HUD problems
Racer
Joined: Oct 2006
Posts: 357
Likes: 79
From: Marysville Washington
2023 Corvette of the Year Finalist - Unmodified
2022 C1 of the Year Winner - Unmodified
Try your second remote. My HUD would work sometimes but no all the time then I figured out that one remote had the HUD turned off.
Administrator
Joined: Mar 2001
Posts: 368,644
Likes: 24,870
From: In a parallel universe. Currently own 2014 Stingray Coupe.
C7 of the Year - Modified Finalist 2021
MO Events Coordinator
St. Jude Co-Organizer
St. Jude Donor '03 thru '26
NCM Sinkhole Donor
CI 5, 8 & 11 Veteran
Moved to C6 Tech.
Corvette Stories
The Best of Corvette for Corvette Enthusiasts
5 Best & 5 Worst Corvette Daily Drivers
Joe Kucinski
The Headlights of Every Corvette Generation Explained
Joe Kucinski
5 Best & 5 Most Overrated Corvette Track Packages of All Time!
Joe Kucinski
Every 2027 Corvette Engine Explained
Joe Kucinski
Designer Imagines A Corvette That Looks More Like a Corvette Than the Corvette
Verdad Gallardo
10 Ugly Corvettes That We Still Kinda Love
Joe Kucinski
Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer
Brett Foote
10 Things Every Corvette Owner Needs (2026 Edition)
Michael S. Palmer
8 Most "Only Corvette Owners Understand" Quirks and Problems
Pouria Savadkouei
Safety Car
Joined: Dec 2006
Posts: 4,595
Likes: 1,676
From: Pearland / Houston Tx
Diagnostic steps:
Circuit/System Testing
Ignition OFF, disconnect the harness connector at the HUD.
Test for less than 1.0 ohm of resistance between the HUD ground circuit terminal 6 and ground.
⇒ If greater than 1.0 ohm, test the HUD ground circuit terminal 6 for an open/high resistance.
Verify a test lamp illuminates when connected between the HUD battery positive voltage circuit terminal 1 and the ground circuit terminal 6.
⇒ If the test light does not illuminate, test the HUD battery positive voltage circuit for an open/high resistance.
Verify a test lamp illuminates when connected between the HUD dimming up switch signal circuit terminal 11 and B+ while pressing the HUD dimming up switch.
⇒ If the test light does not illuminate, test the HUD dimming up switch signal circuit for a short to voltage or an open/high resistance. If the circuit test normal, replace the HUD.
Verify a test lamp illuminates when connected between the HUD dimming down switch signal circuit terminal 12 and B+ while pressing the HUD dimming down switch.
⇒ If the test light does not illuminate, test the HUD dimming down switch signal circuit for a short to voltage or an open/high resistance. If the circuit test normal, replace the HUD.
If all circuits test normal, test or replace the HUD switch.
Circuit/System Testing
Ignition OFF, disconnect the harness connector at the HUD.
Test for less than 1.0 ohm of resistance between the HUD ground circuit terminal 6 and ground.
⇒ If greater than 1.0 ohm, test the HUD ground circuit terminal 6 for an open/high resistance.
Verify a test lamp illuminates when connected between the HUD battery positive voltage circuit terminal 1 and the ground circuit terminal 6.
⇒ If the test light does not illuminate, test the HUD battery positive voltage circuit for an open/high resistance.
Verify a test lamp illuminates when connected between the HUD dimming up switch signal circuit terminal 11 and B+ while pressing the HUD dimming up switch.
⇒ If the test light does not illuminate, test the HUD dimming up switch signal circuit for a short to voltage or an open/high resistance. If the circuit test normal, replace the HUD.
Verify a test lamp illuminates when connected between the HUD dimming down switch signal circuit terminal 12 and B+ while pressing the HUD dimming down switch.
⇒ If the test light does not illuminate, test the HUD dimming down switch signal circuit for a short to voltage or an open/high resistance. If the circuit test normal, replace the HUD.
If all circuits test normal, test or replace the HUD switch.
Race Director
Joined: Sep 2009
Posts: 11,352
Likes: 2,445
From: Eastern
At dark, if you look down into the HUD, do you see a green hue? If you do, then that means that your mirror pivot points have broken. You can remove the HUD
and repair the pivot points yourself. You tube video on the repair is available.
and repair the pivot points yourself. You tube video on the repair is available.
Team Owner
Joined: May 2000
Posts: 53,888
Likes: 5,654
From: Plantation Florida USAF(Retired) 1966-1990
U.S. Air Force
St. Jude Donor '05 thru '26
NCM Sinkhole Donor
http://www.c6registry.com/Technical/manuals/2005OM.pdf
Pro
Joined: Nov 2013
Posts: 664
Likes: 320
From: Houston, Texas
GOOD LUCH - YOU CAN DO IT!!!11
Melting Slicks
Joined: Aug 2004
Posts: 2,928
Likes: 229
From: Oakbank Manitoba
Search in the C6 tech section for a write up I did a few years back.
https://www.corvetteforum.com/forums...ght=HUD+repair
https://www.corvetteforum.com/forums...ght=HUD+repair
Last edited by KENS80V; Nov 25, 2021 at 07:08 PM.