What is AX Auxiliary Pin on Hopkins 7-Way Trailer Connector
Question:
I want to know the function of a wire called AX, Auxiliary, on a #48505 Hopkins brand 7 blade trailer connection kit for my 2012 GMC Sierra.
asked by: Gerald D
Helpful Expert Reply:
The AX (Auxiliary) location on the Hopkins 48505 connector that you reference, which is the same one used on the Hopkins # H20046, is typically used for 12V power. If you take a circuit tester like part # PTW2979 or # C73NR you should see that the corresponding pin on your 2012 GMC Sierra 7-Way (in the 1 o'clock position) has constant 12V of power running to it.
What you would connect this to on your trailer are things like your batteries, a trailer jack, or anything that would need to be charged or powered when connected to your Sierra.
I have attached a picture of the typical way that a trailer side 7-Way is connected.
Products Referenced in This Question
Curt 7-Way to RV Socket LED Circuit Tester - Vehicle End
- Electrical Tools
- Testers
- Circuit Tester
- Tow Function Tester
- CURT
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Product Page this Question was Asked From
Hopkins 7-Way RV Style Connector with Molded Cable - Trailer End - 8' Long - RV Standard
- Trailer Wiring
- Trailer Connectors
- Trailer End Connector
- 6 - 10 Feet Long
- Plug and Lead
- 7 Round - Blade
- Hopkins
more information >
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