 Seatbelt interlock, best way to defeat? |
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| High Path |
 Feb 6 2010, 07:50 AM
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#1
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Newbie  Group: Members Posts: 26 Joined: 29-June 09 From: Edina, MN Member No.: 10,516 Region Association: Upper MidWest  |
What is the best way to defeat the interlock on a 1974?
How does the interlock function, i.e. what does it prevent from happening to keep the car from running? |
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| pcar916 |
Feb 6 2010, 08:39 AM
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#2
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Is that a Lola? Group: Members Posts: 1,524 Joined: 2-June 05 From: Little Rock, AR Member No.: 4,188 Region Association: None 
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I see on the wiring diagram that both seat-belt switches (and their things) get their power from and are grounded by an electronic "Seat-belt warning system relay and integrated buzzer" (J-34 on the diagram).
I don't know that the car won't start since mine was disconnected (read unplugged) when I got the car. but there are only two states... shorted or not. Somebody will know this, but if it were me: 1. take the passenger seat out 2. unplug the switch 3. Turn the ignition on (no starter of course) If the buzzer buzzes, then short the two wires and make it go out. Should take you 30 minutes with a 10mm rachet. Good luck! QUOTE(High Path @ Feb 6 2010, 05:50 AM)  What is the best way to defeat the interlock on a 1974? How does the interlock function, i.e. what does it prevent from happening to keep the car from running? |
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| SLITS |
Feb 6 2010, 09:18 AM
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#3
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"This Utah shit is HARSH!" Group: Benefactors Posts: 13,602 Joined: 22-February 04 From: SoCal Mountains ... Member No.: 1,696 Region Association: None  |
Under passenger seat, look at the relay assembly. Two big yellow wires ... disconnect and splice them together ... no more interlock and car will start.
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| zx-niner |
Feb 6 2010, 12:37 PM
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#4
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Member Group: Members Posts: 294 Joined: 13-June 05 From: Las Vegas, NV Member No.: 4,269 Region Association: Central California |
As left photo after I removed the entire component:
 The whole process was somewhate intuitive after a bit of review of the wiring diagram. The main thing is getting a good splice of the yellow ignition wire. |
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| jt914-6 |
Feb 6 2010, 12:55 PM
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#5
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Driving & working on teeners 41 years Group: Members Posts: 1,787 Joined: 3-May 08 From: Bryant, Arkansas Member No.: 9,003 Region Association: South East States |
As been said, connect the yellow wires together. There is a black wire with a red stripe that is hot with the key. Tape the end of it off so it won't ground out......
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| JeffBowlsby |
Feb 7 2010, 08:54 PM
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#6
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914 Wiring Harnesses & Beekeeper Group: Members Posts: 9,266 Joined: 7-January 03 From: San Ramon CA Member No.: 104 Region Association: None
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The easiest way is to use a double male connector, its easily reversible. I am told this is the way dealers did it. (IMG:style_emoticons/default/biggrin.gif)
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| windforfun |
Feb 8 2010, 06:33 PM
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#7
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Advanced Member Group: Members Posts: 2,099 Joined: 17-December 07 From: Blackhawk, CA Member No.: 8,476 Region Association: None
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BTW, the seat will come out by sliding it all the way forward. No tools are required.
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