How to Determine Which Wire Goes to Which Function for Installing Vehicle Side 7-Way

Updated 06/11/2019 | Published 06/10/2019

Products Featured in This Question

Hopkins Endurance Multi-Tow 7-, 5- and 4-Way Flat Trailer Connector - Vehicle End - Ergonomic Design

(216)

$34.33

LCD Digital Circuit Tester

(26)

$26.67

Question:

In Mike Ls response to a question, he said The blue and orange wires attached to the one connector feed the brake controller output and the 12-volt accessory feed, respectively. The orange wire connects to the terminal for the 12-volt accessory feed which is at the 1:00 position as you are looking at the front of the 7-way. The blue wire connects to the terminal in the 5:00 position. My question is, what do I do with the black wire on the original connector? Thanks

asked by: David R

Expert Reply:

It depends on what function the black wire carries. If you use a circuit tester like part # PTW2992 you can determine what function it carries and then use the attached photo to locate which pin it installs to for the Hopkins Endurance Multi-Tow 7-, 5- and 4-Way Flat Trailer Connector # HM48470.

expert reply by: Jon G