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

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Old Jul 16, 2010 | 08:32 AM
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Default Dashhhhh-ouuuttttt

The Dash Gauges Arent lighting up...............any suggestions or easy fix tips
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Old Jul 16, 2010 | 09:26 AM
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Year would be helpful
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Old Jul 16, 2010 | 10:19 AM
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its an 85 I thought it might fuses but not really sure the center facing seems to be working well
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Old Jul 16, 2010 | 03:15 PM
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Originally Posted by crossfiremisfire
its an 85 I thought it might fuses but not really sure the center facing seems to be working well
Welcome to the forum. You probably have burned out bulbs in your dash. This tool below is your friend.

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Old Jul 16, 2010 | 03:22 PM
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Default Are the LCD elements working?

Originally Posted by crossfiremisfire
The Dash Gauges Arent lighting up...............any suggestions or easy fix tips
If you shine a flashlight at your display you can tell if the LCD elements are functioning.


with Corvette Mike that it's likely just bulbs. If the dash is stone dead then it could be more serious.
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Old Jul 16, 2010 | 07:02 PM
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Default Been There; Done The Search; Got The Fix

I have two 89s and have replaced the digital dash lights in both. Use the search tool to find a wealth of information on this forum on how to do it.

One quick question: Are the left and right turn signals plus the high beam indicator illuminated when you turn on the power? If so, it's a bad ground to the digital cluster and the internal bulbs may be okay. Search specifically for whatever symptoms your digital display has for the best results.

Good Luck with the search!
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Old Jul 17, 2010 | 08:29 PM
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Beachcomber is right. There are a couple of places where the ground connection commonly deteriorates in the "Atari" dashes. The first is under the dash, I forget exactly where, but it might be at the inside temp sensor ground location. The second place is in the digital dash itself. there are two circuit boards inside the unit, connected by a multi-pin connector. One of the pins is the ground, easily noted by the slightly charred appearance. If you clean that connection, the dash will often work. I would tell you the exact one, but it has been a couple of years since I fixed mine. If you are good with a solder gun, it is worth adding a drop of solder to the connection.

Last edited by Former Ford Boy; Jul 17, 2010 at 08:37 PM. Reason: to correct reference to another post
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Old Jul 17, 2010 | 10:10 PM
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Originally Posted by rharker
If you shine a flashlight at your display you can tell if the LCD elements are functioning.


with Corvette Mike that it's likely just bulbs. If the dash is stone dead then it could be more serious.
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