1975 Corvette blinkers do not work
Thread Starter
Instructor
Joined: Aug 2009
Posts: 149
Likes: 1
1975 Corvette blinkers do not work
I have a 1975 Corvette and I get no blinkers at all. I swapped out the fuses and I now can hear the clicking noise (like it is blinking) but no lights come on. I do have back lights and brake lights but no signal lights. I have not checked to see if the bulbs are blown but I find it unlikely that every blinker light (both front and back) are blown. Anyone have a blinker troubleshooting guide to figure out where the problem lies?
Heel & Toe
Joined: Feb 2013
Posts: 19
Likes: 0
Your flasher is bad. In a 75 im pretty sure its located under your passenger side dash. Go to your right vent on dash and underneath the dash in that area youll find the flasher plugged into a connector. Its supposed to be in located in a metal clip but many times theyre broken, so people will tuck it under the dash higher to keep it from flopping around. Good luck
Le Mans Master
Joined: Jul 2000
Posts: 6,001
Likes: 113
From: Saginaw Michigan
I think that this scan comes right out of the Chevrolet Chassis Service Manual. It is in Microsoft Word foramat. (Sometime I hope to have sufficient time to convert a lot of my papers to pdf format.)
http://jimshea.corvettefaq.com/?p=935
Anyway, two of the trouble shooting segments indicate to replace the flasher.
A couple others indicate that you should unplug the turn signal harmonica connector from the vehicle wiring harness. Then take a new turn signal switch and just plug it into the harness and see if that fixes the problem. I know that most of you just don't have a spare switch laying around (as compared to a dealership service department.) The other issue is that a lot of suppliers will not allow you to break the packaging on electrical components and still be able to return the part for credit.
Maybe you can find a friend or Corvette Club member that has a spare switch for the test. (I am quite sure that most (if not all) GM turn signal switches in that same time frame could be used as a test switch even if it isn't a special Corvette T&T switch.)
http://jimshea.corvettefaq.com/?p=935
Anyway, two of the trouble shooting segments indicate to replace the flasher.
A couple others indicate that you should unplug the turn signal harmonica connector from the vehicle wiring harness. Then take a new turn signal switch and just plug it into the harness and see if that fixes the problem. I know that most of you just don't have a spare switch laying around (as compared to a dealership service department.) The other issue is that a lot of suppliers will not allow you to break the packaging on electrical components and still be able to return the part for credit.
Maybe you can find a friend or Corvette Club member that has a spare switch for the test. (I am quite sure that most (if not all) GM turn signal switches in that same time frame could be used as a test switch even if it isn't a special Corvette T&T switch.)
