Seatbelt interlock
Thread Starter
Burning Brakes
Joined: Jan 2010
Posts: 884
Likes: 84
From: New Boston, NH
Seatbelt interlock
Did all 75s come with seatbelt interlock, and if not, how do you know if the car was originally equipped? I want to replace the wiring harness in the dash and have to choose between a harness with or without the interlock. My car's seatbelt buckles have wires oming from the bottom of each, but I can't find anywhere they would connect to. As always, any and all help is appreciated.
Bryan
Bryan
Le Mans Master
Joined: Aug 2006
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From: mount holly NC
2025 c3 ('74-'82) of the Year Finalist - Unmodified
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Only early '75s had the interlock, do you have this silver box with the orange base on your firewall?
Thread Starter
Burning Brakes
Joined: Jan 2010
Posts: 884
Likes: 84
From: New Boston, NH
Thread Starter
Burning Brakes
Joined: Jan 2010
Posts: 884
Likes: 84
From: New Boston, NH
Bryan
Melting Slicks
Joined: Apr 2001
Posts: 3,399
Likes: 278
From: Olmsted Falls, Ohio
My April 75 car did not have the interlock hardware on the firewall, BUT the wiring was on the seat belts. I figure they eliminated this "safety feature" but still used the seat belt assemblies they had in stock.
There were a lot of complaints about this piece of "protection" not working correctly before it was eliminated.
There were a lot of complaints about this piece of "protection" not working correctly before it was eliminated.
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Burning Brakes
Joined: Jan 2006
Posts: 1,223
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From: Fort Wayne IN
Ignition interlock. It is just a relay that is on the purple wire between the key and the starter relay. It would not let you start the car until the seatbelts were fastened, or, you had to turn the key to on, open the hood, get out and press that little button on the relay to manually close the contact, close the hood, get back in, start the car.
Drifting
Joined: Jul 2008
Posts: 1,873
Likes: 27
From: Sonora CA
Ignition interlock. It is just a relay that is on the purple wire between the key and the starter relay. It would not let you start the car until the seatbelts were fastened, or, you had to turn the key to on, open the hood, get out and press that little button on the relay to manually close the contact, close the hood, get back in, start the car.