Troubleshooting Why Left Turn Signal Will Not Work On Boat Trailer

Updated 05/16/2022 | Published 05/14/2022

Products Featured in This Question

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

(201)

$35.10

Hook Probe Circuit Tester

(60)

$12.41

Question:

I have Led lights on my boat trailer . Everything works but the left tail light . Both turn signals ,both hazards , both brake lights and right tail light all work . What do you think ?

asked by: James C

Expert Reply:

I would first check the bulb of the left tail light and make sure that the socket is not corroded or damaged. You would then have to trace the wire for the fixture looking for any pinched or broken wires. I would also recommended looking for cracked or worn down wires that would allow the copper conductor to come into contact with any metal on your trailer. To make the process easier you could use The Hook Probe Circuit Tester # PTW2993 and start tracing the circuit from the trailer connector, all the way back to the light fixture.

I attached a review video link below.

expert reply by: Noah E