Curt 4-Way Circuit Tester

Curt 4-Way Circuit Tester 

Electrical - Testers

4-Way

Part: 58261

Tests turn signal, tail light, and brakes
light functions

Instructions:
Plug the tester into the towing vehicle's
4-way flat connector. Turn on the light
you want to test. The corresponding light
on the tester should turn on.