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Misc. part help

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Old Oct 18, 2021 | 07:49 PM
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Default Misc. part help

Hi guys,
was reinstalling the center gauge cluster on my 78 today and I found this laying up under the dash. I have no clue where it came from, if I broke it somehow or what it’s for. Can anyone tel from these photos what this is


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Old Oct 18, 2021 | 07:54 PM
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Either low fuel or seat belt warning light..time to take it our again
Leaning low fuel..

Last edited by interpon; Oct 18, 2021 at 07:58 PM.
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Old Oct 18, 2021 | 08:01 PM
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I believe all the warning lights are part of the flexible circuit board on the back of the gauge cluster. I just replaced all these bulbs and installed a new flexible circuit board. It has for bulbs, 2 on each side of the gauge cluster for the warning lights
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Old Oct 19, 2021 | 07:50 AM
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That is the LOW FUEL warning light module.
You will see #10 is your Circuit from your Fuel Sending Unit in fuel tank. #10 first passes through your Fuel Gauge.
On my 77 the light will come on with approximately 3 gallons of fuel in the tank.
If you just use a standard bulb socket & bulb to fill that hole in the gauge cluster the bulb will shine anytime the ignition switch is turned on. It is powered by #11, Ignition Circuit.
If your car wasn't equipped with the ZX2 Convenience Group Package the hole in the cluster would have had a bulb socket and NO bulb installed.
Here is the PCB circuit layout for the 77-78.


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Old Oct 19, 2021 | 08:05 AM
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Since you have the module out, I would bench test it.
Install a known good bulb.
My repaired original module shines in about 22 seconds once power is applied.
Module Test LINK: http://repairs.willcoxcorvette.com/1...-instructions/
My LOW FUEL module repair LINK:
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