2001 - no DIC display - no buttons
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Joined: Aug 2005
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From: western mass
2001 - no DIC display - no buttons
Hi group -
The DIC in my C5 has gone dark - no display, buttons have no effect. Car runs fine - just no DIC. Oddly,the headlights come on - twilight feature must have toggled on by itself/?
This related Corvette Forum thread shows the board that carries the VFD (vacuum fluorescent display). Internal parts of the cluster are not sold separately - so the selected cure in that case was to replace the whole IPC.
In a different DIC failure thread visible burn damage is found on the small board beside the main VFD board. A replacement for just the small board cured this one.
I haven't found internals available for sale - so I'm looking to buy a whole working cluster for parts.......
The DIC in my C5 has gone dark - no display, buttons have no effect. Car runs fine - just no DIC. Oddly,the headlights come on - twilight feature must have toggled on by itself/?
This related Corvette Forum thread shows the board that carries the VFD (vacuum fluorescent display). Internal parts of the cluster are not sold separately - so the selected cure in that case was to replace the whole IPC.
In a different DIC failure thread visible burn damage is found on the small board beside the main VFD board. A replacement for just the small board cured this one.
I haven't found internals available for sale - so I'm looking to buy a whole working cluster for parts.......
Last edited by RB01C5; Nov 2, 2020 at 11:14 AM.
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From: western mass
Thanks - I've ordered it. It is described as working but "makes noises" (??) I'm hoping it has what I need to fix my DIC.
The bit about "noise" is curious - the cluster is all electronic, but it does have a small speaker - for alerts ?
The bit about "noise" is curious - the cluster is all electronic, but it does have a small speaker - for alerts ?
Last edited by RB01C5; Nov 2, 2020 at 08:40 AM.
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From: Prague, Czech rep., EU
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From: Anthony TX
CI 6,7,8,9,11 Vet
St. Jude Donor '08
Don't get rid of your old cluster. That VFD power supply can be easily swapped out and you can retain the OEM Cluster. The mileage is also contained on one IC that can be transplanted into any working cluster.
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From: western mass
Thanks Bill, I was hoping you might comment. I'm expecting a working cluster 11-2 or 11-3. Was thinking I'd plug it in first to be sure it works, then try swapping its VFD power supply into my unit. Take care, Dick B
Last edited by RB01C5; Nov 7, 2020 at 07:03 AM.
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Thread Starter
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Joined: Aug 2005
Posts: 50
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From: western mass
My display is working again 
- swapping in the power supply from the replacement cluster did the trick. Everything works normally. As Bill said above its an easy swap and doesn't affect the odometer.
BTW my original power supply board has no visible defects - no burns, no smells, no cold solder joints - just doesn't light the display.
- swapping in the power supply from the replacement cluster did the trick. Everything works normally. As Bill said above its an easy swap and doesn't affect the odometer.BTW my original power supply board has no visible defects - no burns, no smells, no cold solder joints - just doesn't light the display.
