C3 electrical
Thread Starter
Heel & Toe
Joined: May 2024
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C3 electrical
I have a 1982 corvette, and the front right turn signal indicator wont flash. Its the one above the white parking light, and it turns on when i have the lights on. It just wont flash with the signal. Any ideas what could be wrong?
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From: Summerville SC
Have you checked to see if there is current to the bulb? If there is then maybe its the bulb. Switch it with the one on the other side, if it works, then it's not the bulb. Maybe it's a ground that isn't making a good connection. WHen you take the bulb out look inside and see if there is any corrosion on the contacts. This is a good exercise for you to diagnose what should be an easy fix, you just have to be methodical and go down a list of possibilities one at a time. It would also be a good reason to get a shop manual or a wiring diagram for your car. Lots of these little gremlins will be popping up. Tell us what you find. And welcome to the club
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82's are an entirely different animal than other C3's.
does it have a duel filament bulb? Is it wired like earlier C3's.
I just don't know. It's an 82.
does it have a duel filament bulb? Is it wired like earlier C3's.
I just don't know. It's an 82.
Thread Starter
Heel & Toe
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Have you checked to see if there is current to the bulb? If there is then maybe its the bulb. Switch it with the one on the other side, if it works, then it's not the bulb. Maybe it's a ground that isn't making a good connection. WHen you take the bulb out look inside and see if there is any corrosion on the contacts. This is a good exercise for you to diagnose what should be an easy fix, you just have to be methodical and go down a list of possibilities one at a time. It would also be a good reason to get a shop manual or a wiring diagram for your car. Lots of these little gremlins will be popping up. Tell us what you find. And welcome to the club
i have checked fuses, connections and contacts, like i said; it does recieve power when the park lights are on however it just doesnt flash with the turn signal.
Is my vette stock?? HAHA
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is the bulb installed correctly. it may be installed 180* off
Is my vette stock?? HAHA
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If its in correctly use a voltage tester to see of the voltage is flashing...you can test it against the results of a good socket for reference
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From: Aubrey TX
Did you just install the LED's? If so, your going to need to update the flasher to an electronic one. If you already updated the flasher to an electronic one then the flasher is wired backwards and you will need to make a pig tail to connect it correctly to cross the wires into the socket. Electronic flashers are polarized where the OEM bi-metal coil flasher is not. My money is on the flasher wired backwards which is why the bulbs light but dont blink
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From: Virginia
The front side marker lights add an additional complication with LEDs, but here is what I learned while converting all of my bulbs to LEDs. As @ZIOGEO pointed out, you need a specific LED-capable flasher at a minimum. 100% LEDs are possible, though.
https://www.corvetteforum.com/forums...s-learned.html
https://www.corvetteforum.com/forums...s-learned.html
Is my vette stock?? HAHA
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he does not have LED bulbs in his turn signals......
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From: Virginia
Yes he does, assuming the "parking lights" are the front facing lights bellow the headlights. In an 80-82, they are 1157s. I use white/amber switchbacks (which look green in the video), and not all 1157 LEDs even work. Cheap ones do not, so that could be the issue, but I'd start with a grounded, LED capable flasher.
Is my vette stock?? HAHA
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who told you that he did? Either he has a different set up than you think , he is wrong on the year, or he doesnt know that his turn signals are parking lights too.....
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From: Virginia
We can argue semantics if you want, but the OP needs an LED-capable flasher unit (two, actually, likely at least one with a swapped base). And he may need better 1157 bulbs in the "parking lights".
It's all in the link I posted!
Last edited by Bikespace; May 31, 2024 at 03:35 PM.
Is my vette stock?? HAHA
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Maybe you should post a wiring schematic for him so he can see what you are talking about
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From: Virginia
https://www.corvetteforum.com/forums...s-learned.html
@Richard454 also posted some wiring diagrams in this thread.
https://www.corvetteforum.com/forums...rn-signal.html
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Heel & Toe
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Sorry to cause any confusion, in the video i just uploaded the first shown bulb is the one with the issues, as you can see the park lights come on with the signals, however the yellow flasher on the right side facing forward just doesnt flash. Also, i apoligise for the misunderstanding i was under the impression that the orange lights directly under the headlights were not park lights
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From: Virginia
I watched the video three times, but still don't know what is going on. I never saw the lights under the headlights, so I can't say if they are working or not.
