7 Way Trailer Plug Wiring Diagram Semi Truck

The basic purpose remains the same whether your truck and trailer is using a 4 way 5 way 6 way or 7 way connector.

7 way trailer plug wiring diagram semi truck.
How to hook up your trailers 7 way plug.
I do have a handy trailer wiring faq article that would be perfect for you.
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Wiring diagram for a 1997 peterbilt semi tractor with 7 pin round connector.
Trailer wiring diagrams for single axle trailers and tandem axle trailers.
Discover ideas about trailer build.

Wiring diagram for semi plug google search.
764 way wiring diagrams 812015 7 way wiring diagrams.
When i plug my trailer lights into the truck plug and turn on my running lights it blows a fuse on both of my trucks.

7 way trailer rv plug diagram.
I have included a link to it.
As you can see the 7 way round pin trailer connectors do not use the typical pin functions.

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This guide is here to help you.
The 7 way trailer plug is a round 2 diameter connector that allows an additional pin for an auxiliary 12 volt power or backup lights.

7 way plug wiring diagram standard wiring post purpose wire color tm park light green battery feed black rt right turnbrake light brown lt left turnbrake light red s trailer electric brakes blue gd ground white a accessory yellow this is the most common standard wiring scheme for rv plugs and the one used by major auto manufacturers today.
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There are two wiring codes for different types of 7 pole plug and socket sets.

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Most rvs use the rv wiring code for the type plugsocket that has 6 flat contacts surrounding a center round pin.

I have also included a picture that shows the typical wiring diagram of a 7 way round pin trailer side connector.
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By law trailer lighting must be connected into the tow vehicles wiring system to provide trailer running lights turn signals and brake lights.

7 pole round pin trailer wiring connector item pk11700 are listed below.
If you can not figure out your wiring even after reading this guide then contact your local mechanic or trailer shop for help.
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