C4 General Discussion General C4 Corvette Discussion not covered in Tech

Electrical Problem

Thread Tools
 
Search this Thread
 
Old May 11, 2020 | 08:01 PM
  #1  
Rileyrocks's Avatar
Rileyrocks
Thread Starter
6th Gear
 
Joined: May 2020
Posts: 6
Likes: 0
Default Electrical Problem

Hey all , new to the forum and new to owning a C4 Corvette (1993). I am having a problem with the RH CSTY fuse blowing, I've tried unplugging the cigarette lighter as there was some corrosion inside but no luck. I don't know what else this fuse powers but I think it's causing the Sys light to flash on the dash. Any help is greatly appreciated thank you.
Reply
Old May 11, 2020 | 08:57 PM
  #2  
Waterloo Wonder's Avatar
Waterloo Wonder
Instructor
 
Joined: Mar 2019
Posts: 142
Likes: 36
From: Southern New Hampshire
Default 5 amp in position 36

Originally Posted by Rileyrocks
Hey all , new to the forum and new to owning a C4 Corvette (1993). I am having a problem with the RH CSTY fuse blowing, I've tried unplugging the cigarette lighter as there was some corrosion inside but no luck. I don't know what else this fuse powers but I think it's causing the Sys light to flash on the dash. Any help is greatly appreciated thank you.
RH CSTY controls: Dome Lamp relay, Courtesy Footwell lamps, Door Courtesy Lamps, Glove Compartment Lamps, Lighted Rear View Mirror.

Here is a link to a 1993 Owners Manual - Fuses are on Page 305 http://www.keystonestatecorvetteclub...93corvette.pdf

I doubt it is the fuse causing this issue. It may be a charging issue. Check the battery connections (clean and tighten)
There are a good number of threads here in the forum dealing with the SYS light. Sometimes a google search (1993 Corvette Sys Light) gives you a more targeted list of posts instead of searching the forum directly.

Hope this helps.

Last edited by Waterloo Wonder; May 11, 2020 at 09:01 PM.
Reply
Old May 11, 2020 | 09:11 PM
  #3  
Rileyrocks's Avatar
Rileyrocks
Thread Starter
6th Gear
 
Joined: May 2020
Posts: 6
Likes: 0
Default

Originally Posted by Waterloo Wonder
RH CSTY controls: Dome Lamp relay, Courtesy Footwell lamps, Door Courtesy Lamps, Glove Compartment Lamps, Lighted Rear View Mirror.

Here is a link to a 1993 Owners Manual - Fuses are on Page 305 http://www.keystonestatecorvetteclub...93corvette.pdf

I doubt it is the fuse causing this issue. It may be a charging issue. Check the battery connections (clean and tighten)
There are a good number of threads here in the forum dealing with the SYS light. Sometimes a google search (1993 Corvette Sys Light) gives you a more targeted list of posts instead of searching the forum directly.

Hope this helps.
Ahh thank you for the list of what the RH CSTY fuse powers cause now I'm almost sure it's the Dome lamp relay causing the fuse to blow the dome lights stay on all the time. Thank you so much.

Reply
Old May 11, 2020 | 10:09 PM
  #4  
belairbrian's Avatar
belairbrian
Melting Slicks
Liked
Loved
Top Answer: 1
Top Answer: 3
 
Joined: Oct 2016
Posts: 2,024
Likes: 363
From: Central Alabama
Default

My 92 had a Sys light when I bought it. Figured it was the problem caused when after market radios were installed. Turned out that it was the battery terminals. Haven;'t seen it in two years once I cleaned and tightened them.
Reply
Old May 12, 2020 | 06:20 AM
  #5  
corvette95's Avatar
corvette95
Melting Slicks
25 Year Member
Liked
Loved
Community Favorite
 
