Troubleshooting License Plate Lights Not Working For Brand New Trailer
Updated 07/07/2023 | Published 07/06/2023 >
Question:
License plate lights went out on brand new tailer. All the other lights on trailer work fine. Changed out the bulb and still isn’t working. What else could be the issue?
asked by: Ramiro N
Expert Reply:
You may have a short in the wiring or the ground is bad for your license plate lights. You can use a Test Light # PTW2993 to determine if you have power getting all the way to the light socket. This is generally the prong on the bottom of the bulb depending on what light bulb it uses. If not you will want to trace the power wire to determine where the wire is damaged and fix this.
If you have power getting to the light you will next want to check the ground. Corrosion can often build up between the frame and wiring causing the connection to fail. You can clean these surfaces, reattach the connection and verify if the lights begin to work.
Let me know if you are still having issues.
Product Page this Question was Asked From
Continue Researching
- Shop: Rambler ST205/75R15 Trailer Tire with Black Vesper Mod Wheel - 5 on 4-1/2
- Search Results: coupler lock
- Q&A: How to Ground a License Plate Light
- Shop: Brake Controller
- Shop: Air Lift LoadLifter 5000 Air Helper Springs - Rear Axle
- Q&A: Is Rough Ride Common with Air Lift Air Bag Kit with 5 PSI in Ford F-450
- Shop: Suspension Enhancement
- Shop: Curt 2-to-3 Tail Light Converter for Towed Vehicles w/ Incandescent Tail Lights
- Shop: Universal Installation Kit for Trailer Brake Controller - 7-Way RV and 4-Way Flat - 10 Gauge Wires
- Shop: Roadmaster Smart Diodes for Variable Voltage LED Tail Lights - Qty 2
- Video: This Old Trailer: Troubleshooting the Ground Wire
- Shop: Vehicle Tow Bar Wiring
- Q&A: What is the Difference Between a Class II and a Class III Hitch?
- Shop: Trailer Hitch
- Search Results: trailer hitch
- Article: Trailer Wiring Diagrams
- Shop: Curt Echo Wireless Brake Controller - 7-Way Plug-in w/ Bluetooth App - Up to 2 Axles - Proportional
- Shop: Trailer Wiring
- Search Results: trailer tires and wheels
- Article: How to Measure for Trailer Hitch Drop
- Shop: etrailer Anti-Rattle Hitch Collar for 2" Hitch Receivers
- Q&A: Installation Time for Blue Ox BX1128 Flat Tow Base Plate Kit for 2016 Jeep Grand Cherokee
- Video: Redarc Tow-Pro Liberty Brake Controller Review RED24FR
- Q&A: What is the Difference Between Load Range C and D ST175/80D13 Trailer Tires
- Search Results: trailer wiring
- Video: What to Know About the Curt TriFlex NEXT Trailer Brake Controller
- Article: Brake Controller 7- and 4-Way Installation Kit (ETBC7)
- Search Results: trailer jack
- Video: Choosing the Right Vehicle Suspension Upgrades
- Q&A: What is the Difference Between a 4-Way and 7-Way Trailer Connector

