Back-up lamps

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Jul 14, 2020 | 12:42 PM

Lmarree

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Back-up lamps

2016 f150, back-up lamps are on when in reverse, but I have no 12v. In the center of the 7-pin trailer plug. Is there fuse for this somewhere?

Jul 14, 2020 | 12:45 PM

CR172

Fleet Mechanic

Joined: Feb 2017

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From: N. Texas

The plug only supplies 12V when there is a load attached if I'm not mistaken. And by load I mean a battery, not just the lights.

Jul 14, 2020 | 03:34 PM

GlueGuy

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From: Mts. S. of San Francisco

+1. The trailer connector is "smart". I would amend that to actually be "not stupid", and there is a fair amount of subjectiveness between "smart" and "not stupid".

But what CR172 said is true. The truck "knows" when there is a trailer attached, and does not send power back there unless a trailer is connected.

Jul 14, 2020 | 04:12 PM

Kingofwylietx

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I attached my auxiliary reverse lights to the 7-pin connector and they come on each time I put my 2017 into reverse.
Perhaps he needs to attach a light to it or he needs to install a fuse or relay...but it should work as OP wants it to work.