Maryland Trailer left and brake signal lamp fault

BaltimoreF150

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Andy
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Baltimore
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F150 Hybrid 145” 4x4 FX4 V6
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Anyone have this issue or know how to fix? Lights on my trailer work fine but this keeps popping up each time I turn it brake. View attachment 15287
 

Moz

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Having same issue, my 2016 had it as well but not nearly as persistent. Any luck with solution? would love to just turn it off, I know my trailer(s) lights are working I don't need the handholding by my truck especially with how unreliable it is with the false negatives.
 

Pedaldude

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Sometimes the impedance of a working bulb will be off enough to trip a code. Try swapping bulbs and if that doesn’t work, it could be a wiring issue.
 

John_C

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If your trailer has LED lights, you'll just need to add a resistor to whichever light is giving you the error.
 

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