Troubleshooting Trailer Wiring Install for 2020 Toyota Highlander that is Not Active

Updated 04/13/2021 | Published 04/12/2021

Products Featured in This Question

T-One Vehicle Wiring Harness for Factory Tow Package - 4-Pole Flat Trailer Connector

(246)

$23.04

T-One Vehicle Wiring Harness with 4-Pole Flat Trailer Connector

(480)

$74.44

Question:

I purchased the unit that plugs into the socket order the rear bumper. I checked the fuse number 15 for the trailer lights and it’s okay. Am I missing something else? Thanks

asked by: Rob H

Expert Reply:

Sounds like you should have went with the Tekonsha trailer wiring harness part # TK99FR which comes with the harness of the # TK74FR but also comes with the needed converter box harness which you are missing. The converter harness is also not available separately.

expert reply by: Jameson C