Turn Signal 1990 C4 Automatic Base Model
My left turn signal stopped working. the right turn signal works fine, no problem. I checked it out and noticed that when the car is running, The left turn signal light in the dash is on constant, no blinking. The side marker, left front side is on constant. The left rear turn signal is on constant, without me turning the signal on.
Can anyone tell me what their fix was if they had this same issue. Thanks
Last edited by altownsend; Mar 31, 2024 at 02:13 AM.
My left turn signal stopped working. the right turn signal works fine, no problem. I checked it out and noticed that when the car is running, The left turn signal light in the dash is on constant, no blinking. The side marker, left front side is on constant. The left rear turn signal is on constant, without me turning the signal on.
Can anyone tell me what their fix was if they had this same issue. Thanks
Question: Where exactly is the turn signal flasher on the 1990 C4 Corvette?
Some have posted, with video, that the turn signal flasher is in the dash behind the climate control. Others have stated that the turn signal flasher is under the kick panel on the passenger side of the car. Still, others show the signal light flasher to be on the driver side under the kick panel.
So, for the 1990 C4 Corvette, where is the signal light flasher? Thanks, folks





Question: Where exactly is the turn signal flasher on the 1990 C4 Corvette?
Some have posted, with video, that the turn signal flasher is in the dash behind the climate control. Others have stated that the turn signal flasher is under the kick panel on the passenger side of the car. Still, others show the signal light flasher to be on the driver side under the kick panel.
So, for the 1990 C4 Corvette, where is the signal light flasher? Thanks, folks
I tried to upload a screenshot from my '90 factory service manual illustrating this but the upload freezes at 90% upload for some reason.
Not messing around with that Mickey Mousery if it's not gonna work right, so you'll just have to take my word for it.
I've relpaced that flasher on my 90.
It's on the driver side under the panel.
So far as the slow blinker on one particular side goes, there are a few different possibilities as to why.
Here's an older thread regarding that specific problem...
https://www.corvetteforum.com/forums...gnal-slow.html
Last edited by Natty C; Jan 8, 2026 at 02:53 PM.
My turn signal defect was the flasher. I had a spare, installed it, and the turn signals are working again.
Solution, replace the turn signal flasher.





