C4 Corvette Digital Instrument Cluster Rebuilding Service

1984, 1985, 1986, 1987, 1988, 1989

This is a rebuilding service offered by Corvette Salvage for a C4 Digital Instrument Cluster which can be installed on any of the following Corvette models:

Common Digital Instrument Cluster Problems:

1. Backlight Issues – This is the most common repair required for 1984 to 1989 Corvette Digital Instrument Clusters. Over time, heat and vibration cause power connections to wear out which result in failing bulbs. In addition, excessive amount of sunlight can cause the photocell within the cluster to degrade leading to a completely dim cluster face. The Backlight Repair Package (Option A) will address these issues.
2. Faded LCD – This seems to be a common problem in areas with hot climates. Over time, excessive exposure to sunlight and heat can cause the film on the front of the cluster’s LCD panels to fade which makes the information displayed on the cluster hard to read. The LCD panels should be black when the ignition is off. If yellow, green or red colors appear, the polarizing film has faded. The Faded LCD Repair Package (Option B) will address this issue.
3. Power Supply Failure – A faulty internal power supply is another common problem within the 1984 to 1989 Corvette Digital Instrument Clusters. Electrolytic capacitors which have a finite lifespan of 17 to 25 years are used throughout the cluster. Heat and vibration can cause the capacitor’s soldered joints to fail. Also, accidental reverse jump starts and 24V jump starts can cause the power supply to fail. The Power Supply Repair Package (Option C) will address these issues by replacing the power supply with a new supply designed with modern surface mounting components. Best of all, the new power supply has an ultra-low standby current draw which will minimize the battery draw when your car is stored for months at a time.
   

Package Repair Options:

1. The Backlight Repair Package (Option A) will fix the following issues:
   • When the ignition is on, the cluster remains dark and the information can’t be seen.
   • Hitting the dashboard or a bump causes the cluster to work/not work properly.
   • Shining a flashlight on the cluster causes the information to suddenly appear.
   • The cruise control won’t set.
   • The automatic transmission won’t go into Overdrive.
   • Information can be seen on the cluster during the day, but not at night.
2. The Faded LCD Repair Package (Option B) will fix the following issues:
   • The LCD panels light up, but the information can’t be read unless polarized sunglasses are used.
3. The Power Supply Repair Package (Option C) will fix the following issues:
   • When the ignition is on, the cluster remains dark and the information can’t be seen.
   • Shining a flashlight on the cluster causes the information to suddenly appear.
   • Information shown on the cluster is gibberish and not valid numbers.
   • Hitting the dashboard or a bump causes the cluster to work/not work properly.
   • In certain scenarios, the fuse marked LCD blows.

If you are unsure which repair option(s) you may need, select the “Bill Me Later” option and Corvette Salvage will assess your Digital Instrument Cluster when it is shipped to us and determine which repair options you need. We will then send a bill for the remaining repair balance. Once paid, we will ship your cluster back to you.

All Package Repair Options Include the following:

• Free Inspection of the Digital Instrument Cluster’s Internal Parts.
• Complete Inside Cleaning of the Digital Instrument Cluster, including the LCD Contacts, LCD Panels and Light Diffusers.
• Bench Test of Bulbs, Backlight Dimmer, Speedometer, Tachometer and all other Gauge Functions.
• 1 Year Warranty on Parts and Labor.

After ordering, please send your Digital Instrument Cluster to the following address:

Dino’s Corvette Salvage, LLC

3545 Hwy 43 North

Picayune, MS 39466

GM Part Numbers: