Intermittently, my turn signal will fail, maybe a couple of times a week. I'll rotate the stalk over, but the green arrow doesn't flash and there's no clicking. I haven't been able to verify whether or not the actual lights on the outside of the car are flashing. When this happens, I can push the hazard light button so that the hazards flash at least once, and turn signal functionality is restored to normal.

Anyone else encountered something like that, and/or know what causes it? It's not a huge deal, since I can restore the functionality, just a minor annoyance.

 

This is a common problem with c5s. I had the same and replaced the hazard flasher switch and it solved the problem. I changed mine by removing the kick panel below the steering wheel and reaching up from underneath. Use Google search and you will find threads about this. Good luck with your repair.

 

Yes, it sounds like the contacts for flasher in the Hazard switch are the problem. I can provide you with 4 possible fixes for this. Not at home, please respond to remind me to provide you information. Very common issue.


Mr. Sam

 

I would be grateful if you'd provide the info at your convenience!

I find it interesting that the hazard switch has an effect on the turn signals, though. Maybe it's just the way Chevy has these things wired with the flasher module.

 

Here are two links that will help you:


http://www.kd5fx.com/HSwitch/HSwitch.htm
http://forums.corvetteforum.com/1569256474-post50.html

Yes it is strange but they use the same flasher(hazard flasher)for both functions.

 

Here are possible fixes and the schematic.

If you have issues with the turn signal on only one side, that would indicate a Multifunction switch issue. If you have issues with both sides it would be the Hazard switch.

Also a Hyperflash mod (and others) only bypasses the turn signal function of the Hazard switch. If your actual Flasher in the Hazard switch is bad you will NOT have the "hazard" function by just installing a Hyperflash.

The reason so many Hazard switches fail is NOT the internal Flasher but the internal contacts that feed it for the turn signal function. A different set of contacts feed the "hazard " function. I can post the schematic for those who can read it. That is why people say when having turn signal issues to try and exercise the Hazard switch by pressing the “hazard” function, thereby helping to swipe the contacts for the turn signals. A temporary fix.

Whenever a “hard/consistent” turn signal issue sets in for either the left or right turn signals it is NOT the hazard switch but the Multifunction switch.

Here are 4 ways to fix a turn signal Hazard switch issue.

1. Remove the console and radio surround bezel and remove and replace the Hazard switch. Cost about $25 for a new switch and can be done in about 1 to 1 1/2 hours. Very easy to do, not hard or really complicated.

After removing the console and radio bezel you need to remove the radio. If you look at your replacement switch you will see the 2 green tabs on the top and bottom that lock it in place. You will be able to see the lower one when the radio is removed. Push up on the lower tab with a screwdriver while pressing in on the lower part of the switch and you can release the lower tab. Now the switch should be angled up on the end where the wiring connects. Now take a large flat bladed screw driver and place it at the top of the switch. Give the screwdriver a swift rap with a hammer. DON’T overdo it, just a reasonable hard hit and the switch will just pop out.

How to remove the console and bezel for access to the radio:

http://www.vetteessentials.com/instr...zel_howto.html

If you have a manual transmission you can totally remove the radio bezel very easily to allow better access. No need to remove the shifter ****. Just pop the shifter boot loose and rotate it and it will allow you to lift the bezel up and over the shift boot and shifter ****.

2. Buy a Hyperflash unit for about $65 and install it under the dash. Just requires removing the Knee bolster. About a 1/2 hour job.

3. Buy a used wiring harness that goes from the steering column to the hazard switch. Remove the knee bolster and unplug the existing one and install the replacement. Then install the new Hazard switch on the other end and just place it under the ignition switch where you can access it if you ever need Hazards. Dash will look stock since the old bad switch is still there. Cost is 25$ for switch and about $25 for a used harness. Takes the same time as installing a Hyperflash unit.

Here is info on the wiring harness:

GM P/N 12163776

http://www.corvetterecycling.com/product-p/233776.htm


4. Lastly, this is what I did. A relocation similar to #3 but I used the process in #1 to move the existing wiring harness to beneath the ignition switch where I placed a new Hazard switch. I then reinstalled the old Hazard switch in the dash for a stock appearance.

Here is a link for relocation:

http://forums.corvetteforum.com/c5-t...elocation.html

Schematic:




Mr. Sam

 

Thanks Mr. Sam!

 

As others have said the haz switch and flasher are one in the same built together. I removed my kick/knee panel and removed the haz button and used a big screw driver to punch the switch back into the dash and then reached up through the hole under the knee panel and fish it out. I plugged the new one in and left it just under the carpet next to console side for easy access next time. I just put the haz switch buttom back in place for cosmetic looks only. I had to wrap some tape around the buttom to get it to stay in place.

 

That works. In my relocation info I just put the old switch back in the dash and pressed the button back on it.


Mr. Sam

 

I hate to tell u but i was going to do the same thing but dropped it down inside dash on top of radio and had to pull console and radio to retrieve it. I got my suggestion from mr sam, he is the man on this topic.