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

1989 Function Select Switches

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Old Jul 15, 2017 | 09:12 PM
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Default 1989 Function Select Switches

Does anyone have a source for the Function Select switches on a 1989? These are the four double throw with center off switches on the instrument panel that select which parameters are displayed on the instrument cluster (like oil temp, oil pressure, avg MPG, etc.). Had the car out for a drive today, and one of them (MPG display) was intermittent.

I might be able to spray some contact cleaner in it, but would like to have a replacement before I disassemble the IP, just in case. I couldn't find any with my Google-Fu today...

Thanks,

Steve

Last edited by NavAir; Jul 15, 2017 at 09:13 PM.
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Old Jul 18, 2017 | 12:06 AM
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I don't think they are available as new parts. I found this DIC (Driver Information Center) on eBay:



I'd suggest this:

Buy a spare unit like the one above. Attempt a repair of your original (taking lots of pictures for the benefit of other C4 owners ) If the repair goes badly, you've got a replacement handy. If the repair is successful sell the backup unit on eBay.

I'm always grateful when people post pictures of the inner workings of these old C4 parts.

I hope you get it fixed!
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Old Jul 18, 2017 | 12:37 AM
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Yes, I saw a few of those on eBay after I posted. They seem to run about $50. Not too bad (as Corvette parts go). Definitely a possibility...

Last edited by NavAir; Jul 18, 2017 at 11:15 AM. Reason: typo
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Old Jul 18, 2017 | 08:30 AM
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Originally Posted by NavAir
Yes, I fsaw a few of those on eBay after I posted. They seem to run about $50. Not too bad (as Corvette parts go). Definitely a possibility...
It's the only possibility. Try here on the parts forum first
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Old Jul 18, 2017 | 09:42 AM
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If you're shopping eBay for spares OR here I believe you need to be very selective on the DIC you purchase. There seems to be variations of components (best I recall) for various years.

I've never looked @ Batee for interchange but I believe it could be important.

'89 looks to me to be maybe a single year assembly. Swapping components internally? Maybe!

Last edited by WVZR-1; Jul 18, 2017 at 09:45 AM.
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