Troubleshooting Wiring Harness Installation for a 2005 Honda Accord

Updated 08/26/2019 | Published 08/23/2019

Products Featured in This Question

Hook Probe Circuit Tester

(66)

$12.94

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

(126)

$41.48

Question:

I bought a trailer wiring T connectors C55502 for my Honda Accord 2005 Sedan. I plugged all wires exactly like they show in the video. And nothing works on the trailer. Does the C55502 is broken or I miss something in the installation that is not showen in the video?

asked by: Martin

Expert Reply:

First manually test the 4-Way on the Accord with a circuit tester like # PTW2993. Test each pin on the 4-Way individually, one at a time, while you have a buddy activate the corresponding function in the Accord. Make sure you get power at the appropriate pin and that you aren't getting power on the others.

You will want to inspect the 4-Way itself for any debris or corrosion that might be built up around and inside the pins, cleaning out as needed. Also try and inspect any wiring that you can gain access to behind the connector to make sure there aren't any pinched or exposed areas.

If manually testing the 4-Way reveals that everything is working as it should, then the issue is on the trailer side. You will want to start by inspecting the trailer side 4-Way for debris/corrosion. Then make sure its main ground is securely attached to a clean, bare metal surface. If you don't have power at the 4-Way connector, test the wiring going into the converter box from the vehicle side because the converter box could be your issue. If your 4-Way is not working correctly per your testing, check all ground connections on your Accord to confirm they are clean and not obstructed, as well as any fuses.

If after this you are still unable to locate and resolve the issue please let me know and we can continue to troubleshoot.

expert reply by: Patrick R