Starter Interlock System

turbotim1Member

Installed my new distributor last night and drove the car..everything seems great. I noticed as I was driving, my seat belt light flickering, and the buzzer sounding slightly. Now I had jumpered my sensor under the seat many months ago so the buzzer and light would work until I fasten my seat belt(or the park brake set will turn off the light and buzzer too). Anyway the two wires under the seat had come loose and was touching the seat, grounding and causing the buzzer to sound. No big deal right? Just reattach the two wires and back to normal....wrong! I went to start he car and no cranking...then I remembered that relay box in the front trunk...pushed the red button..bang! Started right up. Shut the engine off...try to start it again..nothing....push that little red button again...yep..starts no problem.
So...did that interlock module under the dash somewhere decide to go south?...I am thinking maybe I could just bypass that switch in the front trunk and it will start anyway.
Never a dull moment. I remember cars of this year, no start unless seatbelt fasten...I wonder if somehow this system has been activated...need to figure the best approach to override this system. Thanks again for any suggestions.

6/2/0711:36 AM

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George PAdmin.

To repair your flickering seat belt warning lamp, check the switch on the parking brake and the switches on both seats. One of those 3 switches is shorting to ground.

The quickest override is to render the switch on the parking brake lever permanently open, by removing a wire. If the switch indicates the parking brake is engaged (open circuit) the interlock module will not intervene. The buzzer & light will never function however.

Shorting the seat belt retractor switches to ground will indicate to the interlock module that both driver & passenger are belted, and also prevent interlock intervention. As above, this will also prevent the buzzer & warning light from operation.

The trunk mounted interlock bypass switch has two red wires connected to it. Shorting those wires permanently bypasses the interlock, so it will never prevent starting the car again. This will leave the buzzer & seat belt warning light functional.

I think it is a good idea to remove all power from the interlock module, so the damn box doesn't fail & burn your car down. There are two circuits supplying power to the module.

The light blue/black stripe wire connected to fuse 9 at the fuse block partially supplies power to the interlock module. Removing that wire from the fuse block will disable one of the two circuits supplying power to the interlock module.

One of the grey wires connected to fuse 11 also suplies power to the module (and the buzzer and the seat belt warning lamp). That circuit can be isolated from the interlock module by disconnecting one of the two grey wires connected to the seat belt buzzer, taping its end and leaving it permanently disconnected.

cowboy from hell

6/2/072:27 PM

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