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11-04-2017
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#1 |
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Join Date: Aug 2017
Location: merritt island fl
Posts: 25
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Brighter dash lights
Is there a way to make the dash lights on a '90 brighter during the daytime? I replaced all the bulbs but that didn't help. It's vert difficult to read, especially with sunglasses.
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11-04-2017
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#2 |
 
Join Date: Jun 2006
Location: Sparks, NV
Posts: 2,852
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Re: Brighter dash lights
It’s not the light bulbs. The ambient light sensor (photo cell) has gone bad. A common C4 issue. It is located in the upper left corner of the DIC panel above the buttons for the fuel data and such. You will see a small hole there, the sensor sits in there. I have the same issue. The sensor can be replaced by itself. This outfit does the repair or will send you the part (BATEE.com). Or, like me, you can replace the whole DIC unit. My fuel data buttons were intermittent so I decided to replace the whole thing.
H 
__________________
90'ZR-1 #1461 Red/Black Ported Intake, Degreed Cams, OBX Headers & Exhaust, Fidanza FW, Secondary Delete, Custom tune, C6 GS Wheels. Sold 08 C6 Z51 Crystal Red Metallic Sold Vararam Intake, Tune, Sold 05 C6 Z51 Red/Black Sold 90'ZR-1 #1723 Black/Gray Sold but not forgotten 91' Z51 L98 White Vert. My First, you always remember your first. Sold. Last edited by Ccmano; 11-04-2017 at 05:53 PM. |
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11-04-2017
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#3 |
 
Join Date: Feb 2012
Location: Ledyard,CT
Posts: 8,258
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Re: Brighter dash lights
Do you have the dimmer turned all the way up?
Maybe try a different type sunglasses! |
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11-04-2017
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#4 | |
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Join Date: Jun 2006
Location: Sparks, NV
Posts: 2,852
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Re: Brighter dash lights
Quote:
H
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90'ZR-1 #1461 Red/Black Ported Intake, Degreed Cams, OBX Headers & Exhaust, Fidanza FW, Secondary Delete, Custom tune, C6 GS Wheels. Sold 08 C6 Z51 Crystal Red Metallic Sold Vararam Intake, Tune, Sold 05 C6 Z51 Red/Black Sold 90'ZR-1 #1723 Black/Gray Sold but not forgotten 91' Z51 L98 White Vert. My First, you always remember your first. Sold. |
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11-04-2017
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#5 | |
  
