4 Pin To 7 Pin Conversion. Verify the harness color codes at each tail light. The three additional pins are: trailer brakes, back-up lights and trailer battery charging.
Verify the harness color codes at each tail light. Cut the four-pin plug off of the trailer harness. There should be a common color for both the tail lights.
There should be a common color for both the tail lights.
The three additional pins are: trailer brakes, back-up lights and trailer battery charging.
Verify the harness color codes at each tail light. I need to adopt new key on Crafter, but vith VCDS it is not possible! Seven-pin connectors are rarely used on trailers for local use.