1992 Ford Bronco Tech picture

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Diagrams of 4-pin flat, 6-pin round, and 7-blade round trailer plugs with wiring

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Diagrams illustrate the pin configurations and wire functions for common trailer electrical connectors.

AI caption October 2005 · Photo 155 of 277

4-Pin Flat Plug Plug Socket Ground (White) (Brown) Markers Len (Yellow) Gmm 6-Pin Round Plug Back I Socket Front Markers (Brown) Accessmy Ground (While) (Black) Brake Len (Yellow) (Green) Right 7-Blade Round Plug Back I Socket Front 1 (White) Ground 2 (Blue) Brake 3 (Green) Markers 4 (Black) Battery 5 (Red) Left 6 (Brown) Right 7 (Yellow) Reverse