7 Way Round Trailer Plug Wiring Diagram

7 pin n type trailer plug wiring diagram 7 pin trailer wiring diagram the 7 pin n type plug and socket is still the most common connector for towing.

7 way round trailer plug wiring diagram.
The basic purpose remains the same whether your truck and trailer is using a 4 way 5 way 6 way or 7 way connector.
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Identify the wires on your vehicle and trailer by function only.

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

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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.
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Check with a test light or vom.
The black sometimes red 12v and blue electric brakes wire may need to be reversed to suit the trailer.

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.
Sometimes the vehicle manufacturer will run the wires to an easily accessible plug underneath the vehicle or behind the paneling in the back cargo area.
There are two wiring codes for different types of 7 pole plug and socket sets.

The wiring diagram for the vehicle side connector pk11720 is pictured also.
764 way wiring diagrams 812015 7 way wiring diagrams.
Color coding is not standard among all manufacturers.

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If you can not figure out your wiring even after reading this guide then contact your local mechanic or trailer shop for help.
Trailer electrical connectors come in a variety of shapes and sizes.

Recommended use with 47295 and 47285.
7 way trailer rv plug diagram.
This supplies power to the road lighting.

T ones come pre wired with a 4 way flat trailer connection and can be expanded to 5 way 6 way or 7 way trailer connections through the use of a wiring adapter.
I have added a photo detailing the wiring connections for the pollack heavy duty 7 pole round pin conncetor pk11700 see link.
Round 1 14 diameter metal connector allows 1 or 2 additional wiring and lighting functions such as back up lights auxiliary 12v power or electric brakes.

This is a sae j560 compliant connector.