Troubleshooting Dim Function of Brake Light and Turn Signal on Travel Trailer

Published 01/10/2018

Products Featured in This Question

Hook Probe Circuit Tester

(60)

$12.27

16 Gauge Primary Wire - Black - Per Foot

(61)

$1.14

Question:

The right rear tail light on my travel trailer work as a running light but the brake light / turn brighter are very dim is it just sound like a connection issue?

asked by: Hunter S

Expert Reply:

Since the brake light and turn signal are still functioning, just are dim, it does sound like a connection issue. I recommend checking the ground for corrosion or rust and just cleaning it up and if that doesn't solve your issue, then put a circuit tester like # PTW2993 on it. The incandescent bulb in the tester should show a difference, so if it does or doesn't you have isolated which wiring needs to be checked for a short and replaced. Normally light wiring is # 16-1-1 wire.

expert reply by: Jason S