Plug or switch.
Bright lights don't work
Thread Starter
Advanced
Joined: Oct 2007
Posts: 92
Likes: 2
From: Oakland Tn
Bright lights don't work
Got a 77 and the guy before me installed a new turn signal / dimmer switch. It worked fine up until tonight when I went to go to brights and total darkness, both lights. Click back to low beam and everything is fine. Is that something in the switch or a fuse that has gone bad?
Melting Slicks
Joined: Oct 2006
Posts: 2,417
Likes: 336
From: Texas
is the bright light indicator in the dash on, when you go to brights.
if it is then it may be a connector, C115, if it isnt on then its probably the dimmer switch. both headlights use same circuit breaker. of course the circuit breaker in the headlight switch may be tripping but i wouldnt think it would reset that fast when you go back to dims.
http://www.corvetteforum.net/c3/tune.../index11.shtml
if it is then it may be a connector, C115, if it isnt on then its probably the dimmer switch. both headlights use same circuit breaker. of course the circuit breaker in the headlight switch may be tripping but i wouldnt think it would reset that fast when you go back to dims.
http://www.corvetteforum.net/c3/tune.../index11.shtml
Last edited by speedreed8; Oct 31, 2007 at 10:27 PM.
Thread Starter
Advanced
Joined: Oct 2007
Posts: 92
Likes: 2
From: Oakland Tn
Bright lights
I haven't checked the headlighs themselves because I've never had 2 go out at the same time but it's certainly worth making that a part of the elimination process. thanks.
How much trouble is it to repair the dimmer / turn signal switch?
How much trouble is it to repair the dimmer / turn signal switch?
Drifting
Joined: Jan 2004
Posts: 1,991
Likes: 3
From: Piscataway NJ
The dimmer switch is at the left side base of the column. A three wire connector. Should be Lt. Green, Yellow, and Tan. The switch is operated by a rod that pushes down on the switch. The switch is attached to the column with two screws. The switch could be bad un likely or just or out of adjustment. It is adjusted by loosening the two screws. These high beam switches were pretty common on GM cars and trucks.So finding one if it is bad should not be a problem.
Thread Starter
Advanced
Joined: Oct 2007
Posts: 92
Likes: 2
From: Oakland Tn
Bright lights
Great info. Went out after reading and found that the problem was the rod. Apparently it was out of adjustment and wasn't making a good connection. Adjusted just a little and shazam.....bright lights. thanks
Heel & Toe
Joined: Apr 2007
Posts: 24
Likes: 0
From: Belton Texas
Wanting to bring this back to the top to see if my problem might be related.
I am having the opposite problem. Only my bright lights come on, not my dim lights. Could my issue be the rod adjustment as well?
Also I just bought this, Im assuming the first detent when pulling the light switch is dim, because the one after that is bright (full out). When I go to dim/first detent I get my gauge lights as well as my tail lights, just not the headlights, ill go check the fuses as well.
I am having the opposite problem. Only my bright lights come on, not my dim lights. Could my issue be the rod adjustment as well?
Also I just bought this, Im assuming the first detent when pulling the light switch is dim, because the one after that is bright (full out). When I go to dim/first detent I get my gauge lights as well as my tail lights, just not the headlights, ill go check the fuses as well.
Last edited by blackhawkss; Mar 7, 2008 at 10:00 PM.
Corvette Stories
The Best of Corvette for Corvette Enthusiasts
Corvette ZR1X Will Be Pacing the Indy 500, And Could Probably Race, Too!
Verdad Gallardo
Top 10 Corvettes Coming to Mecum Indy 2026!
Brett Foote
Top 10 C9 Corvette MUST-HAVES to Fix These C8 Generation Flaws!
Michael S. Palmer
10 Revolutionary 'Corvette Firsts' Most People Don't Know
Joe Kucinski
5 Reasons to Upgrade to an LS6-Powered Corvette; 5 Reasons to Stay LT2
Michael S. Palmer
2027 Corvette vs The World: Every C8 vs Its Closest Competitor
Joe Kucinski
10 Most Common Corvette Problems of the Last 20 Years!
Joe Kucinski
5 MOST and 5 LEAST Popular Corvette Model Years in History!
Joe Kucinski
2027 Corvette Buyer's Guide: Everything You Need to Know!
Joe Kucinski
Race Director
Joined: Apr 2007
Posts: 14,062
Likes: 602
From: Henderson Nv-Rohnert Park/Sonoma C o. ca/born in NY Rockaway Beach.
Im having the same problem on my 77... my brights are not working now...They were working when I got the car a few months ago....
I dont see the high beam igth in the dash, and I dont hear the click like before??
To adjust the switch how much of the colum has to come off ??
Is there any kind of diagram for this???
Sure would like to have my high beams back
I dont see the high beam igth in the dash, and I dont hear the click like before??
To adjust the switch how much of the colum has to come off ??
Is there any kind of diagram for this???
Sure would like to have my high beams back
The dimmer switch is at the left side base of the column. A three wire connector. Should be Lt. Green, Yellow, and Tan. The switch is operated by a rod that pushes down on the switch. The switch is attached to the column with two screws. The switch could be bad un likely or just or out of adjustment. It is adjusted by loosening the two screws. These high beam switches were pretty common on GM cars and trucks.So finding one if it is bad should not be a problem.
Race Director
Joined: Apr 2007
Posts: 14,062
Likes: 602
From: Henderson Nv-Rohnert Park/Sonoma C o. ca/born in NY Rockaway Beach.
TTT would like to know how to adj the switch?? Anyhelp
Im having the same problem on my 77... my brights are not working now...They were working when I got the car a few months ago....
I dont see the high beam igth in the dash, and I dont hear the click like before??
To adjust the switch how much of the colum has to come off ??
Is there any kind of diagram for this???
Sure would like to have my high beams back
I dont see the high beam igth in the dash, and I dont hear the click like before??
To adjust the switch how much of the colum has to come off ??
Is there any kind of diagram for this???
Sure would like to have my high beams back
Le Mans Master
Joined: Dec 2007
Posts: 6,422
Likes: 591
From: McHenry Illinois
Wanting to bring this back to the top to see if my problem might be related.
I am having the opposite problem. Only my bright lights come on, not my dim lights. Could my issue be the rod adjustment as well?
Also I just bought this, Im assuming the first detent when pulling the light switch is dim, because the one after that is bright (full out). When I go to dim/first detent I get my gauge lights as well as my tail lights, just not the headlights, ill go check the fuses as well.
I am having the opposite problem. Only my bright lights come on, not my dim lights. Could my issue be the rod adjustment as well?
Also I just bought this, Im assuming the first detent when pulling the light switch is dim, because the one after that is bright (full out). When I go to dim/first detent I get my gauge lights as well as my tail lights, just not the headlights, ill go check the fuses as well.
When puling out the headlight switch, the first detent is tail lights, park lights and dash lights. Pull it out all the way for headlights. The signal lever should be used to dim the headlights. The actual dimmer switch is on the lower left side of the column. I believe there are slotted holes. Loosen the screws and slide the switch up or down the column for adjustment. I think 77 has it on the column, my 75 has the dimmer on the floor.
