Quote:
Originally Posted by jgannone@gmail.com
What is the 7pin connector?
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The 7 pin connector is your main trailer plug connection when towing. You should be getting charging voltage from your truck when it is running and your trailer is connected to it.
To verify you are getting charging, check the voltage at your trailer batteries with the truck shut off (should be ~12.5V) and then with your truck running (should be ~13.5-14.5V).