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Hyper Flash (non LED)

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Old May 1, 2018 | 10:36 AM
  #1  
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potato potato
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From: Michigan
Hyper Flash (non LED)

Today my dash was hyper flashing in both directions. I checked my indicators and all were working and flashing at the normal rate. Has anyone else experienced this with stock incandescent bulbs?

2017 Super Duty XLT (w/o BLIS)
 
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Old May 1, 2018 | 10:49 AM
  #2  
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GABAR
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Originally Posted by potato potato
Today my dash was hyper flashing in both directions. I checked my indicators and all were working and flashing at the normal rate. Has anyone else experienced this with stock incandescent bulbs?

2017 Super Duty XLT (w/o BLIS)
Did you check and make sure all of your lights are working on the front and rear of your SD and not just the blinkers?
 
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Old May 1, 2018 | 11:12 AM
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potato potato
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I will check the other lights on lunch, thanks.
 
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Old May 1, 2018 | 11:16 AM
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briangp
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The hyper flash indicates one of the bulbs , either front or rear is out. There are 4 bulbs in the rear, 2 bulbs in the front and the LEDs in the mirrors, which I don't know if they actually have an effect on the circuit.

If you confirm that all are actually working...you can disable it with Forscan very easily, or I guess you could complain to the dealership if you like the feature. If you ever go LED though, I don't think it works....
 
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Old May 1, 2018 | 11:43 AM
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rwilimo
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I'd take a look at the the tail light harness connector on the rear of the right side of the frame rail for water entry.
 
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Old May 1, 2018 | 12:01 PM
  #6  
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PentaPop
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Originally Posted by rwilimo
I'd take a look at the the tail light harness connector on the rear of the right side of the frame rail for water entry.
Unfortunately this seems like a fairly common issue. Only had mine a couple weeks but I think I’ll drop the spare for easy access and load up every connector I can see with dielectric grease. This truck replaced the 04 I had for 14 years and it never had any sort of issues with leaky connectors. It seems like they had the connectors figured out with those multi-flanged rubber gaskets on them. Wonder why they changed them? The cream colored one by the spare on the passenger side of the frame doesn’t seem to have any sort of gasket I can see.
 
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Old May 1, 2018 | 12:15 PM
  #7  
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Hyper flash is gone, all lights working. Starting to sound a lot like a harness issue. Just seems random because it hasn't rained in awhile and no recent car washes. I'll update this thread if it comes back and I resolve the issue.
 
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Old Oct 10, 2019 | 11:15 AM
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If you make those changes to the BdyCM, will the truck still give you the warning that a trailer light is out? I'm not sure if those are related or not, but I like that feature when hooking to a trailer.
 
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