C3 Tech/Performance V8 Technical Info, Internal Engine, External Engine, Basic Tech and Maintenance for the C3 Corvette
Sponsored by:
Sponsored by:

Electrical Question- Interior Lights

Thread Tools
 
Search this Thread
 
Old Aug 15, 2008 | 09:20 PM
  #1  
Mr.Gearhead's Avatar
Mr.Gearhead
Thread Starter
Burning Brakes
10 Year Member
 
Joined: Jun 2000
Posts: 892
Likes: 0
From: GA
Default Electrical Question- Interior Lights

It appears I have a bad head light switch. Read the archives and my issues seems to match:

Headlights will turn on, but will not open except from override
Turn signals work until I pull the headlight **** out... then just on.. no flashing

would you guys agree... headlight switch?

Now... comes the real question... When I apply the brakes... the lights for the tach and speedo come on too... and one other bulb from the center console area. The rear brake lights come on as well as they should. I don't have the center console or RH dash in place yet... so I was hoping to get this fixed so I don't have to "go back in" later. Any suggestions where to start my troubleshooting?

edit*** forgot to add... when I pull the headlight **** out... the interior lights do work. I can dim and also turn on courtesy lights too.

Last edited by Mr.Gearhead; Aug 15, 2008 at 09:22 PM.
Reply
Old Aug 15, 2008 | 10:10 PM
  #2  
Mr.Gearhead's Avatar
Mr.Gearhead
Thread Starter
Burning Brakes
10 Year Member
 
Joined: Jun 2000
Posts: 892
Likes: 0
From: GA
Default

More good news... I just noticed while I was sitting in the Vette trying to think about the brake/interior light issue... when I hit the brake... the front turn signals and side markers are on too... not real bright ... but they do go on... hmmmmm
Reply
Old Aug 16, 2008 | 03:02 PM
  #3  
Mr.Gearhead's Avatar
Mr.Gearhead
Thread Starter
Burning Brakes
10 Year Member
 
Joined: Jun 2000
Posts: 892
Likes: 0
From: GA
Default

after reading a lot more posts... I swapped the vacuum lines on the headlight switch... IT WORKED. The headlights now operate from the switch. Good stuff.

Still have original issue with the brake light switch... hits the brake and the dash lights come on.. as well as turn signals in the front... I tried everything that I know.. which isn't much...

anyone?
Reply
Old Aug 17, 2008 | 02:42 AM
  #4  
RunningMan373's Avatar
RunningMan373
Melting Slicks
 
Joined: May 2007
Posts: 3,246
Likes: 4
From: Bay Area CA
Default

Check the ground on your rear tail lights. WD40 and work your turn signal switch.
Reply
Old Aug 17, 2008 | 08:03 AM
  #5  
...Roger...'s Avatar
...Roger...
Race Director
 
Joined: May 2006
Posts: 16,528
Likes: 53
From: Dayton, Ohio
Default

Originally Posted by Mr.Gearhead

hit the brake and the dash lights come on.. as well as turn signals in the front..
When you say "dash lights come on"....you mean turn signal "indicators" in the dash... correct?
Reply
Old Aug 17, 2008 | 10:58 AM
  #6  
Mr.Gearhead's Avatar
Mr.Gearhead
Thread Starter
Burning Brakes
10 Year Member
 
Joined: Jun 2000
Posts: 892
Likes: 0
From: GA
Default

Originally Posted by DWncchs
When you say "dash lights come on"....you mean turn signal "indicators" in the dash... correct?
The gray wired bulbs in the speedo and tach only... not center console area. Also the side marker and turn signal lights in the front of the car... at the front grill... all the lights that shouldn't come on when I hit the brake are dim... except for the rear brake lights... they look bright as they should. Checking all my grounds as suggested...


edit*** forgot to add. When I put the right turn signal on (up on the stalk) the flasher works and right signal lights work when head lights are on. However, when I put left signal on (stalk down) and the headlights are on... no blinking... signal just stays on... If I turn the headlight switch off... the left signal works...????????

