Troubleshooting Wiring Harness On 2004 Toyota Tacoma
Products Featured in This Question
Question:
I have part #hm48895. I have hooked up the converter as shown and verified that the converter is receiving signal on all input wires. However the right side turn signal from the converter is not outputting a signal. The weird thing is if I remove the bulb from the right turn signal then the converter works fine. The bulb is good and of the correct type and wattage. Any suggestions? Thanks
asked by: Marc
Expert Reply:
It sounds like there may be a short in the wiring for your Tacoma. You can do a quick test by using a circuit tester like part # PTW2993.
To see if the converter on the # HM48895 is sending an output signal to the right side, have someone turn on the right turn signal while you use the circuit tester and check the pin on the 4-way connector that the green wire is attached to. If it shows no power check the green wire that is coming out of the converter. If that shows no power, check the wire leading into the converter for power. If there is power going into the converter but not coming out, the converter is bad and will need to be replaced.
I have attached a link to a helpful article you can check out.

Product Page this Question was Asked From
Hopkins Tail Light Converter with 4-Way Flat Trailer Connector
- Custom Fit Vehicle Wiring
- Trailer Hitch Wiring
- Vehicle End Connector
- Converter
- Universal Fit
- 4 Flat
- Plug and Lead
- Splice-In
- Hopkins
more information >
Featured Help Information
Instructions
Miscellaneous Media
Continue Researching
- Q&A: Replacement Hub and Drum assembly for ALKO 8480
- Q&A: Wiring Diagram for a 1997 Peterbilt Semi Tractor with 7-Pin Round Connector
- Article: Wiring Trailer Lights with a 7-Way Plug (It's Easier Than You Think)
- Q&A: How to Make an Adapter to Go from Semi Truck 7-Way Round to RV Style 7-Way Blade on Trailer
- Q&A: Recommended Replacement For A Tie-Down Engineering Disc Brake Hub
- Q&A: Is There an Exact Replacement For a Tie Down 46250 Brake Caliper or What Option is There
- Q&A: Trailer Hitch that Can Fit 2017 Volkswagen e-Golf
- Q&A: Does 2022 Jeep Grand Cherokee Require Use of Roadmaster Brake Light Relay
- Article: Wiring Trailer Lights with a 4-Way Plug (It's Easier Than You Think)
- Article: Installing an Electric Brake Controller on 2007-2013 GM Full-Size Truck or 2007-Present GM SUV
- Article: Aftermarket Brake Control Wiring for 07-13 GM Full-Size Truck with Factory-Integrated Brake Control
- Article: Trailer Wiring Diagrams
- Article: Troubleshooting 4 and 5-Way Wiring Installations
- Article: Trailer Lighting Requirements