jeffball610 Posted December 31, 2024 Report Share Posted December 31, 2024 I'm sure some of the more knowledgable members know this one. If your brake lights (mains) and your turn signals aren't working, it's likely your hazard switch. My switch cracked when I tried to install the missing button. After the car sat for a while I couldn't figure out why those two items wouldn't work. The 3rd brake light works, but only when the hatch is closed. The contacts for the hatch electricals go through the hatch struts. Wild. After digging through the electrical diagrams, I noticed that the brakes go through the hazard switch. Inside the switch, there are 2 terminals that are "on" when the hazard switch is off allowing current to flow to the turn signals and the brake lights. When the switch is engaged, it bypasses that circuit and only the hazards flash. Since my switch is cracked, I just wedged something behind the switch so I have turn and brakes lights for now. I'll replace the switch later, but this will work for now. Most cars have their hazards cancel the turn signal for obvious reasons. Since the Starquest only has one bright light for turn and brake, the brake circuit is wired in with those two. Convoluted, but it works. I'm still blown away that the hatch carries current with 3 contacts when it's closed 😂 Quote Link to comment Share on other sites More sharing options...
psu_Crash Posted January 29 Report Share Posted January 29 I had an issue years ago where the 3rd brake light was intermittent. After a little research it was just those contacts on the hatch strut. Cleaned them up and all good. The rear defrost also goes through those contacts. Quote Link to comment Share on other sites More sharing options...
techboy Posted January 30 Report Share Posted January 30 That's interesting. When I did my Euro tail light install i had to do some rewiring with the hazard and I always wondered why. I think I had to cut a wire. But, I was just following a guide, so I just proceeded. This makes sense though. Quote Link to comment Share on other sites More sharing options...
psu_Crash Posted January 30 Report Share Posted January 30 19 hours ago, techboy said: That's interesting. When I did my Euro tail light install i had to do some rewiring with the hazard and I always wondered why. I think I had to cut a wire. But, I was just following a guide, so I just proceeded. This makes sense though. Sometimes blind faith is all you need! 😄 Quote Link to comment Share on other sites More sharing options...
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