Seat belt buzzer

[CameronTaylor]

I'm having problems with the seat belt buzzer. It continually buzzes even if the truck is in park, and never goes off even after driving down the road. I have located the fuse diagram, but don't know where to find it in the truck, or even if that is the problem. Thanks for any insight.

[jaredts]

What year truck is this?  I know on some vehicles you could just unplug the seat belt buckle, but I don't know that any of our trucks have a switch in the buckle.  Did it just buzz for a few seconds before and then go off?

[zieg85]

Are you sure it isn't the key switch that is buzzing.  I never thought or had any truck that had a buzzer for the seat belt...

[78 Chevyrado]

find the cab schematics, not the dash ones.  there's a wire that goes to the drivers side seatbelt. 

The buzzer is strictly for the seatbelt.  If you have the seatbelt on BEFORE you start the truck, It should NOT buzz.  It should only buzz when you start the truck the drivers side seatbelt is not fastened. 

IIRC  it's near where the horn relays are, there is a little black box hanging on the wire loom, with a tiny speaker grille on it.  you just unplug that box and it cant buzz because that is the speaker for it.  It won't make anything non-functional, just anything requiring the buzzer wont buzz. I have removed this on every truck but my current one.

Sounds like you may have other problems if it's buzzing all the time, so before you remove the buzzer, at least get it back to where it acts like it should.  check for bad grounds and shorted wires that may have worn through the insulation on the super sharp sheet metal under the dash.

[bake74]

     I am with 78 chevyrado, more than likely it is a short or even a faulty seat belt.  I have had many a truck where the actual seat belt where you clip it together go bad and just stay's buzzing, I have taken some apart and fixed, but in my experience they don't last too long, so now I just replace the seat belt part if that is what is wrong.

[PromiseKeeper]

isnt there a connector at the bottom of the belt near the floor on the driver's side?

[VileZambonie]

For now just unplug the chime module and when you have time pull the steering wheel and see if the contactor is broken.

[HAULIN IT]

Are you sure it isn't the key switch that is buzzing.  I never thought or had any truck that had a buzzer for the seat belt...

I'm in agreement with Zieg...not saying "They didn't make them in our trucks!", but I don't recall ever being aware of one. Ignition buzzer yes (mine still works by the way...drives the wife nuts, so I leave the keys in it & open the doors alot).
The wire on the driver's seatbelt (to my knowledge) is only for the "fasten seatbelt" lamp in the gauge cluster. Lorne
 

[CameronTaylor]

Well, sounds like there are a lot of different versions of stuff going on here. It IS the actual seatbelt buzzer because it only makes noise when the red "fasten belts" indicator lights up on the dash. It's a 78 silverado, and it only stops buzzing when the actual belt is pulled out from the pillar. Sounds weird huh? Doesn't seem to have anything to do with the buckle itself.

I actually got sidetracked on this project as last week when I was driving home the temperature gauge ground caught fire. In the process of changing it, I messed up the oil pressure gauge as well. Now I got them replaced, and the aforementioned buzzer started working correctly too. So, Who knows, maybe just gonna be a quirk about this truck. Thanks for all the replies. I will definitely be using this site a lot in the rebuild of the interior since I got the exterior all spick and span!

[bake74]

Well, sounds like there are a lot of different versions of stuff going on here. It IS the actual seatbelt buzzer because it only makes noise when the red "fasten belts" indicator lights up on the dash. It's a 78 silverado, and it only stops buzzing when the actual belt is pulled out from the pillar. Sounds weird huh? Doesn't seem to have anything to do with the buckle itself.

I actually got sidetracked on this project as last week when I was driving home the temperature gauge ground caught fire. In the process of changing it, I messed up the oil pressure gauge as well. Now I got them replaced, and the aforementioned buzzer started working correctly too. So, Who knows, maybe just gonna be a quirk about this truck. Thanks for all the replies. I will definitely be using this site a lot in the rebuild of the interior since I got the exterior all spick and span!

     Logically speaking, if the buzzer only went off when you pulled the belt out from the pillar, than you should assume the switch is in the pillar or connected to the base of that belt.
     Since your other problems occurred, and you fixed them and in the same time fixed the buzzer problem, you would think that it had something to do with the electrical circuit of the buzzer.  If the buzzer in the future starts not to work right again start with the electrical circuit first.
     Glad to hear it is working, even though you actually did nothing to that circuit to fix it.