Electrical messages

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Dave Mannix

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Check trailer wiring/trailer disconnected
 
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Dave Mannix

Junior Member
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USA
Ram Year
2020
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6.7 desiel
Check trailer wiring/trailer disconnected
Our last trip out pulling our 2021 fifth wheel my 2020 Ram display was warning “ck trailer wiring/wiring disconnected” all my lights worked, but the trailer brakes did not respond to Brake pedal or braking adjustment. Has anyone had similar occurrence s
 

crash68

ACME product engineer
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There is a problem within the trailer brake circuit, it could be either in the trailer r the truck.
Do you have a 7pin plug in the bed? Those are usually just an extension of the one in the bumper. Check the backside of the 7 pin plugs to make sure they're clean and fully seated. Also check the fuse for the trailer brakes, there should be 6 fuse for the trailer 7 pin plug, the 7th fuse should be good as it powers the brake module itself.
 
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