Troubleshooting Low Output Voltage on Hopkins Trailer Taillight Converter Box
Question:
Hello Experts, Application: Trailer hookup from International school bus. Qty 4 ea model: 310-0041-560 Rev. c09-10 All four converters outputs are 5vDC or less to trailer. Voltage in to converter is 12vDC. What could cause the low output?
asked by: Mike M
Expert Reply:
It's possible the converter has an internal short and is damaged. Or it could be possible that you have a weak ground for the converter. Most likely though the box has shorted out. They are designed to fail as a way to prevent a short in trailer wiring from making it back up to the vehicle wiring so that is what is happening.
You'd want to track down the short on the trailer wiring and fix it before replacing the converter.
![Jameson C](https://images.etrailer.com/static/images/catg/people/371_tn.jpg)
Product Page this Question was Asked From
Hopkins Tail Light Converter with 4-Way Flat Trailer Connector
- Custom Fit Vehicle Wiring
- Trailer Hitch Wiring
- Converter
- 6 Feet Long
- Universal Fit
- 4 Flat
- Hopkins
more information >
Featured Help Information
Instructions
Miscellaneous Media
Continue Researching
- Shop: Trailer Wiring
- Shop: T-One Vehicle Wiring Harness with 4-Pole Flat Trailer Connector
- Article: Trailer Wiring Diagrams
- Shop: T-One Vehicle Wiring Harness with 4-Pole Flat Trailer Connector
- Shop: Curt T-Connector Vehicle Wiring Harness with 4-Pole Flat Trailer Connector
- Article: Troubleshooting 4 and 5-Way Wiring Installations
- Shop: Trailer Hitch
- Shop: Curt Powered Tail Light Converter w/ 4-Way Flat Trailer Connector and Install Kit
- Shop: Curt Powered Tail Light Converter with 4-Pole Flat Trailer Connector
- Video: Trailer Wiring Harness Installation - 2002 Chevrolet Express Van
- Q&A: Can a Taillight Converter Module Go Bad After Working Properly for Months
- Q&A: Troubleshooting Trailer Running Lights Only Getting 6-Volts
- Q&A: What Should the Voltage Output Be at the 4-Way Plug on Curt T-Connector Wiring Harness # 56016
- Video: Trailer Wiring Harness Installation - 2014 Nissan Murano 118653
- Video: Tekonsha Custom Fit Vehicle Wiring - Trailer Hitch Wiring - 118362 Review
- Q&A: Troubleshooting Hopkins Tail Light Wiring Converter
- Q&A: Can a Taillight Converter Module Go Bad After Working Properly for Months
- Shop: T-One Vehicle Wiring Harness with 4-Pole Flat Trailer Connector
- Shop: T-One Vehicle Wiring Harness with 4-Pole Flat Trailer Connector
- Video: Optronics LED Combination Trailer Tail Lights Installation
- Q&A: Trailer Lights Work with Battery But Do Not Work when Connected to Truck
- Search Results: 56496
- Q&A: What is the Difference Between a Class II and a Class III Hitch?
- Video: Choosing the Right Trailer Wiring
- Article: Brake Controller 7- and 4-Way Installation Kit (ETBC7)
- Search Results: trailer hitch
- Video: Tow Ready 4-Pole Mounting Bracket Installation
- Search Results: hitch
- Search Results: trailer brake controller
- Shop: Brake Controller