Joined: Jul 1999
Posts: 3,214
Likes: 101
From: Decatur, Alabama
Default

a lot of the lamps burn too hot or shielding wasn't installed when taken out and put back in. Around most lighting, footwells, doors, halo, you will find burns in the housing, maybe one is shorted- although you mentioned one not cutting off, that is where I would go first. I am looking for install LED bulbs where I can on my current project for the lower temperatures
Reply
Old May 12, 2020 | 07:56 AM
  #6  
Paul Workman's Avatar
Paul Workman
Le Mans Master
15 Year Member
 
Joined: Oct 2004
Posts: 6,314
Likes: 508
From: South-central Missouri
Default

Originally Posted by corvette95
a lot of the lamps burn too hot or shielding wasn't installed when taken out and put back in. Around most lighting, footwells, doors, halo, you will find burns in the housing, maybe one is shorted- although you mentioned one not cutting off, that is where I would go first. I am looking for install LED bulbs where I can on my current project for the lower temperatures
Tho NOT to hijack the thread, but I agree that LEDs can solve a lot of the heating issues the incandescent bulbs have. However, LEDs operate on very LOW current draw which often causes problems where that load is also part of relay circuits (especially). But, for many courtesy applications, LEDs are a terrific upgrade for the stock incandescent bulbs.

This is one source for LEDs I found very helpful: superbrightleds.com
Reply
Old May 12, 2020 | 08:50 AM
  #7  
Rileyrocks's Avatar
Rileyrocks
Thread Starter
6th Gear
 
Joined: May 2020
Posts: 6
Likes: 0
Default

Hey guys thanks for the responses, seems to be a misunderstanding. The RH CSTY fuse keeps blowing due to a short in the connection somewhere . I think it's the wire going to the dome light relay cause the fuse blows and the light stay on all the time draining the battery . Thanks again for all the help
Reply

Get notified of new replies

To Electrical Problem





All times are GMT -4. The time now is 01:08 PM.

story-0
Top 10 C9 Corvette MUST-HAVES to Fix These C8 Generation Flaws!

Slideshow: the top 10 things Corvette owners want in the C9 Corvette

By Michael S. Palmer | 2026-04-30 12:41:15


VIEW MORE
story-1
10 Revolutionary 'Corvette Firsts' Most People Don't Know

Slideshow: 10 Important Corvette 'firsts' that every fan should know.

By Joe Kucinski | 2026-04-29 17:02:16


VIEW MORE
story-2
5 Reasons to Upgrade to an LS6-Powered Corvette; 5 Reasons to Stay LT2

Slideshow: Should you buy a 2020-2026 Corvette or wait for 2027?

By Michael S. Palmer | 2026-04-22 10:08:58


VIEW MORE
story-3
2027 Corvette vs The World: Every C8 vs Its Closest Competitor

Slideshow: 2027 Corvette lineup vs the world.

By Joe Kucinski | 2026-04-24 16:12:42


VIEW MORE
story-4
10 Most Common Corvette Problems of the Last 20 Years!

Slideshow: 10 major Corvette problems from the last 20 years.

By Joe Kucinski | 2026-04-14 16:37:05


VIEW MORE
story-5
5 MOST and 5 LEAST Popular Corvette Model Years in History!

Slideshow: 5 most and least popular Corvette model years.

By Joe Kucinski | 2026-04-08 13:25:01


VIEW MORE
story-6
2027 Corvette Buyer's Guide: Everything You Need to Know!

Slideshow: 2027 Corvette buyer's guide

By Joe Kucinski | 2026-04-17 16:41:08


VIEW MORE
story-7
10 Things C8 Corvette Owners Hate (But Won't Tell You)

Slideshow: 10 things C8 Corvette owners hate, but won't tell you.

By Joe Kucinski | 2026-04-01 18:36:07


VIEW MORE
story-8
10 Best Corvettes Coming to Barrett-Jackson Palm Beach 2026!

Slideshow: Should you add one of these incredible Corvettes to your garage?

By Brett Foote | 2026-04-01 18:14:05


VIEW MORE
story-9
Every Corvette Grand Sport Explained! (C2, C4, C6, C7, & C8)

Slideshow: Every Corvette Grand Sport explained

By Joe Kucinski | 2026-03-26 07:13:44


VIEW MORE