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Trailer lights flashing

bamorris2
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bamorris2 Enthusiast

bamorris2

Posted
Posted (edited)

I know this has been covered in many other threads,  and that the truck pulses the lights every several seconds as part of the trailer security feature. Mine does that too. But it will then start to flash much more rapidly. Like multiple times per second. See attached video. Anyone else have this happen and know what causes it?

Edited by bamorris2
sldhead700 Enthusiast

sldhead700

Posted
Posted

It's flashing your clearance lights and taillights. I would guess a wiring issue? Have you tried a test light on the back of your truck to make sure that it's right?
If so, than it's on the trailer side of things.

Sent from my Pixel 4 XL using Tapatalk

bamorris2 Enthusiast

bamorris2

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2 minutes ago, sldhead700 said:

It's flashing your clearance lights and taillights. I would guess a wiring issue? Have you tried a test light on the back of your truck to make sure that it's right?
If so, than it's on the trailer side of things.

Sent from my Pixel 4 XL using Tapatalk
 

Yes all of the power sources are getting proper power. It only does this when the truck is parked and off. It stops just by unlocking the truck or starting it up. All of the trailer lights work perfectly otherwise. 

sldhead700 Enthusiast

sldhead700

Posted
Posted
Yes all of the power sources are getting proper power. It only does this when the truck is parked and off. It stops just by unlocking the truck or starting it up. All of the trailer lights work perfectly otherwise. 
Ohh..... Beyond my experience.
I'll be watching to see what you find, hopefully others will have the answer!

Sent from my Pixel 4 XL using Tapatalk

  • 2 weeks later...
sldhead700 Enthusiast

sldhead700

Posted
Posted
I know this has been covered in many other threads,  and that the truck pulses the lights every several seconds as part of the trailer security feature. Mine does that too. But it will then start to flash much more rapidly. Like multiple times per second. See attached video. Anyone else have this happen and know what causes it?

Any updates, was the tech bulletins from rst helpful? Just curious.

 

Sent from my Pixel 4 XL using Tapatalk

 

 

 

Greyhound6.2 Enthusiast

Greyhound6.2

Posted
Posted

Mine will flash rapidly several times per second if I lock my truck by pressing the button on the outside of the door handle. However it will act completely normal if I use the key fob to lock the truck. Not sure of why it acts differently but it is 100% repetable like that. Only the brake/tail lights flash rapidly 

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