Identifying Circuits that Run to 2018 Honda Odyssey Trailer Wiring

Updated 08/04/2021 | Published 08/02/2021

Products Featured in This Question

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

(46)

$65.79

Hook Probe Circuit Tester

(60)

$13.72

Question:

My Left and Right turn signals work great. But when I step on the break, my sequential light bar blinks like a 4-way flasher when one of the turn signals is on. Do you have the description of each wire color/feature Honda has going into the blue connector? I am having the feeling that the Light Bar Controller is at fault. I just wanted the turn signals to work. Sorry I sent you a blank email earlier. Thank you for your help,

asked by: Bob L

Expert Reply:

The only way we could help you identify the functions of the wires that run to your Honda trailer wiring connector would be with a circuit tester like part # PTW2993 which you'd use to probe each of the wires while applying the different lighting functions to see what comes on and go from there.

expert reply by: Jameson C