85 Dash Lights Dim

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Feb 3, 2003 | 01:24 PM

bubbaray

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Intermediate

Joined: Jan 2003

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From: Sullivan Mo

85 Dash Lights Dim

Why would my dash lights be bright when the key is on and dim after the engine is started? I have to turn the parking lights on to read the dash with it running.

Feb 3, 2003 | 01:25 PM

trupp

Instructor

Joined: Jan 2002

Posts: 221

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From: League city Texas

Re: 85 Dash Lights Dim (bubbaray)

Typically, when this happens the light sensor in the dash has gone out.

Feb 3, 2003 | 01:30 PM

bubbaray

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From: Sullivan Mo

Re: 85 Dash Lights Dim (trupp)

Where do I look and what does it look like?

Feb 3, 2003 | 09:10 PM

mr.beachcomber

Burning Brakes

Joined: Jan 2003

Posts: 755

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From: Roswell Georgia

Re: 85 Dash Lights Dim (bubbaray)

Quote:

Where do I look and what does it look like?

It's located above the speedometer display. When the ignition is turned on, the lights go to full brightness and then the optic sensor sets the lighting level. You override the sensor when you turn on the parking lights because the light switch is connected to a rheostat to change the dash lighting from dim to full brightness. According to Gordon Killebrew, if this sensor is bad, the entire dash cluster must be removed and sent to a service center. :(

You can go to http://www.corvettemagazine.com and search their archive section for Gorden Killebrew's article on repairing/testing 1984-1989 digitial dashes.

Good luck!

Apr 6, 2022 | 10:25 AM

Charles212

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Joined: Dec 2021

Posts: 97

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From: Atlanta GA

In my C4, someone has covered over the sensor with some kind of tape or something. My dash is dim as well. I tried to pull off the substance but it is stuck on tight. If I were to get it off would that light up the dash brighter?

C