Last edited by Mr.Gearhead; Aug 17, 2008 at 11:01 AM.
Reply
Old Aug 17, 2008 | 12:33 PM
  #7  
...Roger...'s Avatar
...Roger...
Race Director
 
Joined: May 2006
Posts: 16,528
Likes: 53
From: Dayton, Ohio
Default

Thats odd your getting in to another circuit.
Definitely start with your grounds.I have several 15' pieces of wire with clips on each end that I use as temporary grounds using the neg. terminal of the battery.In a case like yours I clip one end on neg. term. of battery and start touching different areas with the other end.By putting a sharp probe in the aligator clip I can touch the side of a bulb and suppley it with a good ground....if it lights up better then you know it was lacking a ground.
Reply
Old Aug 17, 2008 | 09:14 PM
  #8  
BSiegPaint's Avatar
BSiegPaint
Safety Car
20 Year Member
 
Joined: Apr 2002
Posts: 4,653
Likes: 6
From: North Royalton, OH
St. Jude Donor '06-'07
Default

Maybe replace the headlight switch and see what happens... When I look at a schematic, the brake lights are wired to the switch, and connect right next to the tab that goes straight to the fuse block for power - and this wire seems to share the same fuse as the power wire for the gauge lights... so it goes brown wire from the lights to the switch, which connects next to the green wire that goes to the fuse block, which shares the same fuse as the grey wires that go to the light bulbs. Maybe something inside the headlight switch is cracked and you are connecting different circuits through this faulty switch?
Reply
Corvette Stories

The Best of Corvette for Corvette Enthusiasts

story-0

Top 10 DOs and DON'Ts for Protecting Your Convertible Top!

 Michael S. Palmer
story-1

Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!

 Joe Kucinski
story-2

150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter

 Joe Kucinski
story-3

8 Coolest Corvette Pace Cars (and Replicas) of All Time

 Verdad Gallardo
story-4

Top 10 Corvette Engines RANKED by Peak Torque (70+ Years of Muscle!)

 Joe Kucinski
story-5

Corvette ZR1X Will Be Pacing the Indy 500, And Could Probably Race, Too!

 Verdad Gallardo
story-6

Top 10 Corvettes Coming to Mecum Indy 2026!

 Brett Foote
story-7

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

 Michael S. Palmer
story-8

10 Revolutionary 'Corvette Firsts' Most People Don't Know

 Joe Kucinski
story-9

5 Reasons to Upgrade to an LS6-Powered Corvette; 5 Reasons to Stay LT2

 Michael S. Palmer
Old Aug 17, 2008 | 09:36 PM
  #9  
'75's Avatar
'75
Le Mans Master
15 Year Member
Liked
Loved
Community Favorite
 
Joined: Dec 2007
Posts: 6,422
Likes: 591
From: McHenry Illinois
Default

Make sure your left and center dash are grounded good.
Reply

Get notified of new replies

To Electrical Question- Interior Lights





All times are GMT -4. The time now is 01:34 PM.

story-0
Top 10 DOs and DON'Ts for Protecting Your Convertible Top!

Slideshow: How to Protect A Convertible Top: 10 DOs & DON'Ts

By Michael S. Palmer | 2026-04-03 00:00:00


VIEW MORE
story-1
Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!

Slideshow: The 10 most explosive Corvettes ever built based on power-to-weight ratio.

By Joe Kucinski | 2026-05-20 07:23:03


VIEW MORE
story-2
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter

Slideshow: From C1 to C8 we compare every Corvette generation by the numbers.

By Joe Kucinski | 2026-05-12 16:54:12


VIEW MORE
story-3
8 Coolest Corvette Pace Cars (and Replicas) of All Time

Slideshow: Some Corvette pace cars became collectible legends, while others perfectly captured the look and attitude of their era.

By Verdad Gallardo | 2026-05-11 09:50:51


VIEW MORE
story-4
Top 10 Corvette Engines RANKED by Peak Torque (70+ Years of Muscle!)

Slideshow: Ranking the top 10 Corvette engines by torque output.

By Joe Kucinski | 2026-05-05 11:58:09


VIEW MORE
story-5
Corvette ZR1X Will Be Pacing the Indy 500, And Could Probably Race, Too!

Slideshow: A Corvette pace car nearly matching IndyCar speeds sounds exaggerated, until you look at the numbers.

By Verdad Gallardo | 2026-05-04 20:03:36


VIEW MORE
story-6
Top 10 Corvettes Coming to Mecum Indy 2026!

Among a rather large group of them.

By Brett Foote | 2026-05-04 13:56:44


VIEW MORE
story-7
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-8
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-9
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