Turn signal problems....
Thread Starter
Racer
Joined: Jan 2011
Posts: 393
Likes: 1
Turn signal problems....
I am in my 3rd day of test driving a 2000 coupe....car is clean as new and a blast to drive....but issues seem to keep popping up....this evening the turn signals quit working intermittenlly....I can move the stalk and the signal may work, not work, come on after a few seconds and quit working after a few seconds...
I did a search but could find nothing....is this a common problem with the C5 or unusual?...
I did a search but could find nothing....is this a common problem with the C5 or unusual?...
Le Mans Master
Joined: Mar 2002
Posts: 7,698
Likes: 2
From: MidLifeinIL just doesn't have the same ring to it
St. Jude Donor '26
Happens to mine, too (2001). I did some checking on the forum a few weeks back, and the consensus is that this is due to the turn signals being routed through the hazard flasher. The hazard flasher eventually goes bad (from lack of regular use), but I hear it's fairly difficult to replace. Most seem to buy a generic flasher module and wire the turn signals separately, as that's much simpler than replacing the hazard flasher - do a search in this area and there are a few threads with pics.
Le Mans Master
Joined: Oct 2007
Posts: 6,868
Likes: 770
From: Kelso Washington
St. Jude Donor '09, '13, '15
Yep, it is most likely the flasher unit high in the dash where the hazard switch is. ....it IS the hazard switch.
Two fixes:
A bypass unit that I hear is easy(ish) to install.
A new unit which really isn't that hard using the "through the radio hole" technique.
I did the latter, didn't take long and I learned a lot about my interior. But I also ended up re-routing the wire harness down into the driver-side footwell and hiding it under the plastic tunnel panel. That way, if it goes out again, it is just a snap off, snap on....done. I left the old unit there just to hold the button and make it look right.
There are plenty of fixit threads here to do either of these.
Two fixes:
A bypass unit that I hear is easy(ish) to install.
A new unit which really isn't that hard using the "through the radio hole" technique.
I did the latter, didn't take long and I learned a lot about my interior. But I also ended up re-routing the wire harness down into the driver-side footwell and hiding it under the plastic tunnel panel. That way, if it goes out again, it is just a snap off, snap on....done. I left the old unit there just to hold the button and make it look right.
There are plenty of fixit threads here to do either of these.
Tech Contributor
Joined: Dec 2003
Posts: 19,384
Likes: 87
From: Horncastle Lincolnshire, England
2023 C5 of the Year Finalist - Unmodified
It could be the hazard warning switch but it could also be the turn switch itself. The reason I say that is you seem to be getting intermittent operation when you're using the signals. Both switches are notoriously unreliable.
Next time it fails, recycle the hazard switch firmly a few times and see if it clears. If it doesn't, try the same with the turn switch. Hopefully it'll be obvious which one is faulty.
The good news is if it is the T/S it's much easier to change. Some have had success by just cleaning up the contacts with electronics cleaner. A quick squirt into the switch may work. If not, there are DIY threads showing how to strip it down and clean it or replace it in total. Its easy to do without too much stripping down.
If its the hazard switch, you need to either fit the bypass or replace the flasher unit. To do the latter officially you need to take out the console but as Oh 2 Fun says there's a work around by removing the radio.
Either way how about asking the seller to buy the parts?
Next time it fails, recycle the hazard switch firmly a few times and see if it clears. If it doesn't, try the same with the turn switch. Hopefully it'll be obvious which one is faulty.
The good news is if it is the T/S it's much easier to change. Some have had success by just cleaning up the contacts with electronics cleaner. A quick squirt into the switch may work. If not, there are DIY threads showing how to strip it down and clean it or replace it in total. Its easy to do without too much stripping down.
If its the hazard switch, you need to either fit the bypass or replace the flasher unit. To do the latter officially you need to take out the console but as Oh 2 Fun says there's a work around by removing the radio.
Either way how about asking the seller to buy the parts?
Last edited by DeeGee; Jan 16, 2011 at 06:57 AM.
Banned Scam/Spammer
Joined: Feb 2007
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From: Oklahoma City
St. Jude Donor '09-'10-'11-'12-'13-'14-'15-'16-'17,'19,'22
We hear of this problem sometimes and our hyperflash harness usually takes care of the problem. We have intructions attached at this link.
http://forums.corvetteforum.com/c5-p...harnesses.html
http://forums.corvetteforum.com/c5-p...harnesses.html
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Tech Contributor
Joined: Dec 2006
Posts: 10,962
Likes: 29
From: Van Buren Arkansas
Wounded Warrior Escort '11
Did you actually pull the lamps out and look at them? They don't last forever and a lamp filament might just be hanging there, connecting sometimes and others not.
Thread Starter
Racer
Joined: Jan 2011
Posts: 393
Likes: 1
We hear of this problem sometimes and our hyperflash harness usually takes care of the problem. We have intructions attached at this link.
http://forums.corvetteforum.com/c5-p...harnesses.html
http://forums.corvetteforum.com/c5-p...harnesses.html
Thread Starter
Racer
Joined: Jan 2011
Posts: 393
Likes: 1
We hear of this problem sometimes and our hyperflash harness usually takes care of the problem. We have intructions attached at this link.
http://forums.corvetteforum.com/c5-p...harnesses.html
http://forums.corvetteforum.com/c5-p...harnesses.html
Banned Scam/Spammer
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From: Oklahoma City
St. Jude Donor '09-'10-'11-'12-'13-'14-'15-'16-'17,'19,'22
Pro
Joined: May 2011
Posts: 528
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From: Burlington WA
St. Jude Donor '13-'14-'15-'16
NCM Sinkhole Donor
I just got my hyperflash bipass harness today and when I installed it (took 30 min), it works great! It solved my problem. It was hyperflashing with no LEDs installed. I did find a bad bulb, but it did the same thing after replacing it. I am glad this did the trick. 