C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

How does the odometer on 84-89 Vettes work ?

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Old Jan 10, 2020 | 08:36 AM
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Wojciech Bogacz's Avatar
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Default How does the odometer on 84-89 Vettes work ?

Hi guys !

Thou this is my first post I already have an interesting question

Does anyone know the way that odometer works ? I Mean there are two wires coming into this small unit so it's being controller electrically - but are there some "impulses" (change of voltage) or it's being pushed forward in another way ?
Maybe it would be possible to make a digital version of it to match the rest of the dashboard ??
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Old Jan 10, 2020 | 11:40 PM
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Batee.com has the most detailed information available related to cluster.
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Old Jan 11, 2020 | 09:05 AM
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There is a sensor located the rear axle that measures the rotations and that information is processed by the ECM and sends that electrical pulse to the odometer....
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Old Jan 11, 2020 | 11:41 AM
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Welcome to the Corvette Forum Wojciech Bogacz!

The suggestion to speak or contact BATEE.COM is a wise one if you want a correct technical answer.

The C4 Digital dashboard is a part that Needs to be updated. There are many components that need to be replaced to keep the dash functional for a few more years. You can ship him the dash or you can do the work yourself if you are good at soldering wires on an old PC board. They sell the parts to fix or update your digital dashboard. I rebuilt mine and the C68 A/C controller as well. Some of the electrical components had a 15 year life expectancy and mine were over 32 years old. Now the dash is bright and easily readable and I no longer have to tap on various places to get the dash to work.

Modern cars use digital odometers but converting a C4 to do that might be too much of a challenge. I am sure that BATEE.COM can help you with this idea!

Best regards,
Chris
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