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ISO Warning Buzzer & 3-Wire Door Switch - 1973 240z

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I am looking for a working buzzer for a 1973 240z and the 3-wire door ajar switch that makes it work with the steering lock switch. This buzzer sounds when the key is on while the door is open. The 3-wire switch completes the circuit for the buzzer if both conditions are met.

See photos for examples.

Preferably NOS, but nice working condition will work. Please keep your fees reasonable. I have a source for these already but am looking for them in nicer condition.

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• Advertiser
  Matthew Abate
• Date
  03/11/2024
• Price
• Category
  Parts Wanted
• Year
  1973
• Model
  240z

 

Am I close?

The switch is not new, but in good shape.  Might have a better one.

The 73 buzzer is a different animal. I haven't studied the other wiring diagrams enough to know if it was used earlier. According to the factory wiring diagram, the buzzer @Matthew Abate is looking for has 3 wires. Two are positive feeds, diode isolated, and one ground wire. One of the positive wires goes through a set of normally closed contacts at the driver's side door switch. Those contacts are connected to two of the 3 wires on that switch. Only one of the wires on the driver's door switch grounds on the switch.

Dang things are attached to the pedal boxes, not something I saved many of. I know a guy with a 73, maybe it’s still on there.

Well looky here.

yes, it works. The most miserable little annoying buzz ever

Been outside attached to this pedal box for ages.  

Edited March 13, 20242 yr by zKars

That is DEFINITELY the one. It has the diodes and everything.

Oh for heavens sake. 

Now that I know what I’ looking for, all of these are labelled as “Horn”and have the same connector.

Also found another style of early buzzer

Do NOT ask me why I didn’t just look at Matthew’s picture in the original post for this ad to see what I was looking for…   Old people, jeez….

 

Edited March 13, 20242 yr by zKars