Muzique

Guys, the turn signals (left & right) on my '04 C5 turn on but don't flash. However, when I put hazards on they flash regularly. Anyone know what's going on here?

rohit13

Bad hazard switch. The triangle button needs to be replaced.

Boston Driver

Correct. The hazard relay houses TWO separate relays, one for turn indicators, the other for the hazards.

Muzique

So, even though the hazard switch appears to be functioning normally, it's actually causing the turn signals to malfunction? *Puzzled*

Muzique

Oh, that makes sense. I'll get that replaced right away.
Thank you very much!!!

Just Me

and its a very common failure part

Jsantoyo89

i had the same issue before you get them replaced take the triangle thing out and clean it up a bit that worked for me and haven't had any issues with it yet.

Boston Driver

Yes...As I posted earlier, there are two separate relays in that part. Still not convinced? Check out Kris Hansen's tech article when he took one apart to repair it here: https://www.audiworld.com/tech/elec160.shtml

smitty3ism

Great post, Thank you for the link and great photo's "Boston Driver."

1. BUT I'M COMPELLED TO "ADD TO YOUR DESCRIPTION" ABOUT REMOVING DASH MOLDING. THERE ARE #6 CLIPS #3 ON TOP #3 ON BOTTOM.
2. FLASHER ITSELF, THE "METAL SPRING CLIPS ARE ON (EACH SIDE.) (NOT REALLY CLEAR AS TO WHERE THEY WERE.) So I broke the red diamond face off it trying to understand how it was clipped in there.