Topic: ignition buzzer

[silverelvis69]

Hi All,
Found this plug behind glove box.
Could this be the plug for ignition buzzer?
I also read potentional position is passenger near radio on bracket?

Any help would be great.
Is it plug and play?

[Anghelrestorations]

Yes...thats exactly what that is for.

There is a second optional buzzer that could have been on the car as a headlight warning buzzer.  Think that was a 5 prong connection in the same area of the harness/dash. 

[midlife]

I believe that is the door ajar buzzer, or at least that's what I call it!  It works when the ignition is on and the driver's side door is open.

[70cj428]

As mentioned, that's the plug for the buzzer that buzzes when the keys in the ignition and the doors opened. the buzzer itself has a square plastic post on the top that fits in a square hole in a mounting bracket ad is locked in by rotating the buzzer 45 degrees or so. Here's a few pics of where it goes from the Ford wiring diagrams (#13). If the car had the Convience group option, it used a different buzzer with 2 sets of terminals and a second plug on the convience group harness (along with that plug) plugged into it. (The convience group option added a second buzzer that buzzed if you left your headlights on and turned the key off) Hope this helps, John 

[silverelvis69]

I believe that is the door ajar buzzer, or at least that's what I call it!  It works when the ignition is on and the driver's side door is open.

I take it ... If you have the convenience group for this plug?

Cant see to locate this..

Oh well happy to find ignition buzzer..Hope its not too annoying but started tinkering this idea when I rode with my mates XB and had the buzzer and thought....How cool.
Although..Short duration as I guess it would get annoying.

[silverelvis69]

I believe that is the door ajar buzzer, or at least that's what I call it!  It works when the ignition is on and the driver's side door is open.

Is this for convenince group?

[midlife]

Negative; it is standard in all 1970 underdash harnesses.  The convenience harness adds the headlight on buzzer.

[RocketScientist]

I was told that the buzzer was installed on cars after Jan 70 and I was wondering if this is correct?

[jwc66k]

I was told that the buzzer was installed on cars after Jan 70 and I was wondering if this is correct?

There may be a "after" entry date shown in the listing in Ford Car Parts (aka MPC) which is located in this forums' library.
Jim

[cobrajet_carl]

I was told that the buzzer was installed on cars after Jan 70 and I was wondering if this is correct?

None of my cars built before then have an ignition buzzer. My January and March cars have it.

[midlife]

Just for kicks and giggles, there are 2 variants of wiring for this buzzer connector: one with 2 wires and another with 3.  The additional wire is a Run-only line that goes to the center pin of the connector.  I have no idea which came first...

[Anghelrestorations]

The ignition buzzer (ignition key removal warning buzzer) was not installed on all 70 Mustangs.  It was rolled into production probably around September 1969.  If you look at a 1970 Mustang Owners Manual (2nd edition) dated around September 1969 they have a notice page that is added in there that mentions that buzzer may or may not have been added in your car.  So that would make you think around this time frame they were working to add them to all.  So as the model year progresses you would have them in all Mustangs. 

Trying to see if I can get a photo that shows that page......

[Anghelrestorations]

Got these from Mike Bauman who had the second edition print Owners Manual for his October built car....

2023-06-05_13-58-11 by Marcus Anghel, on Flickr

2023-06-05_13-57-51 by Marcus Anghel, on Flickr

2023-06-05_13-57-24 by Marcus Anghel, on Flickr

[silverelvis69]

well waiting for NOS buzzer to arrive (like a kid for Santa)
My car was built October 69 so Hoping this buzzer works when I plu it in from adaptor at beginning of these post.

Fingers crossed

[silverelvis69]

Well This sux

After 2 months wait - igniition buzzer arrived.

Plugged it in.

Not working?

Where should I look? Not very technical.