Turn signals broken
Thread Starter
Cruising
Joined: Mar 2018
Posts: 13
Likes: 0
Turn signals broken
so I’ve been tinkering with my turn signals with no luck for months now . I’ve replaced all the fuses in the car , all the turn signal / brake light bulbs and the turn signal switch and even the flashers . So what happens is when ever I turn the switch to one side(left for example ) , the left front signals work as they are supposed to but the tail lights both flash . Like hazards but just on the rear . And then when I press the brake down they stop flashing all together . The brake lights work as they are supposed to but the turn signals drive me crazy . I’ve tried everything I can , even grounding out the tail lights didn’t work . What do I do ? I have a 1974 corvette
Racer
Joined: Sep 2013
Posts: 331
Likes: 29
From: Moyock NC
so I’ve been tinkering with my turn signals with no luck for months now . I’ve replaced all the fuses in the car , all the turn signal / brake light bulbs and the turn signal switch and even the flashers . So what happens is when ever I turn the switch to one side(left for example ) , the left front signals work as they are supposed to but the tail lights both flash . Like hazards but just on the rear . And then when I press the brake down they stop flashing all together . The brake lights work as they are supposed to but the turn signals drive me crazy . I’ve tried everything I can , even grounding out the tail lights didn’t work . What do I do ? I have a 1974 corvette
Racer
Joined: May 2018
Posts: 297
Likes: 43
switch the tail light and front blinker bulb if the issue moves from rear to front then its the bulbs, otherwise its probably the column switch cross contacting as you have looked at the other possibilities.
iirc correctly the same bulb is used front and back, but im fuzzy on that.
iirc correctly the same bulb is used front and back, but im fuzzy on that.
Last edited by sambrand; Sep 11, 2018 at 10:52 PM.
Racer
Joined: Sep 2013
Posts: 331
Likes: 29
From: Moyock NC
switch the tail light and front blinker bulb if the issue moves from rear to front then its the bulbs, otherwise its probably the column switch cross contacting as you have looked at the other possibilities.
iirc correctly the same bulb is used front and back, but im fuzzy on that.
iirc correctly the same bulb is used front and back, but im fuzzy on that.
Last edited by 80-Vette; Sep 11, 2018 at 11:28 PM.
Le Mans Master
Joined: Aug 2006
Posts: 7,426
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From: mount holly NC
2025 c3 ('74-'82) of the Year Finalist - Unmodified
2019 C3 of Year Finalist (appearance mods)
He said he replaced the turn signal switch I assumed that meant the one in the column. Plus since he said the front signals work I think that would eliminate the switch as the issue. Maybe Willcox will see this thread and have some troubleshooting steps to pin point where the problem is. My bet is the problem is actually with the hazard switch. Does anyone know if the turn signal wiring goes through the hazard switch? Is there a way to bypass the hazard switch? If the turn signal wiiring does not go through the switch maybe it could simply be disconnected to troubleshoot a faulty hazard switch.
You can eliminate the 4-ways by removing the STOP HAZ fuse.
H2,
How did you test the rear lights for a good ground?
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