - )  & (Red Wire: + ) : ON


Ignition/Signal Fuse: Off

Headlight: Off

Buzzer (Black Wire: - )  & (Red Wire: - ) : OFF



Anyway, enjoy!




WIR-30200.jpg &2015-03-26T15:40:08.903Z-0060-m.jpg.258x


Below is the fuse box and a temporary testing setup pre fuse taps.




It does suck if you want your lights on when your car is off, but I would leave my lights on accident more than I would need to run my light with my car off. 




  • Like 3
Link to comment
  • Replies 3
  • Created
  • Last Reply

Top Posters In This Topic

Top Posters In This Topic

  • 2 months later...

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.

Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

  • Create New...

Important Information

By using this site, you agree to our Terms of Use.