Is There 12V Power Function for 7-Pole Round Connector

Question:

is there 12v power on a 7 way round pin connector?

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Expert Reply:

The center pin for a 7-Pole round connector, like part # PK11700, can be used for 12V power but that isn't always the case. It is typically labeled more as an auxiliary pin so it can be used for any application. If you'd like for it to be used for 12V then you can definitely use it that way but you need to make sure the center pin on both your vehicle side and trailer connectors are connected to the 12V power functions for it to work properly. You can use a circuit tester like part # PTW2992 to test for power on your vehicle side and you can apply 12V power to the center pin for your trailer connector to confirm what each of those are connected to.

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Jon G

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