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Hyperflash Signal Lights

Phantomfixer

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Guys,I could use some help.I have a 2021 Ranger Lariat FX4.My right turn signal indicator, on my dash, is hyper flashing but my signal lights are working properly.Any ideas on what could be causing this?
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Joeiconic

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That is usually a built in signal to alert you that you have a bulb failure on the side it’s flashing on. Usually a tail light is out.
 
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Phantomfixer

Phantomfixer

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That is usually a built in signal to alert you that you have a bulb failure on the side it’s flashing on. Usually a tail light is out.
Understood...but all the lights look fine.All my lights are factory LED
 

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Understood...but all the lights look fine.All my lights are factory LED
Not ALL are LED. Even on the Lariats, the front turn signals along with a few others are still incandecent, unless you or someone else changed them. Maybe it's the one in the mirror on that side.
 
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Phantomfixer

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Not ALL are LED. Even on the Lariats, the front turn signals along with a few others are still incandecent, unless you or someone else changed them. Maybe it's the one in the mirror on that side.
You are correct about the bulbs.I just meant that I had not replaced any of the stock bulbs standard or led.All are stock bulbs and all seem to be working properly.Just seems to be a problem with the indicator on the dash but only right turn indicator
 


Big Blue

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You are correct about the bulbs.I just meant that I had not replaced any of the stock bulbs standard or led.All are stock bulbs and all seem to be working properly.Just seems to be a problem with the indicator on the dash but only right turn indicator
As was said the hyperflash in the dash is the bulb out indication. When I changed out my XLTs front turns to switchback LEDs I had to go into Forscan and turn the front hyperflash off to get my dash to flash correctly. LEDs don't have as much resistance as incandescents so the truck thinks there is an open circuit. Not sure why your is doing it if all the bulbs are good.
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OFC Ranger

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As was said the hyperflash in the dash is the bulb out indication. When I changed out my XLTs front turns to switchback LEDs I had to go into Forscan and turn the front hyperflash off to get my dash to flash correctly. LEDs don't have as much resistance as incandescents so the truck thinks there is an open circuit. Not sure why your is doing it if all the bulbs are good.
hyperflash
It is not any bulbs. It is the BCM being stupid.

It thinks something (bulb fault) thus wit it says something (dash indicator).


OP, you can try disconnecting your battery for a length, but I doubt it will work. I tried this with no luck however. Your next step would be to use a program like FORSCAN to see if it detects something re-settable.

Doing extensive custom wiring in my truck I can say these new systems are a huge PITA.
 
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Phantomfixer

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It is not any bulbs. It is the BCM being stupid.

It thinks something (bulb fault) thus wit it says something (dash indicator).


OP, you can try disconnecting your battery for a length, but I doubt it will work. I tried this with no luck however. Your next step would be to use a program like FORSCAN to see if it detects something re-settable.

Doing extensive custom wiring in my truck I can say these new systems are a huge PITA.
I did try discoing the battery but no luck there
 

OFC Ranger

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I did try discoing the battery but no luck there
Yea I figured as much, but always worth trying.

I have had the same problem you have for quite some time, cept' it is my left dash signal. Ive just been to lazy to order an actual forscan cable (the one I have won't work) to trouble shoot it more. Just kind of got use to it after a while.
 
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Yea I figured as much, but always worth trying.

I have had the same problem you have for quite some time, cept' it is my left dash signal. Ive just been to lazy to order an actual forscan cable (the one I have won't work) to trouble shoot it more. Just kind of got use to it after a while.
Going to the dealer this week for some rubber trim replacement.They told me they would check it out for me.I'll let you know what they find.Thx for your comment
 

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Going to the dealer this week for some rubber trim replacement.They told me they would check it out for me.I'll let you know what they find.Thx for your comment
If they say they fixed it by resetting something on the computer, let me know for sure lol just means I need to not be lazy and get forscan up and running.
 

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Since changing out my headlights and tail lights to full LED my left dash indicator hyperflashes. But everything is working fine. I just now know when my left is on in relation to my right. ??.
 
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If they say they fixed it by resetting something on the computer, let me know for sure lol just means I need to not be lazy and get forscan up and running.
Just wanted to let you know that I just heard from the dealership and it was the tail light.It worked fine but it wasn't as far as the computer was concerned.They told me this was their second one this month with the same issue.Replacement price...$1100
 

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Just wanted to let you know that I just heard from the dealership and it was the tail light.It worked fine but it wasn't as far as the computer was concerned.They told me this was their second one this month with the same issue.Replacement price...$1100
Warranty?
 
 








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