C3 Tech/Performance V8 Technical Info, Internal Engine, External Engine, Basic Tech and Maintenance for the C3 Corvette
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Old Nov 1, 2025 | 06:45 AM
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this one has me totally lost... all fuses good,,, both flashers are for led's.. will not blink with turn signal or flasher.. runnin' lights fine.. brake lights fine.. can blink "manually".. doesn't effect runnin' lights... 4 leds (all 4 red with brake lights) in rear.. i still have incandescent in front parkin' lights... any ideas???.. maybe in steerin' column turn sig. assy.??.. nothin' else left??

jus discovered this thing has 3 flashers???.. one under tha console also???... this is one ta take note of boys..tha one under tha console was a factory flasher.. tha one under tha passenger side dash was led, tha one on tha fuse panel was led.. i installed both of those when installed tha leds in tha rear...swapped tha led from tha passenger side dash with tha factory under tha console and walleye!.. all works fine.. guess i need ta chang tha one factory out ta led flasher but scared ta change anything now....................

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Old Nov 1, 2025 | 07:21 AM
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Originally Posted by tlwjkw
this one has me totally lost... all fuses good,,, both flashers are for led's.. will not blink with turn signal or flasher.. runnin' lights fine.. brake lights fine.. can blink "manually".. doesn't effect runnin' lights... 4 leds (all 4 red with brake lights) in rear.. i still have incandescent in front parkin' lights... any ideas???.. maybe in steerin' column turn sig. assy.??.. nothin' else left??
Couple questions,
What year car are you working on?
What electronic flasher relay are you using?
I have let's front and rear and only needed to change flasher relay on the turn signals.
I also had to swap the wires at the turn flasher relay connector. Most electronic flasher relays are polarity sensitive.
The flasher relay under the center console is for the alarm on most years.
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Old Nov 1, 2025 | 07:26 AM
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Originally Posted by bmotojoe
Couple questions,
What year car are you working on?
What electronic flasher relay are you using?
I have let's front and rear and only needed to change flasher relay on the turn signals.
I also had to swap the wires at the turn flasher relay connector. Most electronic flasher relays are polarity sensitive.
The flasher relay under the center console is for the alarm on most years.
its a '78.. read my edit.. decided ta chang ALL 3 ta led flashers.. will eventually chage all lamps ta led's... what ya think?
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Old Nov 1, 2025 | 07:36 AM
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and all this time i thought there were only 2 flasher relays.....
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Old Nov 1, 2025 | 07:41 AM
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I only needed to change the turn flasher relay to an electronic when Front & Rear LED bulbs were installed ...
When you apply brakes do your turn signals still work correctly?
If so, then I think you got it...
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Old Nov 1, 2025 | 07:45 AM
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yes.. its all workin' as it should.. still can't believe there are 3 though... i haven't found anywhere it mentions that there's 3 on this car???
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Old Nov 1, 2025 | 07:45 AM
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There is a 4 way flasher relay in fuse panel and the turn signal flasher relay on right side under dash.
The relay you found under center console pulses the factory alarm horn. has noting to do with the turn or 4 way flasher circuit(s)
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Old Nov 1, 2025 | 07:48 AM
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Originally Posted by bmotojoe
There is a 4 way flasher relay in fuse panel and the turn signal flasher relay on right side under dash.
The relay you found under center console pulses the factory alarm horn. has noting to do with the turn or 4 way flasher circuit(s)
sorry ta say your wrong about it not effecting tha lighting.. this one does... for whatever reason!.. tha part number is same as lighting if that makes any difference???
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Old Nov 1, 2025 | 07:52 AM
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Ok, show me on the 78 drawing where the factory alarm drawing is connected in anyway to the 4 way or turn circuits?
I have the 78 Electrical Troubleshooting Manual drawing opened to page 30 showing the alarm circuit so I can follow...
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Old Nov 1, 2025 | 08:01 AM
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Now, "IF" the alarm pulse relay has a lower resistance rating for example swapping a 552 to a 224 to turn signals it's possible (not sure) it might work.?
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Old Nov 1, 2025 | 08:21 AM
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its workin' right right now.. how? don't know and really don'y care.. all 3 relays are part number for a flasher.. same number.. all i know its workin; and i'm happy....................
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