The cornering lights (the WHITE lights on the sides) only come on when using the turn signals WITH the parking lights (or headlights) turned ON.
You might just be missing a ground, or have a bulb partially installed somewhere, or who knows.
What happens if you switch back to all halogen lights? Do you have LED flashers installed? Perhaps the side with the hyperflash is the only one with an LED bulb.
Wiring diagrams are here, with GM's terms, so we can all be on the same page. The bulbs under the headlights are both "parking lights" and "directional lights", per GM's naming convention, though they are the same 1157 bulb, with two circuits. Are you sure that's what's installed? Sometimes 1156 (single circuit bulbs) end up installed instead, and sometimes the bayonet mount needs to be cleaned (mine certainly did). You'll see a ground in the diagram on both front corners of the car. If that's missing, other screwy things can happen.
https://wordpress.keystonestatecorve...m/?page_id=118
The cornering lights (the WHITE lights on the sides) only come on when using the turn signals WITH the parking lights (or headlights) turned ON.
You might just be missing a ground, or have a bulb partially installed somewhere, or who knows.
What happens if you switch back to all halogen lights? Do you have LED flashers installed? Perhaps the side with the hyperflash is the only one with an LED bulb.
Wiring diagrams are here, with GM's terms, so we can all be on the same page. The bulbs under the headlights are both "parking lights" and "directional lights", per GM's naming convention, though they are the same 1157 bulb, with two circuits. Are you sure that's what's installed? Sometimes 1156 (single circuit bulbs) end up installed instead, and sometimes the bayonet mount needs to be cleaned (mine certainly did). You'll see a ground in the diagram on both front corners of the car. If that's missing, other screwy things can happen.
https://wordpress.keystonestatecorve...m/?page_id=118
Thread Starter
Heel & Toe
Joined: May 2024
Posts: 15
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I watched the video three times, but still don't know what is going on. I never saw the lights under the headlights, so I can't say if they are working or not.
The cornering lights (the WHITE lights on the sides) only come on when using the turn signals WITH the parking lights (or headlights) turned ON.
You might just be missing a ground, or have a bulb partially installed somewhere, or who knows.
What happens if you switch back to all halogen lights? Do you have LED flashers installed? Perhaps the side with the hyperflash is the only one with an LED bulb.
Wiring diagrams are here, with GM's terms, so we can all be on the same page. The bulbs under the headlights are both "parking lights" and "directional lights", per GM's naming convention, though they are the same 1157 bulb, with two circuits. Are you sure that's what's installed? Sometimes 1156 (single circuit bulbs) end up installed instead, and sometimes the bayonet mount needs to be cleaned (mine certainly did). You'll see a ground in the diagram on both front corners of the car. If that's missing, other screwy things can happen.
https://wordpress.keystonestatecorve...m/?page_id=118
The cornering lights (the WHITE lights on the sides) only come on when using the turn signals WITH the parking lights (or headlights) turned ON.
You might just be missing a ground, or have a bulb partially installed somewhere, or who knows.
What happens if you switch back to all halogen lights? Do you have LED flashers installed? Perhaps the side with the hyperflash is the only one with an LED bulb.
Wiring diagrams are here, with GM's terms, so we can all be on the same page. The bulbs under the headlights are both "parking lights" and "directional lights", per GM's naming convention, though they are the same 1157 bulb, with two circuits. Are you sure that's what's installed? Sometimes 1156 (single circuit bulbs) end up installed instead, and sometimes the bayonet mount needs to be cleaned (mine certainly did). You'll see a ground in the diagram on both front corners of the car. If that's missing, other screwy things can happen.
https://wordpress.keystonestatecorve...m/?page_id=118
thank you for the clarification, the bulbs i am talking about are the signals above the CORNERING lights, as shown in the video, i apologize for the confusion
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From: Virginia
Finally, which bulbs have been replaced with LEDs? If you have more than zero LEDs among your turn signal bulbs, you will need two LED flashers.