While ripping apart the dash.. - The 1947 - Present Chevrolet & GMC Truck Message Board Network

Kixwy2 · 01-08-2008, 04:55 PM

...for the forth time this weekend, I discovered that the relay that controls the hazard lights is busted. Turn signals work just fine and at a good speed, but when I tested the hazard lights they sit there and do nothing, then rapid fire blink about 3x per second. Now what?

Anyone know how easy/hard this fix is? My hazards are on the steering column and for the most part it's in good shape. I checked the fuse and traced the wire into the steering column (when I couldn't see it anymore) and everything seemed to be ok...

Or do I just shine it because they DO actually work?

BLE 'BURBAN · 01-09-2008, 12:15 AM

Swap your turn signal flasher with the hazard flasher then check the funcyionality of your hazards. If they flash normally then just replace the bad flasher.

James McClure · 01-09-2008, 03:02 AM

Kix: Sounds like the flasher is bad like BLE said. All a flasher is, is an auto reset circut breaker set to open at an amperage just above what the lamps draw. If this "set point" drops or the draw increases the lamps will flash faster. Reverse is true if the set point goes up or you blow a bulb. Lamps will flash slower or not at all. Thats why when you hook up a trailer the signal lights & 4 ways will flash faster (greater amperage draw). I use a "signal stat" 522 in both the signal lights and 4 ways and they work well with or without a trailer. jim

01-08-2008, 04:55 PM	#1
Kixwy2 Registered User Join Date: Dec 2007 Location: Central Coast, CA Posts: 177	While ripping apart the dash.. ...for the forth time this weekend, I discovered that the relay that controls the hazard lights is busted. Turn signals work just fine and at a good speed, but when I tested the hazard lights they sit there and do nothing, then rapid fire blink about 3x per second. Now what? Anyone know how easy/hard this fix is? My hazards are on the steering column and for the most part it's in good shape. I checked the fuse and traced the wire into the steering column (when I couldn't see it anymore) and everything seemed to be ok... Or do I just shine it because they DO actually work? __________________ 1974 GMC C-10; my new addiction 1998 4 Runner; daily driver

01-09-2008, 12:15 AM	#2
BLE 'BURBAN In the Forgotten far North. Join Date: Jul 2007 Location: Anchorage, Alaska Posts: 2,627	Re: While ripping apart the dash.. Swap your turn signal flasher with the hazard flasher then check the funcyionality of your hazards. If they flash normally then just replace the bad flasher. __________________ 1987 R3500 CREW CAB DUALLY (BIG RED)Acquired 06/12/2015 1990 chevy suburban V2500 5.7L My cluster Mods-Nov 2007 overhead console Stereo install Round 2 Aug 2009 Heated/turn signal mirror upgrade

01-09-2008, 03:02 AM	#3
James McClure One shot, one kill. Join Date: Dec 2007 Location: Saratoga Springs NY Posts: 859	Re: While ripping apart the dash.. Kix: Sounds like the flasher is bad like BLE said. All a flasher is, is an auto reset circut breaker set to open at an amperage just above what the lamps draw. If this "set point" drops or the draw increases the lamps will flash faster. Reverse is true if the set point goes up or you blow a bulb. Lamps will flash slower or not at all. Thats why when you hook up a trailer the signal lights & 4 ways will flash faster (greater amperage draw). I use a "signal stat" 522 in both the signal lights and 4 ways and they work well with or without a trailer. jim __________________ 1984 K20 350M engine with 465,000 miles. Well, it's finally done!! Almost 2 years of work, but it was really worth the effort. Little stuff left to do is mount winch, wet sand & buff out and build belly pan\running boards. Body work takes lots and LOTS of beer!!!! God, Guts and Guns made America and God, Guts and Guns will preserve it! The worst thing you could do is get into my sights, but that don't matter, you'll never know it, cause you'll never hear the shotJim or Paladin whichever you choose.



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