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

New Digital Dash stopped working???

Thread Tools
 
Search this Thread
 
Old Jan 26, 2019 | 05:49 PM
  #1  
Mr. Magoo's Avatar
Mr. Magoo
Thread Starter
Team Owner
20 Year Member
Liked
Loved
Community Favorite
 
Joined: Jun 2000
Posts: 22,379
Likes: 94
From: Damn taxes! Pimpin' Ain't Easy in Massachusetts
2018 C4 of Year Finalist
St. Jude Donor '03-'04-'08-'09
Default New Digital Dash stopped working???

I reciently purchased a new/refurbished Digital gauge cluster for my ‘86 Corvette. It was working fine for months and now I noticed today it doesn’t work at all.
I checked all the fuses, tail lights work, all other dash/door lights work.
The gauges don’t light up at all, totally black with or without lights on.

Any ideas?

Thanks,
Mark
Reply
Old Jan 26, 2019 | 08:39 PM
  #2  
3D-Aircrew's Avatar
3D-Aircrew
Melting Slicks
Supporting Lifetime Gold
15 Year Member
Veteran: Navy
 
Joined: Nov 2007
Posts: 2,830
Likes: 147
From: Gainesville FL
Default

Originally Posted by Mr. Magoo
I reciently purchased a new/refurbished Digital gauge cluster for my ‘86 Corvette. It was working fine for months and now I noticed today it doesn’t work at all.
I checked all the fuses, tail lights work, all other dash/door lights work.
The gauges don’t light up at all, totally black with or without lights on.

Any ideas?

Thanks,
Mark
I recently bought one for an 1986 from an ebay seller. Arrived DOA sent it back to be fixed and it came again DOA so I got my money back and took my core to batee.com.

I know that some refurbishers don't replace the power supply but rather replace the capacitors on the old power supply. If the power supply fails it can go dark. Also take a flashlight and look to see if the LCD digits are working … if they are then it may be the connector pin solder connections between the 2 boards.
Reply
Old Jan 26, 2019 | 10:19 PM
  #3  
Mr. Magoo's Avatar
Mr. Magoo
Thread Starter
Team Owner
20 Year Member
Liked
Loved
Community Favorite
 
Joined: Jun 2000
Posts: 22,379
Likes: 94
From: Damn taxes! Pimpin' Ain't Easy in Massachusetts
2018 C4 of Year Finalist
St. Jude Donor '03-'04-'08-'09
Default

Bought it on eBay (Gary’s Corvettes), they have 100% feedback, problem is I bought it back in August and I’m not sure they’ll take it back. Probably drove the car twice since then.
Took a flashlight to it and nothing, totally dead.
Very frustrating!!
Reply
Old Jan 27, 2019 | 12:32 AM
  #4  
zachaeous's Avatar
zachaeous
Melting Slicks
10 Year Member
Veteran: Army
 
Joined: Mar 2012
Posts: 2,800
Likes: 456
From: USA
Default

I exchanged mine with him and had no problems. He is also a member on the forum and posts wanting to buy c4 dash units from time to time in the parts section. I would contact him and see what he says. I would at least think he would give you some guidance as to what to check. Sounds to me like the power supply as posted above. Good luck getting this resolved.

Last edited by zachaeous; Jan 27, 2019 at 12:34 AM.
Reply
Old Jan 27, 2019 | 08:25 AM
  #5  
Mr. Magoo's Avatar
Mr. Magoo
Thread Starter
Team Owner
20 Year Member
Liked
Loved
Community Favorite
 
Joined: Jun 2000
Posts: 22,379
Likes: 94
From: Damn taxes! Pimpin' Ain't Easy in Massachusetts
2018 C4 of Year Finalist
St. Jude Donor '03-'04-'08-'09
Default

Originally Posted by zachaeous
I exchanged mine with him and had no problems. He is also a member on the forum and posts wanting to buy c4 dash units from time to time in the parts section. I would contact him and see what he says. I would at least think he would give you some guidance as to what to check. Sounds to me like the power supply as posted above. Good luck getting this resolved.
Thanks!
Looks like they have a 1 year warranty according to their website, I’ll contact them on Monday.
Reply
Old Feb 15, 2019 | 10:08 AM
  #6  
Mr. Magoo's Avatar
Mr. Magoo
Thread Starter
Team Owner
20 Year Member
Liked
Loved
Community Favorite
 
Joined: Jun 2000
Posts: 22,379
Likes: 94
From: Damn taxes! Pimpin' Ain't Easy in Massachusetts
2018 C4 of Year Finalist
St. Jude Donor '03-'04-'08-'09
Default

Returned the cluster and was told it works perfectly, as a precaution they even replaced the power supply.
So what else could it be, why when plugged in it doesn't work?
I checked all the fuses (I can recheck), is there something else I should be looking for?
Reply
Old Feb 15, 2019 | 11:28 AM
  #7  
3D-Aircrew's Avatar
3D-Aircrew
Melting Slicks
Supporting Lifetime Gold
15 Year Member
Veteran: Navy
 
Joined: Nov 2007
Posts: 2,830
Likes: 147
From: Gainesville FL
Default

Originally Posted by Mr. Magoo
Returned the cluster and was told it works perfectly, as a precaution they even replaced the power supply.
So what else could it be, why when plugged in it doesn't work?
I checked all the fuses (I can recheck), is there something else I should be looking for?
I think you need to check the pins on your connectors -- PM'd you something ... maybe a power connection or a bad ground. Do you see the LCDs with a flashlight?

