If you have a vehicle wiring harness like the Curt T-Connector Vehicle Wiring Harness 4-Way Trailer Connector # C56327 you will have a power wire that is run to the battery on your 2016 Ford Transit T150. Make sure to check that the in-line fuse which should be located by the battery is not blown and feeding power to your 4-way connector. I recommend testing the 4-Way connector with a Circuit Tester like the Draw-Tite Circuit Tester # PTW2993.
If the power wire and fuse are ok, check for... view full answer...
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