Pop up trailer brake light and turn signal on right side not working
Updated 08/19/2020 | Published 08/14/2020 >
Products Featured in This Question
Question:
I have a 7 way plug on my trailer and the trailers brake light and turn signal on the right side are not working. I thought the problem was on my trailer, but when I connected the trailer to my 2nd truck, the lights were working. The problem seems to be on my 2013 Toyota Tacoma... I assume. I checked to see if there was power coming to the trailer plug on the truck and it does have power when I checked with a circuit tester. What else could it be?
asked by: Hector
Expert Reply:
I recommend checking the fuses under your dash. Some vehicles will have separate fuses for each function. My uncle had the same issue. I advised him to check the fuses first and he determined that he had a fuse blown. If your fuses are not the issue then check your 7 pole plug on the back of your Tacoma again. Have someone run through all the functions and test each one. You may be getting power to the plug but each function is going to be separate. If your determine that some of your functions are not working at your plug you can remove the wiring bundle on the back of the plug. Check to see if there is any corrosion. A lot of times moisture will gather in between the wire connector and the plug itself. If there is you can try scraping the corrosion off or replacing the plug itself. Add dialectic grease to the pins before connecting the two back together to prevent further corrosion. I recommend one of these as a replacements EZ Connector Magnetic 7-Way Trailer Connectors w/ Watertight Seal - Custom - Vehicle/Trailer End Item # 319-R7-02. Curt Trailer Connector Adapter - 4-Way to 7-Way RV and 4-Way Flat Item # C57672. Hopkins Endurance Quick-Install 7-Way Trailer Connector with Universal Pigtail Harness - Vehicle End Item # HM47210
Product Page this Question was Asked From
Peterson Combination Trailer Tail Light - 6 Function - Incandescent - Square - Passenger Side
- Trailer Lights
- Tail Lights
- Rear Reflector
- Side Marker
- Side Reflector
- Stop
- Tail
- Turn
- Square
- Surface Mount
- Non-Submersible Lights
- Incandescent Light
- 4-3/4L x 4-1/2W Inch
- Red
- Peterson
more information >
Continue Researching
- Q&A: How Difficult To Install EcoHitch EH75KR On A 2024 Cadillac Lyriq
- Article: Trailer Wiring Diagrams
- Q&A: Instructions to Wire a Trailer for Electric Brakes
- Q&A: Is My OEM Brake Controller in My 2020 GMC 2500 HD Diesel Compatible with Electric Over Hydraulic?
- Q&A: How To Determine The Correct Trim Insert For Your Trailer's Trim Pieces
- Q&A: Size of Adapter and Bleed Screw of part # KBPBB
- Q&A: Trailer Hitch and Wiring Recommendation for 2024 Chevy Trax
- Q&A: What Hitch will Not get in the Way of My 2025 Subaru Forester Hands Free Lift Gate?
- Article: Trailer Lighting Requirements
- Article: Wiring Trailer Lights with a 4-Way Plug (It's Easier Than You Think)
- Article: The 5 Best Trailer Drop Hitches You Can Buy
- Article: Brake Controller 7- and 4-Way Installation Kit (ETBC7)
- Article: Trailer Hitch Balls
- Article: Wiring Trailer Lights with a 7-Way Plug (It's Easier Than You Think)

