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Old Feb 9, 2014 | 09:07 PM
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cal camara's Avatar
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Default What is this part
What is this part, it has a black, lt brown, blue and yellow wire. You can see it attached to the top of my dash under dash. 4 pin 1972 Convertible.

thanks
cal

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Last edited by cal camara; Feb 9, 2014 at 09:34 PM.
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Old Feb 10, 2014 | 12:29 AM
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looks like a blinker mechanism and jeebus do I never ever ever wanna pull the dash and deal with that spaghetti!
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Old Feb 10, 2014 | 07:15 AM
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I think it's the TCS relay based on the location but that's too many wires
M
Last edited by Mooser; Feb 10, 2014 at 07:21 AM.
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Old Feb 10, 2014 | 07:42 AM
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What's your serial number? I know early 72's have a seatbelt warning system that automatically comes on, and then turns off after a certain amount of time. Later 72's have seatbelt warning system that is activated by the retractors, and passenger seat sensor.

If its an early 72, it could be the timer relay for the seatbelt system. I don't know when the crossover was, but my December build, 9550, has the later system.

Also, I believe that the seatbelt timer is supposed to be attached to the center top dash support that mounts to the firewall and screws into the top dashpad.
Last edited by Mashman; Feb 10, 2014 at 07:45 AM.
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Old Feb 10, 2014 | 07:56 AM
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Chevrolet part #3996297, is listed as the TCS Spark Relay for the 72 Corvette, as well as other Chevrolets.
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Old Feb 10, 2014 | 10:43 AM
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Originally Posted by gbvette62
Chevrolet part #3996297, is listed as the TCS Spark Relay for the 72 Corvette, as well as other Chevrolets.
That's it. Thanks now I can figure it out.

Thanks again.

Now to find the seat belt buzzer stuff.

Cal
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Old Feb 10, 2014 | 11:18 AM
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Originally Posted by cal camara
That's it. Thanks now I can figure it out.

Thanks again.

Now to find the seat belt buzzer stuff.

Cal
If it can help, the seat belt buzzer stuff on my '76 is behind the passenger map tray, tucked again the A-pillar.
Often the connector is there but the buzzer itself is gone.
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Old Feb 10, 2014 | 12:46 PM
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Originally Posted by Denpo
If it can help, the seat belt buzzer stuff on my '76 is behind the passenger map tray, tucked again the A-pillar.
Often the connector is there but the buzzer itself is gone.
I'll check, thanks
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Old Feb 10, 2014 | 01:06 PM
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Originally Posted by Denpo
If it can help, the seat belt buzzer stuff on my '76 is behind the passenger map tray, tucked again the A-pillar.
Often the connector is there but the buzzer itself is gone.
I'll check,
Thanks
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Old Aug 12, 2024 | 02:58 PM
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Default Relay ID
That relay part number 3996297 is for vacuum Advance relay for TCS system
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Old Aug 14, 2024 | 06:05 PM
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Originally Posted by jpd396
That relay part number 3996297 is for vacuum Advance relay for TCS system
Hopefully they've figured it out by now....

M
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Old Aug 14, 2024 | 06:13 PM
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Originally Posted by jpd396
That relay part number 3996297 is for vacuum Advance relay for TCS system
You are responding to a 10 year old thread.
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