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Trailer Brake Controller Installation - 2002 Ford Ranger

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How to Install a Trailer Brake Controller on a 2002 Ford Ranger

Curtis F.


Where does the white wire hook up to before you put the excess wire thru the firewall. I saw you hook up the black wire to the 40 amp so does the white wire hook up to the 30 amp.

Etrailer Expert

Rachael H.


The circuit breakers are the 40 amp for the 12Volt lead on the 7-way, and the 20 amp or 30 amp cictuit breakers is for the power to the brake controller. The white wire that was connected to the blue wire on the 7-way is routed up to the front, routed through the firewall, and used to connect to the blue wire on the brake controller. It is not intended to be connected to a circuit breaker. I have included a link that details the installation of the # ETBC7 for a brake controller install for addition reference.

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