Troubleshooting No Power to 7 way Plug From Converter on Tekonsha 118290
Question:
I installed the Tekonsha 118920 kit in my Subaru. The kit does not work, save for the 12v feed that I ran to the battery. Looking at the OEM harness to the kits adapter, it looks like the wires are terminated in the wrong location of the plug. I need to verify the wiring
asked by: Shawn D
Helpful Expert Reply:
The Tekonsha # 118290 is a confirmed fit on the 2020 Subaru Ascent, and it sounds like maybe you're seeing different colors on the wires coming out of your factory harness compared to the one on the on the Tekonsha # 118290 harness. I'll start by saying that the colors aren't always a perfect indicator, so you can use a circuit tester like the # PTW2993 to test the wires going into the harness that you're plugging into to make sure that they're providing power with the appropriate functions engaged. You'll want to test the brake lights and turn signals to see if they're supplying power to the plug when you turn them on.
If you're getting power to that plug, I would then test the wires coming out of the converter box on the Tekonsha harness. If you're not seeing any power on the outward feed of the box into the 7 way plug, the box might have been damaged and it will need to be replaced.
If you can start testing there and let me know what you find, I can give you a few other things that we can potentially look for. I'd also check to make sure that you've found the correct plug, as it could be possible that there are two similar plugs in that location.
![Erik B](https://images.etrailer.com/static/images/catg/people/1815_tn.jpg)
Products Referenced in This Question
Product Page this Question was Asked From
Tekonsha OEM Replacement Vehicle Wiring Harness with 7-Way Trailer Connector
- Custom Fit Vehicle Wiring
- Trailer Hitch Wiring
- Powered Converter
- Custom Fit
- 7 Round - Blade
- Tekonsha
more information >
Featured Help Information
Instructions
Continue Researching
- Article: Brake Controller 7- and 4-Way Installation Kit (ETBC7)
- Q&A: Recommended 7-Way Connector for a 2019 Subaru Ascent
- Article: Trailer Wiring Diagrams
- Q&A: Advice for Routing Power Wire for Tekonsha Trailer Wiring on 2020 Subaru Ascent
- Q&A: MORryde Cushioned Pin Box For 2024 Brinkley Model Z 3610 w/ Lippert Rhino Pin Box
- Article: Towing a Trailer? Let's Talk About Brake Controllers
- Q&A: How To Install a 7-Way Trailer Wiring Harness On a 2019 Subaru Ascent
- Q&A: Switch Panel for a Redarc Control Knob on a 2022 Subaru Ascent
- Q&A: How Do I Add a 7-Way Connector to a 2023 Subaru Ascent?
- Article: How to Measure for Trailer Hitch Drop
- Q&A: What is the Difference Between a Class II and a Class III Hitch?
- Article: How Much Trailer Can I Really Tow
- Article: Best Bike Racks for Electric Bikes
- Article: 5 Things to Know About Weight Distribution Hitches