Troubleshooting Curt 4-Way Vehicle Wiring Harness # 56008 No Left Turn Signal/Brake Light

Updated 05/22/2024 | Published 05/20/2024

Products Featured in This Question

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

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$51.01

Hook Probe Circuit Tester

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$12.94

Question:

I oredered the following part: Curt T-Connector Vehicle Wiring Harness with 4-Pole Flat Trailer Connector Item 56008 When I first installed it a couple of months ago it worked. Now the left turn or break signal is not working. Everything else works. Help.

asked by: Greg J

Expert Reply:

You are going to want to test the module on the Curt T-Connector Vehicle Wiring Harness # 56008 with a Test Light # PTW2993. The yellow wire coming out of the module is the wire which carries power for the left turn signal and left brake light. If you have nothing coming out of the module you will want to check for power going into the module. If you have power going into the module and not out then you know the module is the issue. Then you can reach out Curt or our customer service team to begin the warranty process.

expert reply by: Bud M