Last edited by 3D-Aircrew; Feb 15, 2019 at 11:44 AM.
Reply
Old Feb 15, 2019 | 02:03 PM
  #8  
auto_cran's Avatar
auto_cran
Instructor
20 Year Member
Liked
Loved
Community Favorite
 
Joined: May 2006
Posts: 177
Likes: 14
From: Plano TX
Default

Definitely check the ground - driver's side, right above the oil filter. I couldn't believe how loose it was on my '84. All my digital dash woes went away after I cleaned and tightened it up.
Reply
Corvette Stories

The Best of Corvette for Corvette Enthusiasts

story-0

10 Ugly Corvettes That We Still Kinda Love

 Joe Kucinski
story-1

Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer

 Brett Foote
story-2

10 Things Every Corvette Owner Needs (2026 Edition)

 Michael S. Palmer
story-3

8 Most "Only Corvette Owners Understand" Quirks and Problems

 Pouria Savadkouei
story-4

10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years

 Joe Kucinski
story-5

How Much Horsepower Every Corvette Engine "LOST" in 1972

 Joe Kucinski
story-6

Top 10 DOs and DON'Ts for Protecting Your Convertible Top!

 Michael S. Palmer
story-7

Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!

 Joe Kucinski
story-8

150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter

 Joe Kucinski
story-9

8 Coolest Corvette Pace Cars (and Replicas) of All Time

 Verdad Gallardo
Old Feb 15, 2019 | 06:24 PM
  #9  
3D-Aircrew's Avatar
3D-Aircrew
Melting Slicks
Supporting Lifetime Gold
15 Year Member
Veteran: Navy
 
Joined: Nov 2007
Posts: 2,830
Likes: 147
From: Gainesville FL
Default

Originally Posted by auto_cran
Definitely check the ground - driver's side, right above the oil filter. I couldn't believe how loose it was on my '84. All my digital dash woes went away after I cleaned and tightened it up.


Also there is a ground for the instrument cluster under the carpet on the drivers side left footwell left of your ankle..
Reply

Get notified of new replies

To New Digital Dash stopped working???





All times are GMT -4. The time now is 05:25 PM.

story-0
10 Ugly Corvettes That We Still Kinda Love

Slideshow: 10 ugly Corvettes that we still kinda love.

By Joe Kucinski | 2026-06-03 10:34:17


VIEW MORE
story-1
Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer

A lot of money has changed hands at the online auction house over the years.

By Brett Foote | 2026-06-03 10:21:50


VIEW MORE
story-2
10 Things Every Corvette Owner Needs (2026 Edition)

Slideshow: 10 great gifts Corvette enthusiasts actually want for Father's Day!

By Michael S. Palmer | 2026-06-03 15:43:40


VIEW MORE
story-3
8 Most "Only Corvette Owners Understand" Quirks and Problems

Slideshow: These are the quirks, annoyances, and oddly lovable problems that every Corvette owner eventually learns to live with.

By Pouria Savadkouei | 2026-05-28 09:31:39


VIEW MORE
story-4
10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years

Slideshow: 10 reasons why the C6 Z06 is still a performance benchmark after 20 years.

By Joe Kucinski | 2026-05-27 17:20:09


VIEW MORE
story-5
How Much Horsepower Every Corvette Engine "LOST" in 1972

Slideshow: How much horsepower every Corvette engine lost in 1972.

By Joe Kucinski | 2026-05-27 16:54:53


VIEW MORE
story-6
Top 10 DOs and DON'Ts for Protecting Your Convertible Top!

Slideshow: How to Protect A Convertible Top: 10 DOs & DON'Ts

By Michael S. Palmer | 2026-04-03 00:00:00


VIEW MORE
story-7
Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!

Slideshow: The 10 most explosive Corvettes ever built based on power-to-weight ratio.

By Joe Kucinski | 2026-05-20 07:23:03


VIEW MORE
story-8
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter

Slideshow: From C1 to C8 we compare every Corvette generation by the numbers.

By Joe Kucinski | 2026-05-12 16:54:12


VIEW MORE
story-9
8 Coolest Corvette Pace Cars (and Replicas) of All Time

Slideshow: Some Corvette pace cars became collectible legends, while others perfectly captured the look and attitude of their era.

By Verdad Gallardo | 2026-05-11 09:50:51


VIEW MORE