Troubleshooting a 2020 Jetta R-Line With No Working Driver Side Signals
Question:
I installed Tekonsha 118791 on my 2020 Jetta R Line. The right turn signal is powering both left and right at the plug. The left turn drivers side gets no power at the plug at all. The running lights are at 12v but I haven’t tested the brakes yet. My legs aren’t long enough. Any suggestions?
asked by: Monty C
Expert Reply:
Monty, the first thing I'd do is make sure everything is plugged in properly and the connectors aren't damaged in any way. The next thing, and honestly the last thing you can check is the fuses.
Since the T-One Vehicle Wiring Harness with 4-Pole Flat Trailer Connector # 118791 just plugs into your factory wiring and does not require any splicing there shouldn't have been any issue with the wiring itself, so it leads me to believe the fuse might be blown on the power wire.
It also wouldn't hurt to check your ground and make sure that's not loose and attached to a clean bare metal surface. If that all comes back fine, then you might just have a faulty harness and would just need to replace it.
Product Page this Question was Asked From
T-One Vehicle Wiring Harness with 4-Pole Flat Trailer Connector
- Custom Fit Vehicle Wiring
- Trailer Hitch Wiring
- Powered Converter
- Custom Fit
- 4 Flat
- Tekonsha
more information >
Featured Help Information
Instructions
Continue Researching
- Shop: Trailer Wiring
- Shop: T-One Vehicle Wiring Harness with 4-Pole Flat Trailer Connector
- Shop: T-One Vehicle Wiring Harness with 4-Pole Flat Trailer Connector
- Shop: Erickson Removable Motorcycle Wheel Chock - 6" Wide Tires - Chrome Plated Steel - Qty 1
- Q&A: Trailer Turn Signals Both Blink when Just Left Turn Signal is Activated
- Shop: Curt T-Connector Vehicle Wiring Harness with 4-Pole Flat Trailer Connector
- Shop: Curt T-Connector Vehicle Wiring Harness with 4-Pole Flat Trailer Connector
- Q&A: Attaching E-Track to Wooden Trailer Floor
- Q&A: Can the Erickson Horizontal E-Track # E19148 be Installed on a Wood Deck
- Q&A: Troubleshooting Function Issues With Tekonsha Trailer Wiring Harness # 118336
- Q&A: Troubleshooting Trailer Brake Lights Not Functioning on Tekonsha Harness for 2018 Volkswagen Golf
- Q&A: Will The Curt Hitch And Wiring From A 2020 VW Jetta Also Fit A 2021 VW Jetta?
- Search Results: 68149
- Shop: Trailer Hitch
- Video: Choosing the Right Trailer Wiring
- Q&A: What is the Difference Between a Class II and a Class III Hitch?
- Article: Brake Controller 7- and 4-Way Installation Kit (ETBC7)
- Shop: 7- and 4-Pole Trailer Connector Socket w/ Mounting Bracket - Vehicle End
- Shop: Curt Powered Tail Light Converter with 4-Pole Flat Trailer Connector
- Search Results: 44649
- Article: Trailer Wiring Diagrams
- Video: Choosing the Right Brake Controller
- Shop: Brake Controller
- Search Results: 25580
- Shop: Fifth Wheel Hitch
- Video: Tow Ready 4-Pole Mounting Bracket Installation
- Article: How to Choose the Right Trailer Hitch Class
- Shop: Gooseneck Hitch
- Article: How to Measure for Trailer Hitch Drop
- Video: Lippert Solera Slider Slide-Topper Review
Monty
3/28/2024
I went through all the wiring last night and used the vehicle ground. I have a good ground and I’m getting power to the box.