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After topper install - trailer brakes disabled service required

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1.7K views 11 replies 9 participants last post by  ccarlton28  
#2 ·
Does the topper have a high mounted brake light? I can only make the wildass guess that they tapped the wiring harness for something like that and freaked the towing system out (since it has the integrated lighting check).

I would try to disconnect their harness and see if it clears the error. It should be a plug for removal of the cap unless they're total hackers.
 
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