Seat Belt Warning System
USA models have a seat belt warning system — if the seat is occupied, the weight switch sounds a buzzer unless the belt is fastened. The buzzer is located under the dash to the left of the steering column.
Switch
The front seats have a weight-activated switch. It is important to get the switch in the correct position (see FSM for specific locating details).
Warning Lamp
To supplement the buzzer sound, 1972-1/2 (starting January 1972) and 1973 models also have "Warning" lamp prominently situated on top of the dash.
[[1972#29368|
]] [[1972#29369|
]]
Seat belt warning lamp
the front seats are equipped ...
http://i194.photobucket.com/albums/z112/fly5465/Datsun1200/int2.jpg
Wiring
Seat Belt Buzzer wiring schematic: starting in mid-1972 when the Lamp was added, the simple buzzer changed to a buzzer/relay unit.
1971 to mid-1972
1971 Switch Wiring Colors (and 1972 models without lamp):
- White - to warning buzzer
- Red - to 15A fuse in Fuse Box (IGN side), L (blue) wire at box
Buzzer
- Red - through door switches to ground (BR wires on door switch)
- W - to warning switch
Here is a 1971 dash showing where it bolts:
mid-1972 to 1973
Switch Wiring Colors (1973 models, and 1972 models with Warning Lamp)
- ? - to warning buzzer
- Black/Red - to 15A fuse in Fuse Box (IGN side), L (blue) wire at box
Warning Buzzer
- BR - through door switches to ground
- B - ground/earth
- BR - to warning switch
1200s with dash-top warning lamp changed connectors
Similar looking to non-USA TCVAS#Water_Temperature_Thermostat relay
Part Numbers
Main: Buzzer & Warning
https://i297.photobucket.com/albums/mm219/ddgonzal/Datsun%201200/USA/028-03.jpg
