HELP no brake lights or turning signals! - Ford Powerstroke Diesel Forum
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Old 11-03-2012, 03:33 AM
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HELP no brake lights or turning signals!

I have a 99 F350 diesel dually. my turn signals went out a couple weeks ago along with the hazard lights. checked all fuses fount nothing, well a few days ago my brake lights stop working and once again i checked all fuses and still found nothing... i do have running lights but not turn signals or hazards front or back and no brake lights, i did check my bulbs and replaced them. i searched and found that there is a relay for the signals behind the radio in the dash? does that sound right? is there also a relay for brake lights? i cant go much longer like this being that im on the interstate everyday and its very hard to weave in and out of traffic with no turnsignals and hard to stop without wondering if someone is going to hit my truck in the rear lol any help is greatly appreciated! thanks!
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Old 11-03-2012, 05:55 AM
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I could be wrong but I do believe the turn signals and brake lights all run through the multifunction lever. AKA the turn signal lever.....
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Old 11-03-2012, 05:57 AM
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So you're thinking that could be bad?


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Old 11-04-2012, 01:24 PM
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I have had to replace them on chevrolets and one of our Macks. We couldn't keep things simple we had to run brake lights and hazards through the turn signal lever. ( Multi function lever ) not cheap either... good luck.
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Old 11-04-2012, 05:37 PM
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Multi function switch would be my guess
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Old 11-08-2012, 06:17 PM
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Switched out the multifunction switch and the brakes lights are working again! But still no hazard lights or turn signals, I heard of a flasher relay? And that it's under the dash somewhere behind the radio? I hear something clicking when ever I turn the hazard lights on but no lights flash any more help would be good


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Old 11-09-2012, 02:17 PM
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I did read that there is a flasher behind the radio. I have an 05 and the trim and radio come out quite easy, not sure on a 99. good luck..
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Old 11-15-2012, 01:46 PM
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Hey there, I'm having a very similar problem but i have tried the flasher relay fuses and the multi function switch and still no turn signals nor hazards.
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Old 12-04-2012, 10:55 AM
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No Flashers, turn signals or Rear brake lights

97 F350 7.3, So I hook up my plow today and when checking the lights I realize I have no turn signals, rear brake lights and hazards. My 3 brake light does work above the bed. Just changed out the turn signal and still nothing. Could it be either my turn signal or flashers relay if so how could I test it?
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Old 12-04-2012, 11:51 AM
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Quote:
Originally Posted by Snow White View Post
97 F350 7.3, So I hook up my plow today and when checking the lights I realize I have no turn signals, rear brake lights and hazards. My 3 brake light does work above the bed. Just changed out the turn signal and still nothing. Could it be either my turn signal or flashers relay if so how could I test it?
Ok so dummy me It was the multi switch. When I checked the flasher relay on back i didn't plug it in right so corrected that and WALA it works!!!
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