Join Date: May 2007
Location: Peoria, AZ
Posts: 9,155
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Re: Brighter dash lights
Quote:
__________________
GOLDCYLON - 91 ZR-1 #2014 GOLDCYLON - 90 ZR-1 #2794, 4L60e (Formerly Schrade's) GOLDCYLON - 11 CTS-V Arizona State Director  91 WHITE/BLACK #2014. 380 P&P&PCed,Ported Heads, Jeal Long tubes, Corsa Exhaust/FIKSE FM-5s /LED TLs, LED Headlights, Front Wilwood 6 piston narrowlite calipers and rear Wilwood caliper street shop mod,CNCed Coolant Pipes,TPI Cvr,Filter cover,Stainless Bolts, DRM/DOM PROM /ZFDOC mod build #102,DRLs,BMAD with stainless Debris Screen,Coplan Air Blaster, Pioneer APP Radio 4,Brey-Krause HB,Sub Bar,Fire extinguisher seat mount,DRM Coilovers,LEDs everywhere,Compass mirror (orange),V1 DIC hidden display, Homelink sun visor, Carbon Fiber top x3 and APSIS Carbon Fiber interior, APSIS CF Steering Wheel/NAPA Leather, Banski trailing arms, Guldstrand front suspension,urethane bushings from Prothane (total suspension) ZFDoc drive shaft safety loop, raptor shift light (orange),AO engineering louver front plate, Console seat cushion, 96CE seats with black custom Sheepskins, ss billet catch can,Viper remote entry/alarm,Cragar Rear Louvers,LED side louver lights, Dewitts Radiator with SPAL fans and a Woods 160 T-Stat 90 RED/BLACK #2794. 4L60e Automatic Stage V by RPM Transmission, TCI Dedicated TCM, OBX Stainless Headers, Corsa Exhaust, SAN Secondaries and Haibeck PROM, Exotic Muscle Coil overs, LED Interior Lights, LED Tail Lights, LED Headlights, 94 Sport seats with black custom Sheepskins , Cragar rear louvers, GS Front calipers, Banski Trailing arms, APSIS Carbon Fiber steering wheel, Front and Rear Baer Eradispeeds, DRLs, Guldstrand front suspension,urethane bushings from Prothane (total suspension), Dewitt's Raditor with Dual SPAL fans and a Haibeck 170 T-Stat 11 RED/GREY CTS-V |
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11-09-2017
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#6 |
 Join Date: Jul 2005
Location: Jupiter, Fl.
Posts: 815
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Re: Brighter dash lights
The display on my 91' looks faded out and weak, hard to read. Is that what
You're talking about? Does replacing the sensor give greater contrast? Or do you have to replace the whole DIC? (Dash Instrument Cluster?) What's the best source for this? Price? Thanks. |
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11-09-2017
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#7 | |
Join Date: Jul 2007
Location: Bartlett, IL
Posts: 7,169
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Re: Brighter dash lights
Quote:
you are going to need a new LCD polarizing film if your display is faded
__________________
1990 Corvette ZR-1 #1051 Watson Headers (2" Primary) - Flowmaster Cats - Borla Catback Late Model IH - Plenum Coilovers - 4.10s Custom Interior NCM Lifetime Member #978 |
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11-09-2017
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#8 |
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Join Date: Oct 2004
Posts: 1,890
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Re: Brighter dash lights
OP - if the LCD seems presentable/acceptable with no sunglasses then quite likely your issue is with the "polarization" of your sunglasses. You could maybe spend much money on the cluster improvements and if your glasses are polarized your very likely to still have issues.
FLORIDA hints maybe "polarized" eye wear! |
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11-09-2017
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#9 |
Join Date: Nov 2007
Location: Squires (near Ava MO in the Mark Twain N'tl Forest) - Missouri
Posts: 6,493
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Re: Brighter dash lights
In the mean time, if you switch on your fog lights, the DIC brightens and becomes visible, even w/ sun glasses - at least true for my non-polarized "sunnies".
__________________
Good carz, good food, good friendz = the best of timez! 90 #1202 "FBI" top end ported & relieved Cam timing by "Pete the Greek" Sans secondaries Chip & dyno tuning by Haibeck Automotive SW headers, X-pipe, MF muffs Former Secretary, ZR-1 Net Registry |
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11-09-2017
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#10 |
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Join Date: Jun 2006
Location: Sparks, NV
Posts: 2,852
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Re: Brighter dash lights
There are three major known issues with the 90+ C4 instrument pod.
1. Poor day time illumination. This is a lighting issue caused by the failure of the photo cell as discussed above. 2. Fading of the central lcd display. This is caused by failure of the lcd display itself and can result in the display characters virtually disappearing. This is the issue the second OP likely has. 3. Incorrect tach readings. Sometimes the tach needle will peg itself to the top or bottom of the display but generally just a noticeably inaccurate tach. Caused by failure of the control chip for the tach. As noted polarized sunglasses can have an affect similar to #1 and 2. However that is easily eliminated by simply elvaluating the display without wearing them. These items can all be resolved by the company Paul noted above. They can either do the work for you or sell you the parts to do it yourself. H
__________________
90'ZR-1 #1461 Red/Black Ported Intake, Degreed Cams, OBX Headers & Exhaust, Fidanza FW, Secondary Delete, Custom tune, C6 GS Wheels. Sold 08 C6 Z51 Crystal Red Metallic Sold Vararam Intake, Tune, Sold 05 C6 Z51 Red/Black Sold 90'ZR-1 #1723 Black/Gray Sold but not forgotten 91' Z51 L98 White Vert. My First, you always remember your first. Sold. |
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