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1987 - 1996 F150 & Larger F-Series Trucks 1987 - 1996 Ford F-150, F-250, F-350 and larger pickups - including the 1997 heavy-duty F250/F350+ trucks

ABS light after LED's??

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Old Jun 3, 2007 | 03:32 PM
  #1  
mgraveman's Avatar
mgraveman
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ABS light after LED's??

Are our trucks this smart? My abs light came on and cruise quit working after I put LED taillights on. I assume I need to put a resistor in, but I've been on these forums for a while and never heard of this probem with these trucks.

Would a three ohm resistor do it?
 
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Old Jun 3, 2007 | 05:39 PM
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nighthawk285
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From: La Grande, OR
you're on the right track, but I cant give you specific numbers. if you're in a hurry, contact Subford on here, he's an electronics guru on here....otherwise, i have heard of this happening before too, so maybe even try a search.
 
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Old Jun 3, 2007 | 07:28 PM
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frederic
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Considering the taillights are driven by a simple switch underneath the brake pedal assembly, or a switch in the vac line for heavier duty F-series, it makes no sense to me WHY ABS wouldn't work correctly with LED tailights.
 
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Old Jun 3, 2007 | 09:08 PM
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nighthawk285
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is your fluid low and does everything work right?
 
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Old Jun 3, 2007 | 11:17 PM
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everything worked fine except cruise.

I'll have to plug the old lights back in and see what happens. I'm travelling now so it'll be a while.
 
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Old Jun 3, 2007 | 11:30 PM
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The LED bulbs pull a lot less resistance on the system. It thinks the bulb is burnt out. You need to add some resistance, 3 ohms might be enough but I dunno.
 
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