Which Wires Are Used On A 2021 Ford E450 To Attach A Trailer Brake Controller

Question

Question:

Hello my 2021 Ford e450 is wired for a trailer brake control but of the four wires at the harness which ones - + brake output. Is there a wire color chart because my Ford loom does not match the pin location. I pulled my pins from the harness and just need to match them up. Thanks

asked by: John

0

Expert Reply:

If the wiring on your 2021 Ford E450 didn't match something like the Tekonsha Plug-In Wiring Adapter # 3034-P, which is designed for the port on an E450 cutaway with the factory installed 7 Way, then the only way to know will be to test for function. You may be able to contact a Ford dealer to see if they can tell you which color handles which function, but I am putting some emphasis on may.

On the controllers we carry, the white wire will be the ground, the red will be the stop light/brake switch, the blue will be the brake controller output, and the black will be 12 volt power.

I did include a picture of how the port on the # 3034-P is wired for reference as well.

expert reply by: Lazer S

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Tekonsha 3034-P Wiring Layout
(click to enlarge)

Answer 1

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Answer 2

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Answer 3

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Answer 4

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Answer 5

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Answer 6

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Answer 7

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Answer 8

You're right, the mounting bracket is unique (in a good way) for the Curt TriFlex NEXT Trailer Brake Controller #C24VV. The bracket is smaller and all you do is put the included adhesive tape on the bracket and stick it wherever you like under…

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Answer 9

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Answer 10

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Answer 11

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Answer 12

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Which Wires Are Used On A 2021 Ford E450 To Attach A Trailer Brake Controller

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