78 C3 Buzzer ASM
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Joined: Jun 2012
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From: Dayton Nevada
78 C3 Buzzer ASM
I've finally reached a point where I can start back on the wire harness.
On the old harness there was small box with 4 connection tangs on one side and 2 on the other. Them AIM shows the item with a wire tail and connector that goes to the fuse block. It is called a Buzzer ASM.
Mine dose not have the tail, I have opened it up and there is no sign of a wire being attached at any time. The AIM date is 1-25-77 upc is 12L sheet 3 Heading of "78 CORVETTE "Y" 464887. I had tried to test it and got a weak sound, that prompted me to open it what I found was the points were stuck, I cleaned them.
I am not sure if this is a Seatbelt warning buzzer, ignition buzzer or a combination buzzer covering Key, Belt, ect.
The numbers on the back side are partially removed. Two sets /
top row Last three 595 bottom row 31.
???????
On the old harness there was small box with 4 connection tangs on one side and 2 on the other. Them AIM shows the item with a wire tail and connector that goes to the fuse block. It is called a Buzzer ASM.
Mine dose not have the tail, I have opened it up and there is no sign of a wire being attached at any time. The AIM date is 1-25-77 upc is 12L sheet 3 Heading of "78 CORVETTE "Y" 464887. I had tried to test it and got a weak sound, that prompted me to open it what I found was the points were stuck, I cleaned them.
I am not sure if this is a Seatbelt warning buzzer, ignition buzzer or a combination buzzer covering Key, Belt, ect.
The numbers on the back side are partially removed. Two sets /
top row Last three 595 bottom row 31.
???????
Last edited by Douglas Brown; Jan 8, 2014 at 10:55 AM.
Intermediate
Joined: Sep 2012
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From: Tucson AZ
The T63 pigtail was for an optional "Light Minder" monitor, not sure, but think it was only available on 77-78 models years. My 78 has that extra lead....(yet to be tested). I'm thinking that if headlights are left on, maybe it's supposed buzz?
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From: Southbound
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From: Dayton Nevada
Intermediate
Joined: Sep 2012
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From: Tucson AZ
It looks like the light green wire of the two wire connector finally ends up at the backup light switch and the orange wire ends up going to a multipoint connection where alot of other orange wires connect, more than likely a positive (+) circuit as those wires are fed by a 20 amp fuse in the fuse panel. Saw a NOS Buzzer Assy advertised for $299, these little parts are killers to replace!
Team Owner
Joined: Jun 2000
Posts: 38,923
Likes: 1,481
From: Southbound
Cruise-In II Veteran
I don't honestly know, but I had a hunch the buzzer could be GM generic and used on other GM makes. I googled the part umber and it pops up on Buicks and possibly other makes.
If the "vacant" connector was used on your car, the same section of the AIM you're in should show what plugged into it.
If the "vacant" connector was used on your car, the same section of the AIM you're in should show what plugged into it.
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Thread Starter
Pro
Joined: Jun 2012
Posts: 603
Likes: 11
From: Dayton Nevada
I don't honestly know, but I had a hunch the buzzer could be GM generic and used on other GM makes. I googled the part umber and it pops up on Buicks and possibly other makes.
If the "vacant" connector was used on your car, the same section of the AIM you're in should show what plugged into it.
If the "vacant" connector was used on your car, the same section of the AIM you're in should show what plugged into it.
Thanks again
Thread Starter
Pro
Joined: Jun 2012
Posts: 603
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From: Dayton Nevada
It looks like the light green wire of the two wire connector finally ends up at the backup light switch and the orange wire ends up going to a multipoint connection where alot of other orange wires connect, more than likely a positive (+) circuit as those wires are fed by a 20 amp fuse in the fuse panel. Saw a NOS Buzzer Assy advertised for $299, these little parts are killers to replace!
Thanks
Thread Starter
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Joined: Jun 2012
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From: Dayton Nevada
I am trying to label the wire connectors for correct connections..some is no problem others I have no idea...the old harness was burned & melted..I have an idea this was a salvage yard build that never got finished, just enough to run.
Racer
Joined: Mar 2011
Posts: 480
Likes: 42
From: Los Angeles CA
The wire that is shown in the diagram is gray on my 77. The wiring diagram does not show it. The other 2 connectors at the bottom are one orange and one pink in the same connector. They look like they go to the shop lamp switch. I hope this helps.
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From: Dayton Nevada
Thread Starter
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Joined: Jun 2012
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From: Dayton Nevada
Not to offend anyone...but I have been looking for the buzzer box as some call it..I get responses from salvage yards, e-bay, corvette shops, private persons..." I have one or two maybe three" ..then when I ask how much...no reply..or does it work..no reply....
Can I see a picture of it, I do not want to buy with out knowing if it works, is it the right one. I have been burnt before. And it goes the other way too..I have items for sale..when I say make me a reasonable offer Your not offending me, I under stand we all do not have a pocket full of change, least of all me. But come on we have to start with an offer to make this work.
Ok I done...02 cents worth.
Can I see a picture of it, I do not want to buy with out knowing if it works, is it the right one. I have been burnt before. And it goes the other way too..I have items for sale..when I say make me a reasonable offer Your not offending me, I under stand we all do not have a pocket full of change, least of all me. But come on we have to start with an offer to make this work.
Ok I done...02 cents worth.
Melting Slicks
Joined: Sep 2011
Posts: 3,372
Likes: 215
From: Peoria Arizona
Please post up what you find. I may be interested in replacing this part as well.